Analysis

  • max time kernel
    119s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    18-10-2021 11:18

General

  • Target

    New_Requests_35003502.exe

  • Size

    640KB

  • MD5

    c35701db9ac9d8b75bb57b2758363804

  • SHA1

    fdf6f6997c0dd7228a904d70a2cbe97151c3405b

  • SHA256

    2d5fd822f5e87ccaac8fc9a90050383aed0e32abc3d54378357116771291af05

  • SHA512

    63562fb8154017a61a3e64fbd9c09494c6e87ba0b50352002be6d2c0e4e036caa89bf7212ef8cabb5936a2680fd5ad0a3cda6e87e97854039db53e01ee34db26

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    reptw.xyz
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    =W;D)NMYK*HI

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\New_Requests_35003502.exe
    "C:\Users\Admin\AppData\Local\Temp\New_Requests_35003502.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:592
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 796
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1828

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/592-60-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/592-62-0x00000000000C0000-0x00000000000E6000-memory.dmp

    Filesize

    152KB

  • memory/592-56-0x00000000000C0000-0x00000000000E6000-memory.dmp

    Filesize

    152KB

  • memory/592-57-0x00000000000C0000-0x00000000000E6000-memory.dmp

    Filesize

    152KB

  • memory/592-58-0x00000000000C0000-0x00000000000E6000-memory.dmp

    Filesize

    152KB

  • memory/592-59-0x00000000000C0000-0x00000000000E6000-memory.dmp

    Filesize

    152KB

  • memory/592-72-0x0000000004CF0000-0x0000000004CF1000-memory.dmp

    Filesize

    4KB

  • memory/592-61-0x00000000004203FE-mapping.dmp

  • memory/592-69-0x00000000000C0000-0x00000000000C2000-memory.dmp

    Filesize

    8KB

  • memory/592-65-0x00000000000C0000-0x00000000000E6000-memory.dmp

    Filesize

    152KB

  • memory/592-68-0x00000000000C0000-0x00000000000E6000-memory.dmp

    Filesize

    152KB

  • memory/1828-71-0x0000000000000000-mapping.dmp

  • memory/1828-73-0x0000000000500000-0x0000000000501000-memory.dmp

    Filesize

    4KB

  • memory/2016-53-0x0000000000C40000-0x0000000000C41000-memory.dmp

    Filesize

    4KB

  • memory/2016-55-0x0000000004DD0000-0x0000000004DD1000-memory.dmp

    Filesize

    4KB