Analysis

  • max time kernel
    150s
  • max time network
    77s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    03-01-2025 20:33

General

  • Target

    JaffaCakes118_6f6da6318514b8ec2fac667def3f907a.exe

  • Size

    840KB

  • MD5

    6f6da6318514b8ec2fac667def3f907a

  • SHA1

    41fd39391f136797ba03a2a3725047e3acd5ff0a

  • SHA256

    cacd53a54de4c112c3633cd02f3f55f1793b867080abffa76239a58142ddec84

  • SHA512

    8cf4b099d75115b54900c27a941905389641f9247f437d20953f6cdba540047b1e4399c325a1b6008b854c26b4cb8bc723e41b4be9e73479196f7f86d0ade634

  • SSDEEP

    12288:bCpyvXFPTfnCvX66h/NYJ9nDW6FApNg3gZqdDUtOuBiMc/j6KRVrxn7Nl4+GtlrL:ek9P7nCvX6MNYLIbgYJ3chra+GbrL

Malware Config

Signatures

  • Cycbot

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

  • Cycbot family
  • Detects Cycbot payload 3 IoCs

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

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 10 IoCs
  • Loads dropped DLL 14 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 54 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • UPX packed file 3 IoCs

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

  • 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 15 IoCs

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

  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\csrss.exe
    %SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
    1⤵
    • Executes dropped EXE
    • Drops desktop.ini file(s)
    • Suspicious use of UnmapMainImage
    PID:332
  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f6da6318514b8ec2fac667def3f907a.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f6da6318514b8ec2fac667def3f907a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f6da6318514b8ec2fac667def3f907a.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f6da6318514b8ec2fac667def3f907a.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2596
      • C:\Users\Admin\d3WQGzd9.exe
        C:\Users\Admin\d3WQGzd9.exe
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2936
        • C:\Users\Admin\xuidaa.exe
          "C:\Users\Admin\xuidaa.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:3064
        • 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:2480
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            5⤵
            • Enumerates processes with tasklist
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:2832
      • 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:2872
        • C:\Windows\SysWOW64\svchost.exe
          "C:\Windows\system32\svchost.exe"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2540
      • 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:1192
        • 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:1516
          • C:\Windows\explorer.exe
            0000003C*
            5⤵
            • Modifies registry class
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:3024
      • C:\Users\Admin\cwhost.exe
        C:\Users\Admin\cwhost.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        PID:1108
        • 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
          • System Location Discovery: System Language Discovery
          PID:764
        • 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
          • System Location Discovery: System Language Discovery
          PID:1064
      • 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:2924
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c tasklist&&del JaffaCakes118_6f6da6318514b8ec2fac667def3f907a.exe
        3⤵
        • Deletes itself
        • System Location Discovery: System Language Discovery
        PID:2664
        • C:\Windows\SysWOW64\tasklist.exe
          tasklist
          4⤵
          • Enumerates processes with tasklist
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:2560
  • C:\Windows\system32\DllHost.exe
    C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
    1⤵
    • Loads dropped DLL
    PID:1956
  • C:\Windows\system32\wbem\wmiprvse.exe
    C:\Windows\system32\wbem\wmiprvse.exe -Embedding
    1⤵
      PID:1632

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\83FD.D1C

      Filesize

      600B

      MD5

      4e22cd96aa173155bce8339ba105de8c

      SHA1

      1a1d781a87a5cc0a1d8a3b0ff0226689a42fd50d

      SHA256

      caf020154b04e8d091e18631a837a4c757dbd33f5a6dfa61961110c1d49f57b5

      SHA512

      7c91eb7eb8ae8af61f7ba75f8c54b89fb9cd79a667c764748eb1067f61633fbfba6e2a3329d323da8faf4f4c4b4857a7e62974ec9bd51aaebd791b52fa19a022

