Analysis

  • max time kernel
    153s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-06-2024 10:49

General

  • Target

    054bca9b3135d12ce00c4575a94c7c07_JaffaCakes118.exe

  • Size

    256KB

  • MD5

    054bca9b3135d12ce00c4575a94c7c07

  • SHA1

    4c2215ffa79dab32b6e90aa13a7f94b103cda32f

  • SHA256

    96c37b8dd61b1c3d6cd8fa04c6bf2e4d806d4a02bcb31d19f4133632dffe34c2

  • SHA512

    ee63a89d6610352ea508b5cbcb9edb4d7e189a9717b3afc3608f816e94a13eae5006c79c7281f8679f234c56d3d9a0f3112fb8e600612cf8f4610d90adccf9c0

  • SSDEEP

    6144:NtmdbOsHCU8TCOXlUS9f6mLTjr58l88oKtJ+w3Uff2diRj:/ISsHCU8T5f9imLndx8bJ+eUfuO

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.

  • 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
  • UPX packed file 11 IoCs

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

  • 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
  • Enumerates physical storage devices 1 TTPs

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

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

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3188
      • C:\Users\Admin\AppData\Local\Temp\054bca9b3135d12ce00c4575a94c7c07_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\054bca9b3135d12ce00c4575a94c7c07_JaffaCakes118.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2428
        • C:\Users\Admin\AppData\Local\Temp\054bca9b3135d12ce00c4575a94c7c07_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\054bca9b3135d12ce00c4575a94c7c07_JaffaCakes118.exe"
          3⤵
          • Checks computer location settings
          • Maps connected drives based on registry
          • Drops file in System32 directory
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1868
          • C:\Windows\SysWOW64\wmpdk86.exe
            "C:\Windows\SysWOW64\wmpdk86.exe" C:\Users\Admin\AppData\Local\Temp\054BCA~1.EXE
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4584
            • C:\Windows\SysWOW64\wmpdk86.exe
              "C:\Windows\SysWOW64\wmpdk86.exe" C:\Users\Admin\AppData\Local\Temp\054BCA~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
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4756
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4072 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3212

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Persistence

      Create or Modify System Process

      1
      T1543

      Windows Service

      1
      T1543.003

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Privilege Escalation

      Create or Modify System Process

      1
      T1543

      Windows Service

      1
      T1543.003

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Defense Evasion

      Modify Registry

      2
      T1112

      Impair Defenses

      1
      T1562

      Disable or Modify System Firewall

      1
      T1562.004

      Discovery

      Query Registry

      2
      T1012

      System Information Discovery

      3
      T1082

      Peripheral Device Discovery

      1
      T1120

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Windows\SysWOW64\wmpdk86.exe
        Filesize

        256KB

        MD5

        054bca9b3135d12ce00c4575a94c7c07

        SHA1

        4c2215ffa79dab32b6e90aa13a7f94b103cda32f

        SHA256

        96c37b8dd61b1c3d6cd8fa04c6bf2e4d806d4a02bcb31d19f4133632dffe34c2

        SHA512

        ee63a89d6610352ea508b5cbcb9edb4d7e189a9717b3afc3608f816e94a13eae5006c79c7281f8679f234c56d3d9a0f3112fb8e600612cf8f4610d90adccf9c0

      • memory/1868-0-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/1868-2-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/1868-3-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/1868-4-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/1868-7-0x0000000000400000-0x0000000000448000-memory.dmp
        Filesize

        288KB

      • memory/1868-34-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/1868-47-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/1868-48-0x0000000000400000-0x0000000000448000-memory.dmp
        Filesize

        288KB

      • memory/4756-46-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/4756-49-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/4756-50-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB