Overview

overview

10

Static

static

3

JaffaCakes...b2.exe

windows7-x64

10

JaffaCakes...b2.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-01-2025 11:59

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General

  • Target

    JaffaCakes118_79924ed49d9002f4c03258f2082217b2.exe

  • Size

    840KB

  • MD5

    79924ed49d9002f4c03258f2082217b2

  • SHA1

    1a1b0cdab5e7a4590ea7c1bb09787cf0e7df0a1a

  • SHA256

    b251a293f115ea7131c40e839d3b38d64f6499fd5f1c9c64bbc9c0a068167de1

  • SHA512

    1e8796bf633fb62390cd937892d89721287ac493116f3569d60dc0b0da4b24c5aceadfe40672a5f0f2518b4bd349bc8862b6e7821c3260ce7278c5ee864a9039

  • SSDEEP

    12288:dCpyvXFPTfnCvX66h/NYJ9nDW6FApNg3gZqdDUtOuBiMc/j6KRVrxn7Nl4+GtlrL:Ik9P7nCvX6MNYLIbgYJ3chra+GbrL

Score
10/10
cycbotbackdoordiscoveryevasionpersistenceratupx

Malware Config

Signatures

  • Cycbot

    Cycbot is a backdoor and trojan written in C++..

    backdoorratcycbot
  • Cycbot family
    cycbot
  • Detects Cycbot payload 5 IoCs

    Cycbot is a backdoor and trojan written in C++.

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
    evasion
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 9 IoCs
  • Adds Run key to start application 2 TTPs 54 IoCs
    persistence
  • Enumerates processes with tasklist 1 TTPs 2 IoCs
    discovery
  • Suspicious use of SetThreadContext 4 IoCs
  • UPX packed file 5 IoCs

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

    upx
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 13 IoCs

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

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_79924ed49d9002f4c03258f2082217b2.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_79924ed49d9002f4c03258f2082217b2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4280
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_79924ed49d9002f4c03258f2082217b2.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_79924ed49d9002f4c03258f2082217b2.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3324
      • C:\Users\Admin\d3WQGzd9.exe
        C:\Users\Admin\d3WQGzd9.exe
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Checks computer location settings
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4112
        • C:\Users\Admin\ybdeer.exe
          "C:\Users\Admin\ybdeer.exe"
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          PID:848
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c tasklist&&del d3WQGzd9.exe
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4032
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            5⤵
            • Enumerates processes with tasklist
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:4640
      • C:\Users\Admin\awhost.exe
        C:\Users\Admin\awhost.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:232
        • C:\Windows\SysWOW64\svchost.exe
          "C:\Windows\system32\svchost.exe"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4368
      • C:\Users\Admin\bwhost.exe
        C:\Users\Admin\bwhost.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4084
        • C:\Users\Admin\bwhost.exe
          "C:\Users\Admin\bwhost.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1552
          • C:\Windows\explorer.exe
            000000D0*
            5⤵
              PID:2652
        • C:\Users\Admin\cwhost.exe
          C:\Users\Admin\cwhost.exe
          3⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Program Files directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1380
          • C:\Users\Admin\cwhost.exe
            C:\Users\Admin\cwhost.exe startC:\Users\Admin\AppData\Roaming\conhost.exe%C:\Users\Admin\AppData\Roaming
            4⤵
            • Executes dropped EXE
            PID:4928
          • C:\Users\Admin\cwhost.exe
            C:\Users\Admin\cwhost.exe startC:\Users\Admin\AppData\Local\Temp\dwm.exe%C:\Users\Admin\AppData\Local\Temp
            4⤵
            • Executes dropped EXE
            PID:3824
        • C:\Users\Admin\dwhost.exe
          C:\Users\Admin\dwhost.exe
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:3076
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c tasklist&&del JaffaCakes118_79924ed49d9002f4c03258f2082217b2.exe
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1900
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:4000

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\3B6C.C24
      Filesize

      996B

      MD5

      fa9d88975e8184f1190e60dbd3ab5c32

      SHA1

      e5614e25c5eb88be521cf7d36450628c163581e8

      SHA256

      eb0c9ba0e8e8c6c1b0c66b19738aaa8b716dc01fb6466843cf1cb0fd9e3af397

      SHA512

      585bebdbc04316a1106a667cc686d5e77dc80f719f8efd98dca9bf5168bc94ca0e1c5199c1f355ae17a70ea3d896c0d0add8bd5ae929f16dccdf4143ba99dbef

      Download Submit

    • C:\Users\Admin\AppData\Roaming\3B6C.C24
      Filesize

      1KB

      MD5

      26625c8e8c9a00ebb0e3ef3257813774

      SHA1

      a5d827cd5fc7bd3d0f2d54b51fc8cb7ea6a2a0de

      SHA256

      661af7e71a83c5487609af327d65f4262bb3a940c5f4685082a27f3f35fb02fe

      SHA512

      30f7553c7f8eca7407b811c9e9c1dcc5f78bd2dbda4d821a817cf6a6e352b60583618e4da481ce8b194c85dc31ff62ebcd71d397d3dd4ed63508b1408037f1e0

      Download Submit

    • C:\Users\Admin\AppData\Roaming\3B6C.C24
      Filesize

      600B

      MD5

      ef93f86d82a1ec3be044fa00d9c9362f

      SHA1

      160cfc3d7e9df4ecb4db2fb1cf4153325fed1e2f

      SHA256

      ddb130d21f89abf33e1562f371290f0d912029801679b2897212927e214c47fe

      SHA512

      06e14f4413353a5f97e2ff650b8d23b07c7e3cda298ae01e1f1f37e190adf12b688513411501de3a7619da01b3c3b8e670ea1ba6081a20912b7dded216d67022

