Analysis

  • max time kernel
    136s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2023 06:47

General

  • Target

    contract.exe

  • Size

    522KB

  • MD5

    721e61ae010bd0e683bda80e28b977ae

  • SHA1

    f2d3cbe4c62f632eff574c3816a231d40ab0fdfa

  • SHA256

    7ea4a70d11f9b347dc1130489ca32322875d587f11963d3b8c6e8583eac113b7

  • SHA512

    9a853f4c31a1700c59214ec784d4514f7d5204aec12bbd02f7f3517dd8dd0e5cb94a37e5b96a7c70535aba31d1835b52c32737a7f8ea3f169bbec76c0d955fb2

  • SSDEEP

    12288:Ap0CQmbCp8HBSR67V2xEbJ8Wp/sUCw6n8Ki70vspK:BsPaUCw68PQu

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.mct2.co.za
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    00000

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • 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 2 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\contract.exe
    "C:\Users\Admin\AppData\Local\Temp\contract.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2892
    • C:\Users\Admin\AppData\Local\Temp\contract.exe
      "C:\Users\Admin\AppData\Local\Temp\contract.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2652

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/2652-11-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2652-19-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

  • memory/2652-18-0x0000000006790000-0x0000000006952000-memory.dmp

    Filesize

    1.8MB

  • memory/2652-17-0x0000000006570000-0x00000000065C0000-memory.dmp

    Filesize

    320KB

  • memory/2652-16-0x0000000005210000-0x0000000005220000-memory.dmp

    Filesize

    64KB

  • memory/2652-14-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

  • memory/2892-4-0x00000000055F0000-0x0000000005600000-memory.dmp

    Filesize

    64KB

  • memory/2892-8-0x0000000005A70000-0x0000000005A7A000-memory.dmp

    Filesize

    40KB

  • memory/2892-9-0x000000000C5B0000-0x000000000C60E000-memory.dmp

    Filesize

    376KB

  • memory/2892-10-0x000000000FCA0000-0x000000000FD3C000-memory.dmp

    Filesize

    624KB

  • memory/2892-7-0x0000000005810000-0x0000000005818000-memory.dmp

    Filesize

    32KB

  • memory/2892-6-0x00000000057F0000-0x000000000580A000-memory.dmp

    Filesize

    104KB

  • memory/2892-15-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

  • memory/2892-5-0x00000000054B0000-0x00000000054BA000-memory.dmp

    Filesize

    40KB

  • memory/2892-0-0x0000000074FE0000-0x0000000075790000-memory.dmp

    Filesize

    7.7MB

  • memory/2892-3-0x00000000053F0000-0x0000000005482000-memory.dmp

    Filesize

    584KB

  • memory/2892-2-0x0000000005A90000-0x0000000006034000-memory.dmp

    Filesize

    5.6MB

  • memory/2892-1-0x0000000000AE0000-0x0000000000B68000-memory.dmp

    Filesize

    544KB