RANSOM_BLACKHAT.A
Ransom.HiddenTear (Malwarebytes); Trojan-Ransom.BlackHat (Ikarus)
Windows

Threat Type: Ransomware
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It is capable of encrypting files in the affected system.
It encrypts files with specific file extensions. It encrypts files found in specific folders.
TECHNICAL DETAILS
Arrival Details
This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Ransomware drops the following copies of itself into the affected system:
- %Application Data%\MoWare_H\MoWare H.F.D\1.0.0.0\MoWare H.F.D.exe
(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
It creates the following folders:
- %Application Data%\MoWare_H\MoWare H.F.D\1.0.0.0
- %Application Data%\MoWare_H\MoWare H.F.D
- %Application Data%\MoWare_H
(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
Stolen Information
This Ransomware sends the gathered information via HTTP POST to the following URL:
- http://{BLOCKED}ost/ggg/gen.php
Other Details
This Ransomware connects to the following URL(s) to check for an Internet connection:
- http://www.google.com
It does the following:
- This ransomware adds the following registry entries when the windows from closes:
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System DisableRegistryTools = 1
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System DisableTaskMgr = 1
- HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\System DisableCMD = 1
- This ransomware display window application:
It is capable of encrypting files in the affected system.
Ransomware Routine
This Ransomware encrypts files with the following extensions:
- .dat
- .mx0
- .cd
- .pdb
- .xqx
- .old
- .cnt
- .rtp
- .qss
- .qst
- .fx0
- .fx1
- .ipg
- .ert
- .pic
- .img
- .cur
- .fxr
- .slk
- .m4u
- .mpe
- .mov
- .wmv
- .mpg
- .vob
- .mpeg
- .3g2
- .m4v
- .avi
- .mp4
- .flv
- .mkv
- .3gp
- .asf
- .m3u
- .m3u8
- .wav
- .mp3
- .m4a
- .m
- .rm
- .flac
- .mp2
- .mpa
- .aac
- .wma
- .djv
- .djvu
- .jpeg
- .jpg
- .bmp
- .png
- .jp2
- .lz
- .rz
- .zipx
- .gz
- .bz2
- .s7z
- .tar
- .7z
- .tgz
- .rar
- .ziparc
- .paq
- .bak
- .set
- .back
- .std
- .vmx
- .vmdk
- .vdi
- .qcow
- .ini
- .accd
- .db
- .sqli
- .sdf
- .mdf
- .myd
- .frm
- .odb
- .myi
- .dbf
- .indb
- .mdb
- .ibd
- .sql
- .cgn
- .dcr
- .fpx
- .pcx
- .rif
- .tga
- .wpg
- .wi
- .wmf
- .tif
- .xcf
- .tiff
- .xpm
- .nef
- .orf
- .ra
- .bay
- .pcd
- .dng
- .ptx
- .r3d
- .raf
- .rw2
- .rwl
- .kdc
- .yuv
- .sr2
- .srf
- .dip
- .x3f
- .mef
- .raw
- .log
- .odg
- .uop
- .potx
- .potm
- .pptx
- .rsspptm
- .aaf
- .xla
- .sxd
- .pot
- .eps
- .as3
- .pns
- .wpd
- .wps
- .msg
- .pps
- .xlam
- .xll
- .ost
- .sti
- .sxi
- .otp
- .odp
- .wks
- .vcf
- .xltx
- .xltm
- .xlsx
- .xlsm
- .xlsb
- .cntk
- .xlw
- .xlt
- .xlm
- .xlc
- .dif
- .sxc
- .vsd
- .ots
- .prn
- .ods
- .hwp
- .dotm
- .dotx
- .docm
- .docx
- .dot
- .cal
- .shw
- .sldm
- .txt
- .csv
- .mac
- .met
- .wk3
- .wk4
- .uot
- .rtf
- .sldx
- .xls
- .ppt
- .stw
- .sxw
- .dtd
- .eml
- .ott
- .odt
- .doc
- .odm
- .ppsm
- .xlr
- .odc
- .xlk
- .ppsx
- .obi
- .ppam
- .text
- .docb
- .wb2
- .mda
- .wk1
- .sxm
- .otg
- .oab
- .cmd
- .bat
- .h
- .asx
- .lua
- .pl
- .as
- .hpp
- .clas
- .js
- .fla
- .py
- .rb
- .jsp
- .cs
- .c
- .jar
- .java
- .asp
- .vb
- .vbs
- .asm
- .pas
- .cpp
- .xml
- .php
- .plb
- .asc
- .lay6
- .pp4
- .pp5
- .ppf
- .pat
- .sct
- .ms11
- .lay
- .iff
- .ldf
- .tbk
- .swf
- .brd
- .css
- .dxf
- .dds
- .efx
- .sch
- .dch
- .ses
- .mml
- .fon
- .gif
- .psd
- .html
- .ico
- .ipe
- .dwg
- .jng
- .cdr
- .aep
- .aepx
- .123
- .prel
- .prpr
- .aet
- .fim
- .pfb
- .ppj
- .indd
- .mhtm
- .cmx
- .cpt
- .csl
- .indl
- .dsf
- .ds4
- .drw
- .indt
- .pdd
- .per
- .lcd
- .pct
- .prf
- .pst
- .inx
- .plt
- .idml
- .pmd
- .psp
- .ttf
- .3dm
- .ai
- .3ds
- .ps
- .cpx
- .str
- .cgm
- .clk
- .cdx
- .xhtm
