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Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    19/08/2024, 05:25

General

  • Target

    a9c23eddb8ccb3008ef6dcf7500dc833_JaffaCakes118.exe

  • Size

    680KB

  • MD5

    a9c23eddb8ccb3008ef6dcf7500dc833

  • SHA1

    14440dd1c9dcb5ee0aafacd4fa6e4457ac8bf1da

  • SHA256

    70fa8d9e6b819e18967b7e4d8a7fc50030800c9427d66b657dda837a0a434052

  • SHA512

    415d65be32ee25d5b1e1676e005bbb315aced8597e11038c5bcaae0541b15715767bc72f7a22e17eacc0eb1436a04204c6df51344df34a1ad1a2b3b51d65403e

  • SSDEEP

    12288:qClephVMo7IYJAB++2RrxRAjbeNC2v+clES+vYOqH:fOhKpYyB/MrxRAZMES+b+

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 2 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 12 IoCs
  • Loads dropped DLL 14 IoCs
  • UPX packed file 30 IoCs

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

  • Unexpected DNS network traffic destination 5 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Adds Run key to start application 2 TTPs 54 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 6 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
    • Suspicious use of UnmapMainImage
    PID:332
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Modifies WinLogon for persistence
    PID:1200
    • C:\Users\Admin\AppData\Local\Temp\a9c23eddb8ccb3008ef6dcf7500dc833_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\a9c23eddb8ccb3008ef6dcf7500dc833_JaffaCakes118.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1316
      • C:\Users\Admin\GFW6ssUz.exe
        C:\Users\Admin\GFW6ssUz.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:2980
        • C:\Users\Admin\fueulo.exe
          "C:\Users\Admin\fueulo.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:2824
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c tasklist&&del GFW6ssUz.exe
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2728
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            5⤵
            • Enumerates processes with tasklist
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:2820
      • C:\Users\Admin\2kaq.exe
        C:\Users\Admin\2kaq.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2740
        • C:\Users\Admin\2kaq.exe
          "C:\Users\Admin\2kaq.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:2616
        • C:\Users\Admin\2kaq.exe
          "C:\Users\Admin\2kaq.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:3068
        • C:\Users\Admin\2kaq.exe
          "C:\Users\Admin\2kaq.exe"
          4⤵
          • Executes dropped EXE
          • Maps connected drives based on registry
          • Suspicious behavior: EnumeratesProcesses
          PID:2968
        • C:\Users\Admin\2kaq.exe
          "C:\Users\Admin\2kaq.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:2480
        • C:\Users\Admin\2kaq.exe
          "C:\Users\Admin\2kaq.exe"
          4⤵
          • Executes dropped EXE
          PID:3012
      • C:\Users\Admin\3kaq.exe
        C:\Users\Admin\3kaq.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2860
        • C:\Users\Admin\AppData\Local\9a095c00\X
          *0*bc*8798b1e3*31.193.3.240:53
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:1956
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2160
      • C:\Users\Admin\4kaq.exe
        C:\Users\Admin\4kaq.exe
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:2436
        • C:\Users\Admin\AppData\Roaming\xenkerstomwirgypnhftjktacwhcfbrc2\svcnost.exe
          "C:\Users\Admin\AppData\Roaming\xenkerstomwirgypnhftjktacwhcfbrc2\svcnost.exe"
          4⤵
          • Modifies firewall policy service
          • Loads dropped DLL
          • Drops desktop.ini file(s)
          • System Location Discovery: System Language Discovery
          • Modifies Internet Explorer settings
          PID:916
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c tasklist&&del a9c23eddb8ccb3008ef6dcf7500dc833_JaffaCakes118.exe
        3⤵
        • Deletes itself
        • System Location Discovery: System Language Discovery
        PID:764
        • C:\Windows\SysWOW64\tasklist.exe
          tasklist
          4⤵
          • Enumerates processes with tasklist
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:1268
  • C:\Windows\system32\DllHost.exe
    C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
    1⤵
      PID:2352

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\4kaq.exe

      Filesize

      120KB

      MD5

      ee3508d5206de400e5792c826ae71aae

      SHA1

      b448132f604b7e886343b911cc56371a7f251c04

      SHA256

      f6226f935ea3d5ecc4be3ccf6a59caff31ed3e6bd35c5d26fbe3906b4379b35d

      SHA512

      233f72bf8cf5d72b7f7c09bf546220fa0c34511330349fa28ef4c746b19f59696b5e515a7d345862430979800be354ab954aa55f79747a83d601abdf32bd24fb

