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Analysis

  • max time kernel
    129s
  • max time network
    176s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    04/12/2022, 02:25

General

  • Target

    3c126c4594bbdda9f2b0f3b0d8bac09b09b2ec298830229dac8f6509e6cb5961.dll

  • Size

    252KB

  • MD5

    af6a70fb5d24feb8c64b057af6ea7330

  • SHA1

    2883fc3538bf3444b2e80892f92b2957e193b49b

  • SHA256

    3c126c4594bbdda9f2b0f3b0d8bac09b09b2ec298830229dac8f6509e6cb5961

  • SHA512

    d2835590b9e5d7d0ba7c9b3a0de988631e6213222973b7da594c6ec9cfe27f8c7cb1f3d3e99006688122ce635873d3152f71c71b1ca0a6b0531114750239b941

  • SSDEEP

    3072:+2UxPvVKNiNz1a2JRC+Tq/Kbo/ykbE+tsxGWpsdYSyaYQrVSyW8/AaTCtaXHpXp:lGvQ4Nx9RHTVbedbEknSh0xn/AaTWaXH

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 5 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 55 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\3c126c4594bbdda9f2b0f3b0d8bac09b09b2ec298830229dac8f6509e6cb5961.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1632
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\3c126c4594bbdda9f2b0f3b0d8bac09b09b2ec298830229dac8f6509e6cb5961.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1736
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:964
        • 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:1184
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1184 CREDAT:275457 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:748
        • 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:692
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:692 CREDAT:275457 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:488

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{88D01F11-7630-11ED-A70D-7AAB9C3024C2}.dat

    Filesize

    3KB

    MD5

    986ca3fc8b5459ce9d3b101a22604ea2

    SHA1

    b52c26e847ec5e3bc9544ccf5851cee179ebc24a

    SHA256

    763092ed2d883a10f8813fe56b38402e723a2a4c2c562ef626c41b688082f2c5

    SHA512

    c344b2a5d0c1a066f38ddbc76bf402d9ba838aa983b48c0879d957386f47ea928ad49e3e3d9d4bb5da57b169be9bca785d15cae562145aecabe2cc14d132803a

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{88D04621-7630-11ED-A70D-7AAB9C3024C2}.dat

    Filesize

    5KB

    MD5

    db853aeb0eebe86faaedd83ab1a25863

    SHA1

    3560a62477ee41dad8af89eaad59daafb4f5596e

    SHA256

    825772d2d1f09f24d043cd7b2402ac78d64a43e7007aba7306763178e4de0182

    SHA512

    693e92034d95b5be8c6bab90c1ad196788db3d7c47ce1a273cb793d70032287d6dac7e09a4238ee17b6148f3fe729f56535639a7ffe900176e1d019718ad0c54

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\1Q2OCO31.txt

    Filesize

    608B

    MD5

    e3ddadfd1a1db02a845a46b601409df5

    SHA1

    e91c62467b10764ce05d0a650aadb66674d46315

    SHA256

    9fa066c5c9f1a2c78aaecf9ecc5b72c6afcefb11779512dcdab0107cb9c6f96c

    SHA512

    ac77e397038a0c1a6c957428e3e239712bf014946d379b37400a418883776087764eeb6a4b5264c9fe94aa6f5680311476820799e4cc0ad9073fa7130c02eddb

  • C:\Windows\SysWOW64\rundll32mgr.exe

    Filesize

    153KB

    MD5

    6c6400ba9cf5a1d34fbbb3e2fe57ce3f

    SHA1

    a6f8636c626b47354407aae3ec592ba8a6ad57ef

    SHA256

    c33f882e364f65322678d03dbbf00efea35be735c9fdaa74e79f1c3d04191b3a

    SHA512

    9760704bf0fb51f1da47db1c127d4b312971764866796cbe1fb2989328170bd91e6258f90d1dc3e766cbd61f877cb3b37fd8c30f62dccafd4f1b822bc8255343

  • \Windows\SysWOW64\rundll32mgr.exe

    Filesize

    153KB

    MD5

    6c6400ba9cf5a1d34fbbb3e2fe57ce3f

    SHA1

    a6f8636c626b47354407aae3ec592ba8a6ad57ef

    SHA256

    c33f882e364f65322678d03dbbf00efea35be735c9fdaa74e79f1c3d04191b3a

    SHA512

    9760704bf0fb51f1da47db1c127d4b312971764866796cbe1fb2989328170bd91e6258f90d1dc3e766cbd61f877cb3b37fd8c30f62dccafd4f1b822bc8255343

  • \Windows\SysWOW64\rundll32mgr.exe

    Filesize

    153KB

    MD5

    6c6400ba9cf5a1d34fbbb3e2fe57ce3f

    SHA1

    a6f8636c626b47354407aae3ec592ba8a6ad57ef

    SHA256

    c33f882e364f65322678d03dbbf00efea35be735c9fdaa74e79f1c3d04191b3a

    SHA512

    9760704bf0fb51f1da47db1c127d4b312971764866796cbe1fb2989328170bd91e6258f90d1dc3e766cbd61f877cb3b37fd8c30f62dccafd4f1b822bc8255343

  • memory/964-60-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/964-63-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1736-55-0x00000000757B1000-0x00000000757B3000-memory.dmp

    Filesize

    8KB