- .cdt
- .fmv
- .aes
- .gem
- .max
- .svg
- .mid
- .iif
- .nd
- .2017
- .tt20
- .qsm
- .2015
- .2014
- .2013
- .aif
- .qbw
- .qbb
- .qbm
- .ptb
- .qbi
- .qbr
- .2012
- .des
- .v30
- .qbo
- .stc
- .lgb
- .qwc
- .qbp
- .qba
- .tlg
- .qbx
- .qby
- .1pa
- .ach
- .qpd
- .gdb
- .tax
- .qif
- .t14
- .qdf
- .ofx
- .qfx
- .t13
- .ebc
- .ebq
- .2016
- .tax2
- .mye
- .myox
- .ets
- .tt14
- .epb
- .500
- .txf
- .t15
- .t11
- .gpc
- .qtx
- .itf
- .tt13
- .t10
- .qsd
- .iban
- .ofc
- .bc9
- .mny
- .13t
- .qxf
- .amj
- .m14
- ._vc
- .tbp
- .qbk
- .aci
- .npc
- .qbmb
- .sba
- .cfp
- .nv2
- .tfx
- .n43
- .let
- .tt12
- .210
- .dac
- .slp
- .qb20
- .saj
- .zdb
- .tt15
- .ssg
- .t09
- .epa
- .qch
- .pd6
- .rdy
- .sic
- .ta1
- .lmr
- .pr5
- .op
- .sdy
- .brw
- .vnd
- .esv
- .kd3
- .vmb
- .qph
- .t08
- .qel
- .m12
- .pvc
- .q43
- .etq
- .u12
- .hsr
- .ati
- .t00
- .mmw
- .bd2
- .ac2
- .qpb
- .tt11
- .zix
- .ec8
- .nv
- .lid
- .qmtf
- .hif
- .lld
- .quic
- .mbsb
- .nl2
- .qml
- .wac
- .cf8
- .vbpf
- .m10
- .qix
- .t04
- .qpg
- .quo
- .ptdb
- .gto
- .pr0
- .vdf
- .q01
- .fcr
- .gnc
- .ldc
- .t05
- .t06
- .tom
- .tt10
- .qb1
- .t01
- .rpf
- .t02
- .tax1
- .1pe
- .skg
- .pls
- .t03
- .xaa
- .dgc
- .mnp
- .qdt
- .mn8
- .ptk
- .t07
- .chg
- .#vc
- .qfi
- .acc
- .m11
- .kb7
- .q09
- .esk
- .09i
- .cpw
- .sbf
- .mql
- .dxi
- .kmo
- .md
- .u11
- .oet
- .ta8
- .efs
- .h12
- .mne
- .ebd
- .fef
- .qpi
- .mn5
- .exp
- .m16
- .09t
- .00c
- .qmt
- .cfdi
- .u10
- .s12
- .qme
- .int?
- .cf9
- .ta5
- .u08
- .mmb
- .qnx
- .q07
- .tb2
- .say
- .ab4
- .pma
- .defx
- .tkr
- .q06
- .tpl
- .ta2
- .qob
- .m15
- .fca
- .eqb
- .q00
- .mn4
- .lhr
- .t99
- .mn9
- .qem
- .scd
- .mwi
- .mrq
- .q98
- .i2b
- .mn6
- .q08
- .kmy
- .bk2
- .stm
- .mn1
- .bc8
- .pfd
- .bgt
- .hts
- .tax0
- .cb
- .resx
- .mn7
- .08i
- .mn3
- .ch
- .meta
- .07i
- .rcs
- .dtl
- .ta9
- .mem
- .seam
- .btif
- .11t
- .efsl
- .$ac
- .emp
- .imp
- .fxw
- .sbc
- .bpw
- .mlb
- .10t
- .fa1
- .saf
- .trm
- .fa2
- .pr2
- .xeq
- .sbd
- .fcpa
- .ta6
- .tdr
- .acm
- .lin
- .dsb
- .vyp
- .emd
- .pr1
- .mn2
- .bpf
- .mws
- .h11
- .pr3
- .gsb
- .mlc
- .nni
- .cus
- .ldr
- .ta4
- .inv
- .omf
- .reb
- .qdfx
- .pg
- .coa
- .rec
- .rda
- .ffd
- .ml2
- .ddd
- .ess
- .qbmd
- .afm
- .d07
- .vyr
- .acr
- .dtau
- .ml9
- .bd3
- .pcif
- .cat
- .h10
- .ent
- .fyc
- .p08
- .jsd
- .zka
- .hbk
- .bkf
- .mone
- .pr4
- .qw5
- .cdf
- .gfi
- .cht
- .por
- .qbz
- .ens
- .3pe
- .pxa
- .intu
- .trn
- .3me
- .07g
- .jsda
- .2011
- .fcpr
- .qwmo
- .t12
- .pfx
- .p7b
- .der
- .nap
- .p12
- .p7c
- .crt
- .csr
- .pem
- .gpg
- .key
- .ex4
- .mq4
It encrypts files found in the following folders:
- %Desktop%/test
(Note: %Desktop% is the desktop folder, where it usually is C:\Documents and Settings\{user name}\Desktop in Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\Desktop in Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
It appends the following extension to the file name of the encrypted files:
- .H_F_D_locked extension
NOTES:
This ransomware displays the following window applications as ransom note:
This ransomware is also in development (in-dev ransomware).
SOLUTION
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
- DisableRegistryTools = 1
- DisableRegistryTools = 1
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
- DisableTaskMgr = 1
- DisableTaskMgr = 1
- In HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\System
- DisableCMD = 1
- DisableCMD = 1
Step 4
Search and delete these folders
- %Application Data%\MoWare_H\MoWare H.F.D\1.0.0.0
- %Application Data%\MoWare_H\MoWare H.F.D
- %Application Data%\MoWare_H
Step 5
Scan your computer with your Trend Micro product to delete files detected as RANSOM_BLACKHAT.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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