Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    18-12-2024 12:14

General

  • Target

    fb7f296bec3cdc8ec079f808a7011fe4_JaffaCakes118.exe

  • Size

    631KB

  • MD5

    fb7f296bec3cdc8ec079f808a7011fe4

  • SHA1

    30aa9f4978ddf727e86e5c4b381cc61f568f34b9

  • SHA256

    b35e0f5a1b842a947ffd577ee4521e22612785bacf6dad81c803e7019156797e

  • SHA512

    cc08dd452f57957cbf00cf1f2975fdb39edd7edf84e080876ad192170a53ca4d1d6d7f7bc05e19c7629bb689830dda889ba84140e216f2586b8890043b505b59

  • SSDEEP

    12288:UK/xyYT2o0k3vSycsL4YAfY9vNiQNe+91BgHT9/o30i8fKtbc:+puv8QLeEfeh/o3n8Stb

Malware Config

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Darkcomet family
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 2 IoCs

    When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • Checks processor information in registry 2 TTPs 8 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • NTFS ADS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 49 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 62 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fb7f296bec3cdc8ec079f808a7011fe4_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fb7f296bec3cdc8ec079f808a7011fe4_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2600
    • C:\Users\Admin\AppData\Local\Temp\fb7f296bec3cdc8ec079f808a7011fe4_JaffaCakes118.exe
      fb7f296bec3cdc8ec079f808a7011fe4_JaffaCakes118.exe
      2⤵
        PID:2456
      • C:\Users\Admin\AppData\Local\Temp\fb7f296bec3cdc8ec079f808a7011fe4_JaffaCakes118.exe
        fb7f296bec3cdc8ec079f808a7011fe4_JaffaCakes118.exe
        2⤵
        • Checks BIOS information in registry
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2480
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /noconfig @"C:\Users\Admin\AppData\Local\Temp\zlpefrew.cmdline"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2764
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
          C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESB710.tmp" "C:\Users\Admin\AppData\Local\Temp\vbcB70F.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          PID:2360
      • C:\Windows\SysWOW64\cmd.exe
        "cmd"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2916
      • C:\Windows\SysWOW64\cmd.exe
        "cmd"
        2⤵
        • Subvert Trust Controls: Mark-of-the-Web Bypass
        • System Location Discovery: System Language Discovery
        • NTFS ADS
        PID:3016
      • C:\Windows\SysWOW64\cmd.exe
        "cmd"
        2⤵
        • Subvert Trust Controls: Mark-of-the-Web Bypass
        • System Location Discovery: System Language Discovery
        • NTFS ADS
        PID:2264
      • C:\Users\Admin\AppData\Local\Temp\Microsoft\Protect\Credentials\wmpnetvk.exe
        "C:\Users\Admin\AppData\Local\Temp\Microsoft\Protect\Credentials\wmpnetvk.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2888
        • C:\Users\Admin\AppData\Local\Temp\Microsoft\Protect\Credentials\rundll.exe
          "C:\Users\Admin\AppData\Local\Temp\Microsoft\Protect\Credentials\rundll.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2780
          • C:\Users\Admin\AppData\Local\Temp\Microsoft\Protect\Credentials\rundll.exe
            rundll.exe
            4⤵
              PID:2728
            • C:\Users\Admin\AppData\Local\Temp\Microsoft\Protect\Credentials\rundll.exe
              rundll.exe
              4⤵
              • Checks BIOS information in registry
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Checks processor information in registry
              • Enumerates system info in registry
              • Suspicious use of AdjustPrivilegeToken
              PID:2736

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\Microsoft\Protect\Credentials\wmpnetvk.exe

        Filesize

        7KB

        MD5

        18e4d1c9d5882e72bede73b632e29fe9

        SHA1

        f5dc4ddec336218dd424ec414415db4f160f4792

        SHA256

        38434dd87dbb3db3df1ea9e7801bd726a8a178e0b2ac5141ba52cdbcaf1f1f36

        SHA512

        43b705917a4ca03381776130e770bb4913a366ac79384d5d3f9c4bf60005938f91634723ff8b3d907797184cbf1dd8920cf36ddf391ee3154f1015694a8b8e1c

      • C:\Users\Admin\AppData\Local\Temp\Microsoft\Protect\Credentials\wmpnetvk.exe:ZONE.identifier

        Filesize

        27B

        MD5

        130a75a932a2fe57bfea6a65b88da8f6

        SHA1

        b66d7530d150d45c0a390bb3c2cd4ca4fc404d1c

        SHA256

        f2b79cae559d6772afc1c2ed9468988178f8b6833d5028a15dea73ce47d0196e

        SHA512

        6cd147c6f3af95803b7b0898e97ec2ed374c1f56a487b50e3d22003a67cec26a6fa12a3920b1b5624bde156f9601469ae3c7b7354fa8cf37be76c84121767eed

      • C:\Users\Admin\AppData\Local\Temp\Microsoft\Protect\Credentials\xCocaine.txt

        Filesize

        631KB

        MD5

        fb7f296bec3cdc8ec079f808a7011fe4

        SHA1

        30aa9f4978ddf727e86e5c4b381cc61f568f34b9

        SHA256

        b35e0f5a1b842a947ffd577ee4521e22612785bacf6dad81c803e7019156797e

        SHA512

        cc08dd452f57957cbf00cf1f2975fdb39edd7edf84e080876ad192170a53ca4d1d6d7f7bc05e19c7629bb689830dda889ba84140e216f2586b8890043b505b59