    • C:\Users\Admin\AppData\Roaming\83FD.D1C

      Filesize

      996B

      MD5

      d2a86d919fbe3cdc07efc52b3134cc8b

      SHA1

      66a0121868e6390c456a25c5eebd2af359d98122

      SHA256

      168f62d02d8eb552133cc7f09175eedf171a9242c7484c19b88d81df4155a11e

      SHA512

      acfc7c62f1aebbab8693051065a608f09fe8012e78d317602869f259e311837e852cddfb73c53781d386058fe8c9ae62afc014fedbd34b67f9d8ee2f40c0a54c

    • C:\Users\Admin\AppData\Roaming\83FD.D1C

      Filesize

      1KB

      MD5

      5d0c2cb00ff6acf6f962474bae47ab74

      SHA1

      50bcd259f8cec185344e22b4f8497f49fe942e2a

      SHA256

      6e6cd00bb8d4b906c5ebe381d0a891470c0b57e435290d6a9c6a119b88caca10

      SHA512

      6c160d33abd718ef79dff3e4d87eecb5bd958343fef286398856a0678ddc8aaa03877dfb8f3f3832f8ae494122b1698641e9aba389ee44321ad692958b1fdfdb

    • C:\Windows\system32\consrv.DLL

      Filesize

      53KB

      MD5

      68689b2e7472e2cfb3f39da8a59505d9

      SHA1

      5be15784ab1193dc13ac24ec1efcabded5fe2df4

      SHA256

      f304eb2cf6479a4fb36fef81c6df4d0225e251002e8f06f26ee196210bf3d168

      SHA512

      269999061cd54b23b92d385689682e687ae9030bc5d26d79dd5e99f72fa4b4eef41f5a7b555325bd558771db92e2feb8a67fb40c87223be9e23ccb498b3bbc88

    • \Users\Admin\awhost.exe

      Filesize

      68KB

      MD5

      b0406fa1f1b4a471ce4c1521708d1ef3

      SHA1

      bd2bb68d92c8b6af7604d52e336152bc48ea1227

      SHA256

      ef2abd7d609bba1f141b3e1dc6a79d937fe68e37d51b093fc29e0d800bf6fa29

      SHA512

      07bec70b25b083919a91de4930842ba8b264e869d0251134cbfecbc9227be704c70600c9db878eee08f7d1fa1df6c848577b632f810b014d62ace26b961bb2cc

    • \Users\Admin\bwhost.exe

      Filesize

      136KB

      MD5

      acaf206a193335d7983a46a8c9e18fea

      SHA1

      3a33b8148c23887c2b9edc2d0dbec3d83398069b

      SHA256

      8aa2fb2e061fc4a30160f912db3f1ea75189d16d922f82aba6538e92c4df47ca

      SHA512

      846622efa83273ce9f40f38953077eca4a6f064923a8cf9b202d19cac9fac4c8e58007f2531fafafb6b408787d0ed23a3349b49794d0311736efa35bba6fba10

    • \Users\Admin\cwhost.exe

      Filesize

      170KB

      MD5

      40d9607cb66da11b9adfec5b93b8b311

      SHA1

      55bf463cd5c0c90ba92935ef81ae47ab3bc5fea6

      SHA256

      033e60eebb966b3bcfbe27fa3e99e8f393970f320b5cc25cb16517869eb5f3e6

      SHA512

      e764053de1c2444e61e638e67e91cf7d9d968df4d60b8bcc3f5ddfc317edb1f14e950d096d451fa372a699fc886125066f4e2f2de171641433ce1e066aa58078

    • \Users\Admin\d3WQGzd9.exe

      Filesize

      364KB

      MD5

      db406d87e556a0008c18429ecf3cc93a

      SHA1

      3a1b7a87080bf1d78fca904bd7515833bbd380e8

      SHA256

      2712b4f742a53c7d4b9a55c8f760447a26925c10a3ca6c10b84dea49482a2768

      SHA512

      e0da870b0c8f8955277b9227ef3de2b4d3e45d37986ac9a9b445e24506f265020f071365a2135b1e2892aaa64c3b7477d6c4a57598f3601655d74d92d6222354