      Download Submit

    • C:\Users\Admin\awhost.exe
      Filesize

      68KB

      MD5

      b0406fa1f1b4a471ce4c1521708d1ef3

      SHA1

      bd2bb68d92c8b6af7604d52e336152bc48ea1227

      SHA256

      ef2abd7d609bba1f141b3e1dc6a79d937fe68e37d51b093fc29e0d800bf6fa29

      SHA512

      07bec70b25b083919a91de4930842ba8b264e869d0251134cbfecbc9227be704c70600c9db878eee08f7d1fa1df6c848577b632f810b014d62ace26b961bb2cc

      Download Submit

    • C:\Users\Admin\bwhost.exe
      Filesize

      136KB

      MD5

      acaf206a193335d7983a46a8c9e18fea

      SHA1

      3a33b8148c23887c2b9edc2d0dbec3d83398069b

      SHA256

      8aa2fb2e061fc4a30160f912db3f1ea75189d16d922f82aba6538e92c4df47ca

      SHA512

      846622efa83273ce9f40f38953077eca4a6f064923a8cf9b202d19cac9fac4c8e58007f2531fafafb6b408787d0ed23a3349b49794d0311736efa35bba6fba10

      Download Submit

    • C:\Users\Admin\cwhost.exe
      Filesize

      170KB

      MD5

      40d9607cb66da11b9adfec5b93b8b311

      SHA1

      55bf463cd5c0c90ba92935ef81ae47ab3bc5fea6

      SHA256

      033e60eebb966b3bcfbe27fa3e99e8f393970f320b5cc25cb16517869eb5f3e6

      SHA512

      e764053de1c2444e61e638e67e91cf7d9d968df4d60b8bcc3f5ddfc317edb1f14e950d096d451fa372a699fc886125066f4e2f2de171641433ce1e066aa58078

      Download Submit

    • C:\Users\Admin\d3WQGzd9.exe
      Filesize

      364KB

      MD5

      db406d87e556a0008c18429ecf3cc93a

      SHA1

      3a1b7a87080bf1d78fca904bd7515833bbd380e8

      SHA256

      2712b4f742a53c7d4b9a55c8f760447a26925c10a3ca6c10b84dea49482a2768

      SHA512

      e0da870b0c8f8955277b9227ef3de2b4d3e45d37986ac9a9b445e24506f265020f071365a2135b1e2892aaa64c3b7477d6c4a57598f3601655d74d92d6222354

      Download Submit

    • C:\Users\Admin\dwhost.exe
      Filesize

      24KB

      MD5

      aaa893d374547f20f7fdd7c3b6c56b36

      SHA1

      f7aab7bd60af5e948b71abcccbcfb1d62f6580ff

      SHA256

      17c950477ffd3e28c4135c4cc5711589415129c7b21c4af1e89deaf68f043d03

      SHA512

      491b88e809425dd20dc9052fe45ab101ccb803c186a27d6502bf1cbefa8d903d51f72c02e604ec346f77b85c4324daa036341a42fcba0a96e5c69781ebfecb31

      Download Submit

    • C:\Users\Admin\ybdeer.exe
      Filesize

      364KB

      MD5

      40f78db8a6c06f80b7e96a584f85e459

      SHA1

      44a31cfc826ae513f8a63f706b0ff2b9cae61f91

      SHA256

      8568d190ddb4160132146c59818bd6c9f250835caeca2ceaa5204460b3a32d65

      SHA512

      d82e8886a7b683ff77aa0e8910e7b81cfde866c9c80635dc7080021c5b4bbab4ecfe7fe664f3de4f30275bdfbbb2843a0846482ad6f21716ff4b3d7d4fb73f57

      Download Submit

    • memory/1380-278-0x0000000000400000-0x0000000000449000-memory.dmp

      Filesize

      292KB

      Download

    • memory/1380-274-0x0000000000400000-0x0000000000449000-memory.dmp

      Filesize

      292KB

      Download

    • memory/1380-146-0x0000000000400000-0x0000000000449000-memory.dmp

      Filesize

      292KB

      Download

    • memory/1552-64-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

      Download

    • memory/1552-62-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

      Download

    • memory/3324-85-0x0000000000400000-0x00000000004C4000-memory.dmp

      Filesize

      784KB

      Download

    • memory/3324-2-0x0000000000400000-0x00000000004C4000-memory.dmp

      Filesize

      784KB

      Download

    • memory/3324-5-0x0000000000400000-0x00000000004C4000-memory.dmp

      Filesize

      784KB

      Download

    • memory/3324-276-0x0000000000400000-0x00000000004C4000-memory.dmp

      Filesize

      784KB

      Download

    • memory/3824-148-0x0000000000400000-0x0000000000449000-memory.dmp

      Filesize

      292KB

      Download

    • memory/4084-67-0x0000000000400000-0x0000000000422000-memory.dmp

      Filesize

      136KB

      Download

    • memory/4368-54-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

      Download

    • memory/4368-53-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

      Download

    • memory/4368-55-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

      Download

    • memory/4928-83-0x0000000000400000-0x0000000000449000-memory.dmp

      Filesize

      292KB

      Download