Resubmissions

26-09-2024 05:40

240926-gcxlxstckb 10

25-06-2024 16:11

240625-tm4jfasgjk 10

Analysis

  • max time kernel
    93s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-09-2024 05:40

General

  • Target

    ICONMO~1Srv.exe

  • Size

    55KB

  • MD5

    ff5e1f27193ce51eec318714ef038bef

  • SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

  • SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

  • SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • SSDEEP

    1536:Q+hzRsibKplyXTq8OGRnsPFG+RODTb7MXL5uXZnzE:bROzoTq0+RO7IwnY

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 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 30 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ICONMO~1Srv.exe
    "C:\Users\Admin\AppData\Local\Temp\ICONMO~1Srv.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4228
    • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3244
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe"
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4052
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4052 CREDAT:17410 /prefetch:2
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:4800

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:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    471B

    MD5

    bf94c1f95b86846942364d11a17851b4

    SHA1

    63700cc94ae31ecd3bb028332dcdf9a0964ed406

    SHA256

    66481be25e3d5754ba4c58aa4cceab5cf66f4c82b3bb45d82d6980822efb075d

    SHA512

    e7a4f19100de4abf24c3cc89e913ca1f5d81b64b6bcad8a377a4d540e45f65b805aafc0ab78c5c2ce7b6b02ad51393272d20996c5d188e4ceabc40c4b9a310cf

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    404B

    MD5

    ab2975238d648fa2dd1ac049109fdf83

    SHA1

    59f5ec544c31dea31a264bda267fc520a70dbe9a

    SHA256

    998d7b68575abb2cad257d9cde62ee28936832d78ea85e7d840accf0a089737d

    SHA512

    a520c42aa9f593e107f4dfcf83c65a4e3a0c8907b633b204305e67077cb47d1dd98ff35f79a3a43e1383f5ab6bab2202b167d40c6bb7f48979e168da9c27ac3a

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\NUB8HZ4Z\suggestions[1].en-US

    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

  • memory/3244-8-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/3244-9-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/3244-10-0x0000000000450000-0x0000000000451000-memory.dmp

    Filesize

    4KB

  • memory/3244-11-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/4228-0-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/4228-1-0x00000000005C0000-0x00000000005CF000-memory.dmp

    Filesize

    60KB

  • memory/4228-2-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB