Analysis

  • max time kernel
    94s
  • max time network
    112s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-12-2024 22:01

General

  • Target

    5c86ed4d75334f33e539af77769b2d9f2bf55a412686064bf1110106c83d9d3e.dll

  • Size

    124KB

  • MD5

    4605906f8cdd177f6c2b0ddd8b4cdb52

  • SHA1

    189fbe9a496a57cf8feb8b2ba84e2cffe9f1488a

  • SHA256

    5c86ed4d75334f33e539af77769b2d9f2bf55a412686064bf1110106c83d9d3e

  • SHA512

    0841da0d3a10f7784951f7ca0c0c0490445a08ee3c0bc710f4d800bc9caaebb6fde39d4406d5f82b8e5cab7a69ba769029a5eac41dda2c49d212bed322d3ccea

  • SSDEEP

    3072:Sj6tEosM7VmKeZ88Dkj7oR2SqwKJXtf5DGyVBQwIY6X47:SMcvZNDkYR2SqwK/AyVBQ9RI7

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\5c86ed4d75334f33e539af77769b2d9f2bf55a412686064bf1110106c83d9d3e.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2668
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\5c86ed4d75334f33e539af77769b2d9f2bf55a412686064bf1110106c83d9d3e.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3840
      • 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:2400
        • 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:3492
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3492 CREDAT:17410 /prefetch:2
            5⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2476

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

    73d8dd7eaa8896905e31f1960f51ece1

    SHA1

    164e031603e75d95091220c5ff0d695547f6d3ae

    SHA256

    9ff75ab638fe252bd0d04aea3f0ce38270ffc8df5db9399f9ea45aaef196dddc

    SHA512

    4879585482992d7ea3ee02775b74592b06daab32a63dc7700dd4da40c45a524f3bcfc2beff928a85563f09ad0438be5b3e458bc3d0cd08ad146d416fec014a04

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

    Filesize

    404B

    MD5

    51a21e13256312a9105906fdc9d54c74

    SHA1

    6faa3a4f1c0e1fa7ea769fc6484008a6f718542c

    SHA256

    d2a2b38cdcdbe7e57401b205ec2b79deb48f19bc6a4703aa203807854438d7d6

    SHA512

    ae0e166040fd43b11a09163f4bf0da1f57466126038ea8335652bcd4e1e509e8e0d0dfdeae55b702804e23c649820f02af0f76c55ba2be9b1b2723dc3a236e32

  • 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

    88KB

    MD5

    fe76e62c9c90a4bea8f2c464dc867719

    SHA1

    f0935e8b6c22dea5c6e9d4127f5c10363deba541

    SHA256

    5705c47b229c893f67741480ed5e3bce60597b2bb0dd755fb1f499a23888d7d6

    SHA512

    7d6d5bfb10df493ffea7132807be417b5a283d34a1cd49042390b2b927691fd53ecf8eee459c727844395f34e4230b2cd85b38b7fb7df0a3638b244d0c3f6394

  • memory/2400-16-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/2400-14-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/2400-12-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/2400-15-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/2400-18-0x00000000778D2000-0x00000000778D3000-memory.dmp

    Filesize

    4KB

  • memory/2400-17-0x0000000000060000-0x0000000000061000-memory.dmp

    Filesize

    4KB

  • memory/2400-4-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/2400-7-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/2400-11-0x0000000000690000-0x0000000000691000-memory.dmp

    Filesize

    4KB

  • memory/2400-19-0x00000000778D2000-0x00000000778D3000-memory.dmp

    Filesize

    4KB

  • memory/2400-10-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/2400-9-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/2400-21-0x0000000000401000-0x0000000000405000-memory.dmp

    Filesize

    16KB

  • memory/2400-8-0x0000000000400000-0x000000000041A000-memory.dmp

    Filesize

    104KB

  • memory/2400-6-0x0000000000401000-0x0000000000405000-memory.dmp

    Filesize

    16KB

  • memory/3840-1-0x0000000010000000-0x000000001001F000-memory.dmp

    Filesize

    124KB