    • \Users\Admin\dwhost.exe

      Filesize

      24KB

      MD5

      aaa893d374547f20f7fdd7c3b6c56b36

      SHA1

      f7aab7bd60af5e948b71abcccbcfb1d62f6580ff

      SHA256

      17c950477ffd3e28c4135c4cc5711589415129c7b21c4af1e89deaf68f043d03

      SHA512

      491b88e809425dd20dc9052fe45ab101ccb803c186a27d6502bf1cbefa8d903d51f72c02e604ec346f77b85c4324daa036341a42fcba0a96e5c69781ebfecb31

    • \Users\Admin\xuidaa.exe

      Filesize

      364KB

      MD5

      b363da4ba0bba0ad2b805ac7aefeb966

      SHA1

      a3298d78eeb1c4e285340668e146dd2ad6d2b3b5

      SHA256

      0bcc75af56b5705a1e8c70a820a93e24c03e8b98a1498dc8a92395f5e5b9b6e7

      SHA512

      48bc90d9d8d94c8f36ea625fe95fd55f70988dca24e17ccfbf2fb101e5fe909738fa93f5a41b69b52f62849ab5e48742b4dbc7876762acf0ea686c7ea44ac3d9

    • \Windows\assembly\GAC_32\Desktop.ini

      Filesize

      4KB

      MD5

      ff7d5ec20bf73c02317e7a740fffe018

      SHA1

      365ac8cfe5b939854cc1c341caf051bcc45f9372

      SHA256

      1e230847d7034f5ab3bf010f569315e00673859af0574fc9f915636ed905779a

      SHA512

      30854c0d703fd7c6cbc0769d9be4125baa2577ec529d5e48177a434685b66752fd79c50f0321324e23eeb985738f403347748afefae7d8a3bfad388a5b512a44

    • \Windows\assembly\GAC_64\Desktop.ini

      Filesize

      5KB

      MD5

      3e7a118b119428247edfc5d5ef3761bc

      SHA1

      140e4cb00107678160411f016c4c17611580a209

      SHA256

      97c19f4103a16798202e50a501375d0bf3d7ec1bb654dda230337e85b01b1ec5

      SHA512

      b0e27a4d7aa62f937f275b9f413f75857846ae670bf3aed6e55c1db865485fda89e33dcdffa02ae2ab25f48d5f63f869232f9e6d69f9cdc8a5c93f39de09a925

    • memory/332-120-0x0000000000AB0000-0x0000000000AC2000-memory.dmp

      Filesize

      72KB

    • memory/764-138-0x0000000000400000-0x0000000000449000-memory.dmp

      Filesize

      292KB

    • memory/1064-208-0x0000000000400000-0x0000000000449000-memory.dmp

      Filesize

      292KB

    • memory/1108-143-0x0000000000400000-0x0000000000449000-memory.dmp

      Filesize

      292KB

    • memory/1516-91-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1516-88-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1516-94-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1516-84-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1516-80-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1516-82-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1516-86-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2540-68-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2540-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2540-57-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2540-53-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2540-67-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2540-55-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2540-66-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2540-59-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2540-61-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2540-63-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2596-6-0x0000000000400000-0x00000000004C4000-memory.dmp

      Filesize

      784KB

    • memory/2596-139-0x0000000000400000-0x00000000004C4000-memory.dmp

      Filesize

      784KB

    • memory/2596-4-0x0000000000400000-0x00000000004C4000-memory.dmp

      Filesize

      784KB

    • memory/2596-3-0x0000000000400000-0x00000000004C4000-memory.dmp

      Filesize

      784KB

    • memory/2596-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2596-12-0x0000000000400000-0x00000000004C4000-memory.dmp

      Filesize

      784KB

    • memory/2596-14-0x0000000000400000-0x00000000004C4000-memory.dmp

      Filesize

      784KB

    • memory/2596-335-0x0000000000400000-0x00000000004C4000-memory.dmp

      Filesize

      784KB

    • memory/3024-107-0x00000000001B0000-0x00000000001C9000-memory.dmp

      Filesize

      100KB

    • memory/3024-102-0x00000000001B0000-0x00000000001C9000-memory.dmp

      Filesize

      100KB

    • memory/3024-97-0x00000000001B0000-0x00000000001C9000-memory.dmp

      Filesize

      100KB