Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-12-2024 13:00

General

  • Target

    bd81c9b4e808986568e82f507e8a5b3c_JaffaCakes118.exe

  • Size

    134KB

  • MD5

    bd81c9b4e808986568e82f507e8a5b3c

  • SHA1

    139b69fac6cace200cf8bbf0617ebff85bfa295f

  • SHA256

    ebd1e9e477918163f3c7ba846f5de93da3cd32bacbd0405317e3053469870888

  • SHA512

    3cde64c726d11a3c4645ad73ae58a4abc93f0e9ca7730da14ad4b486d69999d91108e861e5accac347eed2fda51d3d8c6f26aed45269be820d16ca52c1c96779

  • SSDEEP

    3072:vv/AGWxl0vhtBNwTYYgioDlwbtVBCN1xRWy1MaiyzUhAv2EdK:X/ApshwaiilwTIN1xRSaJUhi7dK

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Metasploit family
  • Modifies firewall policy service 3 TTPs 8 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 10 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3520
      • C:\Users\Admin\AppData\Local\Temp\bd81c9b4e808986568e82f507e8a5b3c_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\bd81c9b4e808986568e82f507e8a5b3c_JaffaCakes118.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:4768
        • C:\Users\Admin\AppData\Local\Temp\bd81c9b4e808986568e82f507e8a5b3c_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\bd81c9b4e808986568e82f507e8a5b3c_JaffaCakes118.exe"
          3⤵
          • Checks computer location settings
          • Maps connected drives based on registry
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2184
          • C:\Windows\SysWOW64\igfxhc32.exe
            "C:\Windows\SysWOW64\igfxhc32.exe" C:\Users\Admin\AppData\Local\Temp\BD81C9~1.EXE
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2232
            • C:\Windows\SysWOW64\igfxhc32.exe
              "C:\Windows\SysWOW64\igfxhc32.exe" C:\Users\Admin\AppData\Local\Temp\BD81C9~1.EXE
              5⤵
              • Modifies firewall policy service
              • Deletes itself
              • Executes dropped EXE
              • Adds Run key to start application
              • Maps connected drives based on registry
              • Drops file in System32 directory
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4492

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\igfxhc32.exe

      Filesize

      134KB

      MD5

      bd81c9b4e808986568e82f507e8a5b3c

      SHA1

      139b69fac6cace200cf8bbf0617ebff85bfa295f

      SHA256

      ebd1e9e477918163f3c7ba846f5de93da3cd32bacbd0405317e3053469870888

      SHA512

      3cde64c726d11a3c4645ad73ae58a4abc93f0e9ca7730da14ad4b486d69999d91108e861e5accac347eed2fda51d3d8c6f26aed45269be820d16ca52c1c96779

    • memory/2184-0-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2184-2-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2184-3-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2184-4-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2184-42-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2184-45-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2184-46-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

    • memory/4492-44-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/4492-47-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/4492-48-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB