Analysis by: Maria Emreen Viray
 ALIASES:

Trojan-PSW.PHP.PhishMailer.o (KASPERSKY); PHP/Mailar.I!tr (FORTINET)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Hacking Tool

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Canal de infecção: Downloaded from the Internet

This Hacking Tool arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It gathers certain information on the affected computer.

  TECHNICAL DETAILS

Tipo de compactação: 166,453 bytes
Tipo de arquivo: PHP
Residente na memória: No
Data de recebimento das amostras iniciais: 14 Dec 2021
Carga útil: Steals information, Displays windows

Arrival Details

This Hacking Tool arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Information Theft

This Hacking Tool gathers the following information on the affected computer:

  • PHP Version
  • OS Version
  • IP Address

Other Details

This Hacking Tool requires being hosted on a web server in order to proceed with its intended routine.

NOTES:

This Hacking Tool does the following:

  • It enables user to create and send e-mail to target e-mail addresses using PHP library.
  • It requires the following password to be accessed by users:
    • gedpmjxvac
  • It displays text boxes to input custom data for e-mail creation purpose:
  • It connects to the following URL to check spam score of e-mail composed:
    • http://spamcheck.postmarkapp.com/filter
  • It contains the following list of anti-spam databases to check if hosting server's IP is listed:
    • all.s5h.net
    • b.barracudacentral.org
    • bl.spamcop.net
    • blacklist.woody.ch
    • bogons.cymru.com
    • cbl.abuseat.org
    • cdl.anti-spam.org.cn
    • combined.abuse.ch
    • db.wpbl.info
    • dnsbl-1.uceprotect.net
    • dnsbl-2.uceprotect.net
    • dnsbl-3.uceprotect.net
    • dnsbl.anticaptcha.net
    • dnsbl.dronebl.org
    • dnsbl.inps.de
    • dnsbl.sorbs.net
    • drone.abuse.ch
    • duinv.aupads.org
    • dul.dnsbl.sorbs.net
    • dyna.spamrats.com
    • dynip.rothen.com
    • http.dnsbl.sorbs.net
    • ips.backscatterer.org
    • ix.dnsbl.manitu.net
    • korea.services.net
    • misc.dnsbl.sorbs.net
    • noptr.spamrats.com
    • orvedb.aupads.org
    • pbl.spamhaus.org
    • proxy.bl.gweep.ca
    • psbl.surriel.com
    • relays.bl.gweep.ca
    • relays.nether.net
    • sbl.spamhaus.org
    • short.rbl.jp
    • singular.ttk.pte.hu
    • smtp.dnsbl.sorbs.net
    • socks.dnsbl.sorbs.net
    • spam.abuse.ch
    • spam.dnsbl.anonmails.de
    • spam.dnsbl.sorbs.net
    • spam.spamrats.com
    • spambot.bls.digibase.ca
    • spamrbl.imp.ch
    • spamsources.fabel.dk
    • ubl.lashback.com
    • ubl.unsubscore.com
    • virus.rbl.jp
    • web.dnsbl.sorbs.net
    • wormrbl.imp.ch
    • xbl.spamhaus.org
    • z.mailspike.net
    • zen.spamhaus.org
    • zombie.dnsbl.sorbs.net

  SOLUTION

Mecanismo de varredura mínima: 9.800
SSAPI Pattern File: 2.473.00
SSAPI Pattern Release Date: 23 Dec 2021

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

Scan your computer with your Trend Micro product to delete files detected as HackTool.PHP.SpamMailer.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 the following Trend Micro Support pages for more information:


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