Analysis

  • max time kernel
    93s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-11-2024 11:41

General

  • Target

    8d00bed40b10a680562c04cde88ad58f17b4b89bbbcc0ac9c8da40a5f759c843N.dll

  • Size

    742KB

  • MD5

    ebb4f4c26ea1992c3ed9b6c3fbfb2560

  • SHA1

    3ceae30d41cbcdb11069a68df674ca696cd4dc5e

  • SHA256

    8d00bed40b10a680562c04cde88ad58f17b4b89bbbcc0ac9c8da40a5f759c843

  • SHA512

    11d3f18c6986c09728936bd27c266324b5ccb812ae0711460126cf4ec12b0f3f8e035e105e0e81133f0c13906a8fc00b8440016d2e668d4dbe2ebb5a014a183d

  • SSDEEP

    12288:Azb9rMfc+CKUQyUmjtc4euuzPrs9pGp8hunWoopooK9kwPmwf0rbyZ:Azb1MlCKUQyUmjtczu6Prs9pgWoopooE

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 8 IoCs

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

  • 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\8d00bed40b10a680562c04cde88ad58f17b4b89bbbcc0ac9c8da40a5f759c843N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2836
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\8d00bed40b10a680562c04cde88ad58f17b4b89bbbcc0ac9c8da40a5f759c843N.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4832
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:768
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4132
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4132 CREDAT:17410 /prefetch:2
            5⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4084

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    471B

    MD5

    526c40c41732e5b3d962f781fbbae134

    SHA1

    baa42198e292fdb90b0e2b290da206b650ae8bd5

    SHA256

    f4a1f2b28c9eeac4af29803c6803961aab329ca1753a70ad157618c299b7ea48

    SHA512

    d2a161bdedc2354dea4ffc62d62d0a6625c2ff93d2254cf038badeb0c2f9da5b5afaa5be0e647c8342d2b0976018f3570ee0aeb0a7f158d4562fa9c9024a07c0

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

    Filesize

    404B

    MD5

    cd12f36d9c40723affd21789e8226e50

    SHA1

    b05e248e01108ad698377c404d79769c6352f109

    SHA256

    ef106cca107d9a02dd5f52224dcbcf02ba32ebf35f1ec71648489391e0d5ea69

    SHA512

    1e962805659cf48e2f207b1651c8809983bc1fc9e9f0c5b741eaef29150c148ee38b342d28d641ba2da4bd14edda8077da29fc893ed435b76530f819cecf6000

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DQ67RYHS\suggestions[1].en-US

    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

  • C:\Windows\SysWOW64\rundll32mgr.exe

    Filesize

    84KB

    MD5

    2b8bb9f077a564234e057b9c715f9a5b

    SHA1

    55abc544d7c7cfe45649f1967ade8d1c10fba2cb

    SHA256

    f34b80a1632165c7bc83b8301255c5b4000d54863df05de92388481fa5e03224

    SHA512

    7049cf1cb8f19053ec61724d9b72d18ee1898887e92c9a19d54a686c4908cc9b67595294e1adabf18f760516656dcd6a278a1c5950584a778c7ee5c984d2ebf9

  • memory/768-11-0x0000000000840000-0x0000000000841000-memory.dmp

    Filesize

    4KB

  • memory/768-9-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/768-18-0x0000000077062000-0x0000000077063000-memory.dmp

    Filesize

    4KB

  • memory/768-17-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/768-16-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/768-15-0x0000000000420000-0x0000000000421000-memory.dmp

    Filesize

    4KB

  • memory/768-4-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/768-10-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/768-21-0x0000000077062000-0x0000000077063000-memory.dmp

    Filesize

    4KB

  • memory/768-14-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/768-13-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/768-22-0x0000000000401000-0x0000000000405000-memory.dmp

    Filesize

    16KB

  • memory/768-7-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/768-6-0x0000000000401000-0x0000000000405000-memory.dmp

    Filesize

    16KB

  • memory/768-12-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/768-8-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/4832-0-0x0000000005000000-0x00000000050BF000-memory.dmp

    Filesize

    764KB