Trojan.W97M.POWLOAD.SMAD69
TrojanDownloader:O97M/Emotet.SY!MTB (Microsoft); RDN/Generic Downloader.x (McAfee)
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
TECHNICAL DETAILS
194,485 bytes
DOC
Yes
27 Dec 2019
Arrival Details
This Trojan 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 Trojan creates the following folders:
- %User Profile%\Application Data\Microsoft\Forms
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name} on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
Other System Modifications
This Trojan modifies the following file(s):
- %Application Data%\Microsoft\Office\Word12.pip
(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It adds the following registry keys:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\
CTF\TIP\{F25E9F57-2FC8-4EB3-A41A-CCE5F08541E6}\
LanguageProfile\0x00000409\{F2510000-2FC8-4EB3-A41A-CCE5F08541E6}
HKEY_CURRENT_USER\SOFTWARE\Microsoft\
CTF\Assemblies\0x00000409\
{{GUID}}
HKEY_CURRENT_USER\Software\Microsoft\
TPG\HWRCustomization
HKEY_CURRENT_USER\Software\Microsoft\
TPG\HWRCustomization\{6D1087D7-61D2-495F-9293-5B7B1C3FCEAB}
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\Interface\{BEF6E003-A874-101A-8BBA-00AA00300CAB}
(Default) = ""
HKEY_CURRENT_USER\Software\Microsoft\
CTF\TIP\{F25E9F57-2FC8-4EB3-A41A-CCE5F08541E6}\
LanguageProfile\0x00000409\{F2510000-2FC8-4EB3-A41A-CCE5F08541E6}
Enable = "1"
HKEY_CURRENT_USER\Software\Microsoft\
CTF\Assemblies\0x00000409\
{{GUID}}
Default = "{F25E9F57-2FC8-4EB3-A41A-CCE5F08541E6}"
HKEY_CURRENT_USER\Software\Microsoft\
CTF\Assemblies\0x00000409\
{{GUID}}
Profile = "{F2510000-2FC8-4EB3-A41A-CCE5F08541E6}"
HKEY_CURRENT_USER\Software\Microsoft\
CTF\Assemblies\0x00000409\
{{GUID}}
KeyboardLayout = "0"
Dropping Routine
This Trojan drops the following files:
- %AppDataLocal%\GDIPFONTCACHEV1.DAT
- %Application Data%\Microsoft\Office\Word12.pip
- %User Profile%\Application Data\Microsoft\Forms\Inked.exd
- %User Profile%\Application Data\Microsoft\Forms\INKEDLib.exd
- {malware file path and name}
- %User Profile%\Application Data\Microsoft\Forms\WINWORD.box
(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name} on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
This report is generated via an automated analysis system.
SOLUTION
9.850
Step 1
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.
Step 2
Delete this registry key
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\CTF\TIP\{F25E9F57-2FC8-4EB3-A41A-CCE5F08541E6}\LanguageProfile\0x00000409
- {F2510000-2FC8-4EB3-A41A-CCE5F08541E6}
- In HKEY_CURRENT_USER\SOFTWARE\Microsoft\CTF\Assemblies\0x00000409
- {{GUID}}
- In HKEY_CURRENT_USER\Software\Microsoft\TPG
- HWRCustomization
- In HKEY_CURRENT_USER\Software\Microsoft\TPG\HWRCustomization
- {6D1087D7-61D2-495F-9293-5B7B1C3FCEAB}
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_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BEF6E003-A874-101A-8BBA-00AA00300CAB}
- (Default) = ""
- In HKEY_CURRENT_USER\Software\Microsoft\CTF\TIP\{F25E9F57-2FC8-4EB3-A41A-CCE5F08541E6}\LanguageProfile\0x00000409\{F2510000-2FC8-4EB3-A41A-CCE5F08541E6}
- Enable = "1"
- In HKEY_CURRENT_USER\Software\Microsoft\CTF\Assemblies\0x00000409\{{GUID}}
- Default = "{F25E9F57-2FC8-4EB3-A41A-CCE5F08541E6}"
- In HKEY_CURRENT_USER\Software\Microsoft\CTF\Assemblies\0x00000409\{{GUID}}
- Profile = "{F2510000-2FC8-4EB3-A41A-CCE5F08541E6}"
- In HKEY_CURRENT_USER\Software\Microsoft\CTF\Assemblies\0x00000409\{{GUID}}
- KeyboardLayout = "0"
Step 4
Search and delete these components
- %AppDataLocal%\GDIPFONTCACHEV1.DAT
- %Application Data%\Microsoft\Office\Word12.pip
- %User Profile%\Application Data\Microsoft\Forms\Inked.exd
- %User Profile%\Application Data\Microsoft\Forms\INKEDLib.exd
- {malware file path and name}
- %User Profile%\Application Data\Microsoft\Forms\WINWORD.box
Step 5
Search and delete this folder
- %User Profile%\Application Data\Microsoft\Forms
Step 6
Scan your computer with your Trend Micro product to delete files detected as Trojan.W97M.POWLOAD.SMAD69. 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 the following Trend Micro Support pages for more information:
Step 7
Restore deleted/modified files and/or registry entries from backup
*Note: Only Microsoft-related files/keys/values will be restored. If this malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.
- %Application Data%\Microsoft\Office\Word12.pip
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