General

  • Target

    filezx.exe

  • Size

    379KB

  • Sample

    220522-f4bm4abagm

  • MD5

    7e439c7f9636682598cb3438da45ebe9

  • SHA1

    1033a94c129f60d5ef3915f0f8f1a9882eb4c845

  • SHA256

    bfc94f0bd631a75dca96329c99631b3d7a6f6152974b091d280a8f77ddd88e15

  • SHA512

    deebc13f38f464d6a3a660391cc70d30e774618c89604559354b393317b35eaae6b871718d86dd22d9a5efa5e9abc09fa9867aea740998fe7b985048a52c8cb9

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.twinarrow.com.my
  • Port:
    587
  • Username:
    account@twinarrow.com.my
  • Password:
    accountaccount123@
  • Email To:
    toniclinton33@gmail.com

Targets

    • Target

      filezx.exe

    • Size

      379KB

    • MD5

      7e439c7f9636682598cb3438da45ebe9

    • SHA1

      1033a94c129f60d5ef3915f0f8f1a9882eb4c845

    • SHA256

      bfc94f0bd631a75dca96329c99631b3d7a6f6152974b091d280a8f77ddd88e15

    • SHA512

      deebc13f38f464d6a3a660391cc70d30e774618c89604559354b393317b35eaae6b871718d86dd22d9a5efa5e9abc09fa9867aea740998fe7b985048a52c8cb9

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • Snake Keylogger Payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks