Analysis

  • max time kernel
    117s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    01/06/2024, 04:06

General

  • Target
    89515f74c1d8c23eb21ba68d9e4e819e_JaffaCakes118.exe
  • Size 500KB
  • Sample240601-ephx7aaa24
  • SHA256 131ba2d94b368a5bcde967fd1188fa4b469dd0ffcde1e2bf94d8989e62c28a5f
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\89515f74c1d8c23eb21ba68d9e4e819e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\89515f74c1d8c23eb21ba68d9e4e819e_JaffaCakes118.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Loads dropped DLL
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1688
    • C:\Users\Admin\AppData\Local\Temp\n4920\s4920.exe
      "C:\Users\Admin\AppData\Local\Temp\n4920\s4920.exe" ins.exe /h f35b8.api.socdn.com /t 53a9c4b4561ca35c4f8b4cbf /u cf7d65aa-9fa4-11e3-8a58-80c16e6f498c /e 12909150 /v "C:\Users\Admin\AppData\Local\Temp\89515f74c1d8c23eb21ba68d9e4e819e_JaffaCakes118.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2948

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
        • Size 70KB
        • SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
        • MD5 SHA1 SHA512 SSDEEP

        Tar8F8A.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Tar8F8A.tmp
        • Size 181KB
        • SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
        • MD5 SHA1 SHA512 SSDEEP

        s4920.exe

        • Path \Users\Admin\AppData\Local\Temp\n4920\s4920.exe
        • Size 286KB
        • SHA256 9343341db998236ead9f7bc0847747fb92cc90cc4709e7b6ff4c2ff6809dd1bb
        • MD5 SHA1 SHA512 SSDEEP

        memory/2948-14-0x000007FEF5F5E000-0x000007FEF5F5F000-memory.dmp

        memory/2948-22-0x000007FEF5CA0000-0x000007FEF663D000-memory.dmp

        memory/2948-75-0x0000000000480000-0x000000000048A000-memory.dmp

        memory/2948-76-0x000007FEF5CA0000-0x000007FEF663D000-memory.dmp