      • C:\Users\Admin\AppData\Local\Temp\RESB710.tmp

        Filesize

        1KB

        MD5

        59da22cec5e72334437752744875ca83

        SHA1

        36da0518fabb3599b9f6e89ba2225eccea5a6caf

        SHA256

        248e9df634f3089b00c1383d71caae296e075319c2ffd1884381db33b8d56c05

        SHA512

        3686dc24865a5d6f6606bf8b71156e69324e1aae007d09bcba44478fcd6f4678ca0b1eb75661ad0bb8824a7f78dc6431a2f936dfe8a0b3606034d2e8ed2c135b

      • C:\Users\Admin\AppData\Local\Temp\vbcB70F.tmp

        Filesize

        652B

        MD5

        4b2d458e7dd9a506cc9fc9e6db3c1051

        SHA1

        b149eabc7625d5aa1fa71a542901618558e4ea5e

        SHA256

        82bb2e03bfb28c5918a6f62e107aeca29ba6a1f7347eb2c114aac34dd0dc4ca7

        SHA512

        3c6cd9fcdbc895ab579925a0fa5bac64d742d496bc07fcb3eae4d4375a5b2b9ae8ce5c24ea8d74a8fc02a05c959df77f58cd41f4a34bdf7d09e501394cc0baac

      • C:\Users\Admin\AppData\Local\Temp\zlpefrew.0.vb

        Filesize

        1KB

        MD5

        29622516e4c9be1feb693b51ddfaa6d0

        SHA1

        7fd2f564a95f14101b4047d2728beedde60abb6f

        SHA256

        92db35abc01755d4e309ae6d956fe58d93fb3614cc9b10036ff4e473e872de15

        SHA512

        cf487e2d84996a48931244f5616cd24a8544baeb543b1775ebd2824acc8e40458608d20bbc6bcd58afed4150bea183b08e23ea5e631ee66914a8ef5bb5cad29d

      • C:\Users\Admin\AppData\Local\Temp\zlpefrew.cmdline

        Filesize

        314B

        MD5

        a97a6f8aad75db00d3a441672fc01b11

        SHA1

        6d2a38d2ab252d3d3cc0f72ebad59ae298c7ecbe

        SHA256

        6d62a7122b2a2a34b4f16d0db487dfc0c52fd8e2be86e47538348277b703aca3

        SHA512

        3002dd7b45d94a750fd855169fcdf79e3e0f84b6131f54f796effcd570c1e907c3fc3d0025414f51aaa527b933eb6e28e956bf6a1c12cbf513c0d7a3e91379f4

      • memory/2480-9-0x0000000013140000-0x00000000131F6000-memory.dmp

        Filesize

        728KB

      • memory/2480-20-0x0000000013140000-0x00000000131F6000-memory.dmp

        Filesize

        728KB

      • memory/2480-7-0x0000000013140000-0x00000000131F6000-memory.dmp

        Filesize

        728KB

      • memory/2480-6-0x0000000013140000-0x00000000131F6000-memory.dmp

        Filesize

        728KB

      • memory/2480-5-0x0000000013140000-0x00000000131F6000-memory.dmp

        Filesize

        728KB

      • memory/2480-4-0x0000000013140000-0x00000000131F6000-memory.dmp

        Filesize

        728KB

      • memory/2480-3-0x0000000013140000-0x00000000131F6000-memory.dmp

        Filesize

        728KB

      • memory/2480-15-0x0000000013140000-0x00000000131F6000-memory.dmp

        Filesize

        728KB

      • memory/2480-17-0x0000000000210000-0x0000000000211000-memory.dmp

        Filesize

        4KB

      • memory/2480-22-0x0000000013140000-0x00000000131F6000-memory.dmp

        Filesize

        728KB

      • memory/2480-21-0x0000000013140000-0x00000000131F6000-memory.dmp

        Filesize

        728KB

      • memory/2480-8-0x0000000013140000-0x00000000131F6000-memory.dmp

        Filesize

        728KB

      • memory/2480-13-0x0000000013140000-0x00000000131F6000-memory.dmp

        Filesize

        728KB

      • memory/2480-14-0x0000000013140000-0x00000000131F6000-memory.dmp

        Filesize

        728KB

      • memory/2480-10-0x0000000013140000-0x00000000131F6000-memory.dmp

        Filesize

        728KB

      • memory/2480-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2600-0-0x0000000074C71000-0x0000000074C72000-memory.dmp

        Filesize

        4KB

      • memory/2600-2-0x0000000074C70000-0x000000007521B000-memory.dmp

        Filesize

        5.7MB

      • memory/2600-1-0x0000000074C70000-0x000000007521B000-memory.dmp

        Filesize

        5.7MB

      • memory/2600-62-0x0000000074C70000-0x000000007521B000-memory.dmp

        Filesize

        5.7MB

      • memory/2736-57-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2764-25-0x00000000002E0000-0x0000000000320000-memory.dmp

        Filesize

        256KB