Analysis

  • max time kernel
    91s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-02-2023 13:38

General

  • Target

    f02ef41bb5325c5ae2a5923a7dee230d.exe

  • Size

    539KB

  • MD5

    f02ef41bb5325c5ae2a5923a7dee230d

  • SHA1

    ce1a97e9b2d7d708621bad086a311600bbe1e8de

  • SHA256

    4bae43ed39ce2256e4125bbb217fe624635e1fe4e7a9d662be36d15ec3d0d660

  • SHA512

    8b045e3c80944abdb07d45db60a845a269c9abccbe4729248e9f8c4f46499ba7afeb3228dfc7a915999d7a823cd768e04202f0171dbaf5dd192b18ee6f867e8f

  • SSDEEP

    12288:JXJyeB2gCvIb5/9pKd3Hw0MLzSp2q1R4Pd8yU4gyt2r89+zO9Aez:DyY2pol9SNMLO5R4OL4f8pe

Malware Config

Extracted

Family

snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f02ef41bb5325c5ae2a5923a7dee230d.exe
    "C:\Users\Admin\AppData\Local\Temp\f02ef41bb5325c5ae2a5923a7dee230d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2672
    • C:\Users\Admin\AppData\Local\Temp\f02ef41bb5325c5ae2a5923a7dee230d.exe
      "C:\Users\Admin\AppData\Local\Temp\f02ef41bb5325c5ae2a5923a7dee230d.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2564

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\f02ef41bb5325c5ae2a5923a7dee230d.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/2564-137-0x0000000000000000-mapping.dmp

  • memory/2564-138-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2564-140-0x0000000006370000-0x0000000006532000-memory.dmp

    Filesize

    1.8MB

  • memory/2672-132-0x0000000000D50000-0x0000000000DDC000-memory.dmp

    Filesize

    560KB

  • memory/2672-133-0x0000000005D40000-0x00000000062E4000-memory.dmp

    Filesize

    5.6MB

  • memory/2672-134-0x0000000005790000-0x0000000005822000-memory.dmp

    Filesize

    584KB

  • memory/2672-135-0x0000000003230000-0x000000000323A000-memory.dmp

    Filesize

    40KB

  • memory/2672-136-0x0000000008190000-0x000000000822C000-memory.dmp

    Filesize

    624KB