Analysis

  • max time kernel
    137s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2023 16:49

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 2 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 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:4668
    • C:\Users\Admin\AppData\Local\Temp\Contract.exe
      "C:\Users\Admin\AppData\Local\Temp\Contract.exe"
      2⤵
        PID:3336
      • C:\Users\Admin\AppData\Local\Temp\Contract.exe
        "C:\Users\Admin\AppData\Local\Temp\Contract.exe"
        2⤵
          PID:3992
        • C:\Users\Admin\AppData\Local\Temp\Contract.exe
          "C:\Users\Admin\AppData\Local\Temp\Contract.exe"
          2⤵
            PID:4508
          • 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:4844

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/4668-10-0x0000000005400000-0x000000000540A000-memory.dmp

          Filesize

          40KB

        • memory/4668-4-0x0000000005370000-0x0000000005380000-memory.dmp

          Filesize

          64KB

        • memory/4668-0-0x0000000074AA0000-0x0000000075250000-memory.dmp

          Filesize

          7.7MB

        • memory/4668-16-0x0000000074AA0000-0x0000000075250000-memory.dmp

          Filesize

          7.7MB

        • memory/4668-11-0x00000000068F0000-0x000000000694E000-memory.dmp

          Filesize

          376KB

        • memory/4668-5-0x0000000005130000-0x000000000513A000-memory.dmp

          Filesize

          40KB

        • memory/4668-6-0x0000000005420000-0x00000000054BC000-memory.dmp

          Filesize

          624KB

        • memory/4668-7-0x00000000053C0000-0x00000000053D2000-memory.dmp

          Filesize

          72KB

        • memory/4668-8-0x0000000074AA0000-0x0000000075250000-memory.dmp

          Filesize

          7.7MB

        • memory/4668-9-0x00000000053F0000-0x00000000053F8000-memory.dmp

          Filesize

          32KB

        • memory/4668-2-0x0000000005760000-0x0000000005D04000-memory.dmp

          Filesize

          5.6MB

        • memory/4668-1-0x00000000006E0000-0x000000000075C000-memory.dmp

          Filesize

          496KB

        • memory/4668-3-0x00000000051B0000-0x0000000005242000-memory.dmp

          Filesize

          584KB

        • memory/4668-13-0x0000000005370000-0x0000000005380000-memory.dmp

          Filesize

          64KB

        • memory/4844-15-0x0000000074AA0000-0x0000000075250000-memory.dmp

          Filesize

          7.7MB

        • memory/4844-12-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/4844-17-0x0000000005B40000-0x0000000005B50000-memory.dmp

          Filesize

          64KB

        • memory/4844-18-0x0000000074AA0000-0x0000000075250000-memory.dmp

          Filesize

          7.7MB

        • memory/4844-19-0x0000000005B40000-0x0000000005B50000-memory.dmp

          Filesize

          64KB

        • memory/4844-20-0x00000000016B0000-0x0000000001700000-memory.dmp

          Filesize

          320KB

        • memory/4844-21-0x0000000006CC0000-0x0000000006E82000-memory.dmp

          Filesize

          1.8MB