Analysis

  • max time kernel
    121s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20231025-en
  • resource tags

    arch:x64arch:x86image:win7-20231025-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2023 16:50

General

  • Target

    Contract.exe

  • Size

    475KB

  • MD5

    9176d70680c26f6ecdcaa34176e156cc

  • SHA1

    921afd31d5f7acaf2308325346a705d2ca11d18e

  • SHA256

    d80adfb429565563472cc6e9d4fef4b8435c2804ad977c4f4d5452cf5462cb59

  • SHA512

    bbfeb4ddd91151c735a6dd9e5522f56ae0bd58fd86ae2df9fe7aa0e4ce41cbe15824beb91e6163b4aae47f8327375ea46690d6924c10f625a41cf93adf210bc9

  • SSDEEP

    12288:/y8opMEnPv0OxHxsk22oAKXTYLzLFjLm5AbAJzh/j67FEoc05n1F:/FUv/xsk2pcLvFjLmxjEEn0F

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 6 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 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 behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1988
    • C:\Users\Admin\AppData\Local\Temp\Contract.exe
      "C:\Users\Admin\AppData\Local\Temp\Contract.exe"
      2⤵
        PID:2940
      • 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:2700

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1988-0-0x00000000001F0000-0x000000000026C000-memory.dmp

      Filesize

      496KB

    • memory/1988-1-0x0000000074060000-0x000000007474E000-memory.dmp

      Filesize

      6.9MB

    • memory/1988-2-0x0000000004210000-0x0000000004250000-memory.dmp

      Filesize

      256KB

    • memory/1988-3-0x0000000000400000-0x0000000000412000-memory.dmp

      Filesize

      72KB

    • memory/1988-4-0x0000000000530000-0x0000000000538000-memory.dmp

      Filesize

      32KB

    • memory/1988-5-0x0000000000540000-0x000000000054A000-memory.dmp

      Filesize

      40KB

    • memory/1988-6-0x0000000002050000-0x00000000020AE000-memory.dmp

      Filesize

      376KB

    • memory/1988-21-0x0000000074060000-0x000000007474E000-memory.dmp

      Filesize

      6.9MB

    • memory/2700-13-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2700-11-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2700-9-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2700-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2700-16-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2700-7-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2700-20-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2700-18-0x0000000000400000-0x0000000000424000-memory.dmp

      Filesize

      144KB

    • memory/2700-22-0x0000000074060000-0x000000007474E000-memory.dmp

      Filesize

      6.9MB

    • memory/2700-23-0x0000000000550000-0x0000000000590000-memory.dmp

      Filesize

      256KB

    • memory/2700-24-0x0000000074060000-0x000000007474E000-memory.dmp

      Filesize

      6.9MB

    • memory/2700-25-0x0000000000550000-0x0000000000590000-memory.dmp

      Filesize

      256KB