    • C:\Windows\system32\consrv.dll

      Filesize

      29KB

      MD5

      1149c1bd71248a9d170e4568fb08df30

      SHA1

      6f77f183d65709901f476c5d6eebaed060a495f9

      SHA256

      c2dcf387cb4d218f50463338291e7db38afbdab9aab88fc54e7f9283df1792d1

      SHA512

      9e6eac8facb23b38552d37c9f3cb24098f871d2885ecb3630fcd0199c5600b12a42f095f9fbeb90e5632496491d46fd987660cdda695e92dc386bd482d3ff459

    • \Users\Admin\2kaq.exe

      Filesize

      132KB

      MD5

      d7dbb57f65cb963477a8fa11714ec0be

      SHA1

      756d29032644973b9f48980a1e30448206811119

      SHA256

      94242fda567e2b4dc0be9d4ca5370ff0ddee2d25751dd191c3fed995837c10ec

      SHA512

      1db3577abd73c8c8667da426faedf63ad9c7a75462cbeac0be19a525690baaa9f1d8446d3b804abbf24550d73cbefecf6c77c224539e8dd5db37f34f7e975fdc

    • \Users\Admin\3kaq.exe

      Filesize

      277KB

      MD5

      00b72668c42555c6d9e3cee383730fc0

      SHA1

      509a7c39baf2b9a46813c641cca687b37e244d5a

      SHA256

      baaacce5c3f18154d4925ec6568ccf66f4ab9ee5477bd0faf44f08d9397641dd

      SHA512

      1bfa5cd6081a5e8556b452cf4741831da829fcc9e2b51c77c92a4fdacfa1b934d14bc049f8185be09b1447664f55956f69e7fd16a868c9655eb32f9b9ef02e78

    • \Users\Admin\AppData\Local\9a095c00\X

      Filesize

      38KB

      MD5

      72de2dadaf875e2fd7614e100419033c

      SHA1

      5f17c5330e91a42daa9ff24c4aa602bd1a72bf6e

      SHA256

      c44993768a4dc5a58ddbfc9cb05ce2a7d3a0a56be45643d70a72bcf811b6c381

      SHA512

      e2520a53326a7d3b056e65d0cf60e9d823ffb34ca026cdddc7ea3a714f8396c53c37e13a887fc86a7dd7076c97fdfad53c3f5a68342ebc1bdec948c76bda8df3

    • \Users\Admin\AppData\Roaming\desktop.ini

      Filesize

      9KB

      MD5

      4a27242b307c6a836993353035fafc16

      SHA1

      5fea7a41b8f9071848108015d8a952e6f944eea0

      SHA256

      02fd93f64bda51e1e2991184cac13f077d509712e462c9e44be9cf8e22c06de1

      SHA512

      35e9c87642b82df2bf0a9312bb0e9abfb98282db1e34032a4d0150d82c5e2f2e13150ddc896f1e954f02288a1e696a4306ee595b94b1e404c6ec17bac64c44be

    • \Users\Admin\AppData\Roaming\ntuser.dat

      Filesize

      54KB

      MD5

      7e8e966927e04a35aec644602b8a9e05

      SHA1

      d201b0b41e8701818d60ddbf9f334332a512c4da

      SHA256

      46f18d9fbf63f378d86962cbf24f5ce57ce257555acd4effdcc41c1e2f1adf5c

      SHA512

      246777c79129a5076b71ca5d3f7e59b06d344f6b5e771892ae8ee68c0b5af9207cd1868b1336b49e6a84665309ad379a33ec6c8e72d7ce41de72153637921a51

    • \Users\Admin\GFW6ssUz.exe

      Filesize

      312KB

      MD5

      d0250c92bd9e6c62c0c8227ea7bc0df4

      SHA1

      9a9fd691422b105c5e008764b980d1568c2df957

      SHA256

      ee113e2ee5cd0d396af0e79c2390d059355d24e426886bbacda44d7f39a28007

      SHA512

      99ab659dd56fabf0bd488f754cc7d1b166e1727b5a742d4262062946b5aa79577499fff55e434b6dbe05efa11e9ce2ce58cf68f30e29d9b5580e20de4e974200

