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Analysis

  • max time kernel
    140s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2023, 21:21

General

  • Target

    2023-08-26_f44297f2034aff40dddd6ed8521d105c_mafia_ramnit_JC.exe

  • Size

    3.5MB

  • MD5

    f44297f2034aff40dddd6ed8521d105c

  • SHA1

    7740082dec547abef66254f26acfff83cc89011d

  • SHA256

    79dfb888ef76df83ccc2ab9627cffa592127c11bafefd3d6c469fa2d609baefb

  • SHA512

    c3c64c84e89d03511d40654513ccdee1acaf70c8ad0e50a1818a05f203a27e394a9454b6f7ce561068724ae2389f7e025f29e9383d57240859d85198f300a940

  • SSDEEP

    98304:+1fX1YJdXWdlfmkfldqgVMgDnwo+kUNWvI3npO9Dz7vYzLEEvBZ0qwmy7mpmm9m4:+90dXwgSkpWfDz7vYzLEYBZ0qwmy7mpH

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Executes dropped EXE 2 IoCs
  • UPX packed file 7 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 39 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2023-08-26_f44297f2034aff40dddd6ed8521d105c_mafia_ramnit_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\2023-08-26_f44297f2034aff40dddd6ed8521d105c_mafia_ramnit_JC.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4380
    • C:\Users\Admin\AppData\Local\Temp\2023-08-26_f44297f2034aff40dddd6ed8521d105c_mafia_ramnit_JCSrv.exe
      C:\Users\Admin\AppData\Local\Temp\2023-08-26_f44297f2034aff40dddd6ed8521d105c_mafia_ramnit_JCSrv.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:2024
      • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
        "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1768
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2284
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2284 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:5060

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Microsoft\DesktopLayer.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Program Files (x86)\Microsoft\DesktopLayer.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Users\Admin\AppData\LocalLow\Microsoft\Internet Explorer\Services\search_{0633EE93-D776-472f-A0FF-E1416B8B2E3A}.ico

    Filesize

    4KB

    MD5

    da597791be3b6e732f0bc8b20e38ee62

    SHA1

    1125c45d285c360542027d7554a5c442288974de

    SHA256

    5b2c34b3c4e8dd898b664dba6c3786e2ff9869eff55d673aa48361f11325ed07

    SHA512

    d8dc8358727590a1ed74dc70356aedc0499552c2dc0cd4f7a01853dd85ceb3aead5fbdc7c75d7da36db6af2448ce5abdff64cebdca3533ecad953c061a9b338e

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\7H3JZN74\suggestions[1].en-US

    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

  • C:\Users\Admin\AppData\Local\Temp\2023-08-26_f44297f2034aff40dddd6ed8521d105c_mafia_ramnit_JCSrv.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Users\Admin\AppData\Local\Temp\2023-08-26_f44297f2034aff40dddd6ed8521d105c_mafia_ramnit_JCSrv.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • memory/1768-16-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1768-17-0x0000000077A12000-0x0000000077A13000-memory.dmp

    Filesize

    4KB

  • memory/1768-15-0x0000000002050000-0x0000000002051000-memory.dmp

    Filesize

    4KB

  • memory/1768-13-0x0000000001F00000-0x0000000001F0F000-memory.dmp

    Filesize

    60KB

  • memory/1768-22-0x0000000077A12000-0x0000000077A13000-memory.dmp

    Filesize

    4KB

  • memory/2024-8-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2024-5-0x0000000000660000-0x000000000066F000-memory.dmp

    Filesize

    60KB

  • memory/2024-4-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/4380-0-0x0000000000CC0000-0x0000000001055000-memory.dmp

    Filesize

    3.6MB

  • memory/4380-21-0x0000000000CC0000-0x0000000001055000-memory.dmp

    Filesize

    3.6MB