Analysis

  • max time kernel
    147s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/04/2024, 17:13

General

  • Target
    f86b78245fc59a9841529d0bc4ad6d26_JaffaCakes118.exe
  • Size 731KB
  • Sample240418-vrnt8abd3z
  • SHA256 4849dbdaa543b1235a1f8898c99a782d683bcc95353839889b1c0619d113ccaf
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Looks up external IP address via web service 3 IoCs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f86b78245fc59a9841529d0bc4ad6d26_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f86b78245fc59a9841529d0bc4ad6d26_JaffaCakes118.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2876
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gdDJFprXaHtL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp10A5.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2844
    • C:\Users\Admin\AppData\Local\Temp\f86b78245fc59a9841529d0bc4ad6d26_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\f86b78245fc59a9841529d0bc4ad6d26_JaffaCakes118.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1432
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 1808
        3⤵
        • Program crash
        PID:5032
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1432 -ip 1432
    1⤵
      PID:1844

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          f86b78245fc59a9841529d0bc4ad6d26_JaffaCakes118.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\f86b78245fc59a9841529d0bc4ad6d26_JaffaCakes118.exe.log
          • Size 1KB
          • SHA256 d2d81c1c9d35bc66149beaa77029bee68664d8512fc1efe373180bab77d61026
          • MD5 SHA1 SHA512

          tmp10A5.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\tmp10A5.tmp
          • Size 1KB
          • SHA256 ebdf0683f2b1b2eb8cc9542345c7eb9027ba4408b147295680ccaede974002a9
          • MD5 SHA1 SHA512

          memory/1432-25-0x0000000074580000-0x0000000074D30000-memory.dmp

          memory/1432-24-0x00000000052C0000-0x00000000052D0000-memory.dmp

          memory/1432-22-0x0000000074580000-0x0000000074D30000-memory.dmp

          memory/1432-19-0x0000000000400000-0x0000000000424000-memory.dmp

          memory/2876-5-0x00000000034E0000-0x00000000034F0000-memory.dmp

          memory/2876-13-0x000000000E310000-0x000000000E376000-memory.dmp

          memory/2876-8-0x0000000006050000-0x0000000006066000-memory.dmp

          memory/2876-9-0x0000000074580000-0x0000000074D30000-memory.dmp

          memory/2876-10-0x00000000034E0000-0x00000000034F0000-memory.dmp

          memory/2876-11-0x0000000008B00000-0x0000000008B92000-memory.dmp

          memory/2876-12-0x000000000B270000-0x000000000B296000-memory.dmp

          memory/2876-7-0x0000000005D30000-0x0000000005D86000-memory.dmp

          memory/2876-6-0x0000000005A00000-0x0000000005A0A000-memory.dmp

          memory/2876-0-0x0000000000F80000-0x000000000103E000-memory.dmp

          memory/2876-4-0x0000000005B60000-0x0000000005BF2000-memory.dmp

          memory/2876-23-0x0000000074580000-0x0000000074D30000-memory.dmp

          memory/2876-3-0x0000000006070000-0x0000000006614000-memory.dmp

          memory/2876-2-0x0000000005A10000-0x0000000005AAC000-memory.dmp

          memory/2876-1-0x0000000074580000-0x0000000074D30000-memory.dmp