Analysis

  • max time kernel
    91s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-01-2023 10:29

General

  • Target

    VSL Q88.exe

  • Size

    17KB

  • MD5

    abb62deff1e4851be179ab55fb65e4a7

  • SHA1

    36d60ff07bcfdbe6c83c69079c954cc655bd9557

  • SHA256

    35a1eb3544b13e48380568cef531dec8473aa229fa4fccc532898b2c514f05ab

  • SHA512

    2e80e80a3c8b3aa4a2a49a8bdc618f464f399e98da68dac4a558282dc237cdd7e4a899969695661af3d462d0c46e211bbd9ae1ee8a55658f724d852cd98b1e6b

  • SSDEEP

    384:eBHyHMiAiIufjm2g6WeLLB3mDTQ8T3Jd:YHyHMi0ufj3H5F3mDF3T

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot1897716112:AAEAtOCkOV8umHBB93Og24bkiIdUKReGK44/sendMessage?chat_id=1745211648

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Adds Run key to start application 2 TTPs 1 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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VSL Q88.exe
    "C:\Users\Admin\AppData\Local\Temp\VSL Q88.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2804
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4656
    • C:\Users\Admin\AppData\Local\Temp\VSL Q88.exe
      "C:\Users\Admin\AppData\Local\Temp\VSL Q88.exe"
      2⤵
        PID:3232
      • C:\Users\Admin\AppData\Local\Temp\VSL Q88.exe
        "C:\Users\Admin\AppData\Local\Temp\VSL Q88.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:3628

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\VSL Q88.exe.log
      Filesize

      1KB

      MD5

      e87e48b105757e1c7563d1c719059733

      SHA1

      28a3f2b2e0672da2b531f4757d2b20b53032dafc

      SHA256

      0aaf22dc84cc3fcfe53de7ccfed8e662247dfb7f1a9967032c88790d0c663461

      SHA512

      bf19c5743143aee914a453c41189c722c9b90a5b8bf299cecf3e1f97656d32cd209ecb74da8aebc89bb41c27d189f73aaaabbc64fe383410c95dc76ad4218968

    • memory/2804-133-0x0000000005E70000-0x0000000005E92000-memory.dmp
      Filesize

      136KB

    • memory/2804-132-0x0000000000570000-0x000000000057A000-memory.dmp
      Filesize

      40KB

    • memory/3232-142-0x0000000000000000-mapping.dmp
    • memory/3628-143-0x0000000000000000-mapping.dmp
    • memory/3628-150-0x00000000069D0000-0x00000000069DA000-memory.dmp
      Filesize

      40KB

    • memory/3628-149-0x0000000006BE0000-0x0000000006C72000-memory.dmp
      Filesize

      584KB

    • memory/3628-148-0x0000000006A10000-0x0000000006BD2000-memory.dmp
      Filesize

      1.8MB

    • memory/3628-147-0x00000000057C0000-0x000000000585C000-memory.dmp
      Filesize

      624KB

    • memory/3628-146-0x0000000005D70000-0x0000000006314000-memory.dmp
      Filesize

      5.6MB

    • memory/3628-144-0x0000000000400000-0x0000000000426000-memory.dmp
      Filesize

      152KB

    • memory/4656-136-0x00000000058A0000-0x0000000005EC8000-memory.dmp
      Filesize

      6.2MB

    • memory/4656-141-0x0000000006B60000-0x0000000006B7A000-memory.dmp
      Filesize

      104KB

    • memory/4656-140-0x0000000007D00000-0x000000000837A000-memory.dmp
      Filesize

      6.5MB

    • memory/4656-139-0x0000000006650000-0x000000000666E000-memory.dmp
      Filesize

      120KB

    • memory/4656-137-0x0000000005F40000-0x0000000005FA6000-memory.dmp
      Filesize

      408KB

    • memory/4656-138-0x0000000006020000-0x0000000006086000-memory.dmp
      Filesize

      408KB

    • memory/4656-135-0x00000000030B0000-0x00000000030E6000-memory.dmp
      Filesize

      216KB

    • memory/4656-134-0x0000000000000000-mapping.dmp