    • \Users\Admin\fueulo.exe

      Filesize

      312KB

      MD5

      7b6ec3a7e0906f6916fabb75a48c6cd8

      SHA1

      6f5f5fec1a534814b24db66b8ad439dace4bc612

      SHA256

      0414c2bed04912e28dff1d835ff1f0338967eadf0529f57c8225ff9cb70708c9

      SHA512

      af74f7abe7c1bee4975388b5375789f6ebd30038470a46256c2317064a465d40faad19cf5d645724ade78bd4e057648f543bd73e09c43c7f02f66f26181720ef

    • \systemroot\assembly\tmp\{1B372133-BFFA-4dba-9CCF-5474BED6A9F6}

      Filesize

      2KB

      MD5

      3a7482ba479bf81871823c500396d7f4

      SHA1

      4bfe4b0745895cce782cc0a90a8cfe9ba1cc3ca0

      SHA256

      93fd7ce6c6fc5480976b1053b6fe569c589ff5e32ed7731074b827a220b7877e

      SHA512

      4841c45264b44e15a96a438fe6c6ab94b56fa59f67b09f75b2c74850af88df7f5b9b2071d490eb1da4132cfe190f2ab716d8d86e9f80e87d1663bc48213f7cf3

    • memory/332-116-0x00000000022F0000-0x00000000022FB000-memory.dmp

      Filesize

      44KB

    • memory/916-181-0x0000000000400000-0x0000000000B19000-memory.dmp

      Filesize

      7.1MB

    • memory/916-159-0x0000000000400000-0x0000000000B19000-memory.dmp

      Filesize

      7.1MB

    • memory/1200-102-0x0000000002AF0000-0x0000000002AF6000-memory.dmp

      Filesize

      24KB

    • memory/1200-132-0x0000000002D60000-0x0000000002D6B000-memory.dmp

      Filesize

      44KB

    • memory/1200-133-0x0000000002DF0000-0x0000000002DFB000-memory.dmp

      Filesize

      44KB

    • memory/1200-124-0x0000000002D60000-0x0000000002D6B000-memory.dmp

      Filesize

      44KB

    • memory/1200-128-0x0000000002D60000-0x0000000002D6B000-memory.dmp

      Filesize

      44KB

    • memory/1200-106-0x0000000002AF0000-0x0000000002AF6000-memory.dmp

      Filesize

      24KB

    • memory/1200-110-0x0000000002AF0000-0x0000000002AF6000-memory.dmp

      Filesize

      24KB

    • memory/1316-152-0x0000000002990000-0x00000000030A9000-memory.dmp

      Filesize

      7.1MB

    • memory/1316-149-0x0000000002990000-0x00000000030A9000-memory.dmp

      Filesize

      7.1MB

    • memory/2436-150-0x0000000000400000-0x0000000000B19000-memory.dmp

      Filesize

      7.1MB

    • memory/2436-160-0x0000000002720000-0x0000000002E39000-memory.dmp

      Filesize

      7.1MB

    • memory/2436-166-0x0000000000400000-0x0000000000B19000-memory.dmp

      Filesize

      7.1MB

    • memory/2480-86-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2480-76-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2480-151-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2480-88-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2480-83-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2480-78-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2616-42-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2616-135-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2616-61-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2616-45-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2616-55-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2616-38-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2616-40-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2616-44-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2968-85-0x0000000000400000-0x0000000000427000-memory.dmp

      Filesize

      156KB

    • memory/2968-67-0x0000000000400000-0x0000000000427000-memory.dmp

      Filesize

      156KB

    • memory/2968-69-0x0000000000400000-0x0000000000427000-memory.dmp

      Filesize

      156KB

    • memory/2968-72-0x0000000000400000-0x0000000000427000-memory.dmp

      Filesize

      156KB

    • memory/2968-65-0x0000000000400000-0x0000000000427000-memory.dmp

      Filesize

      156KB

    • memory/2968-81-0x0000000000400000-0x0000000000427000-memory.dmp

      Filesize

      156KB

    • memory/2968-143-0x0000000000400000-0x0000000000427000-memory.dmp

      Filesize

      156KB

    • memory/3068-48-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

    • memory/3068-58-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

    • memory/3068-59-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

    • memory/3068-50-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

    • memory/3068-62-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

    • memory/3068-54-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB

    • memory/3068-46-0x0000000000400000-0x000000000040E000-memory.dmp

      Filesize

      56KB