Analysis

  • max time kernel
    96s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 07:34

General

  • Target

    fd1a6384883f2c2cd586656b504e36d948bc40c47701877b25e0d7aa0cef135c.dll

  • Size

    587KB

  • MD5

    15979045343f876be259fa8082b133c4

  • SHA1

    ff74fc79ffc9c380cdccbefe3fe1791f446389ec

  • SHA256

    fd1a6384883f2c2cd586656b504e36d948bc40c47701877b25e0d7aa0cef135c

  • SHA512

    b251e50d5dd63c3c433b5160f0d266c12aa670636fca9a35796b5cff18340cdd602ef8871f2cfd10f9a4d96fb0fcf54e34f9d5202bec626f4cc052a48c00144e

  • SSDEEP

    12288:y4SMpJcv7N0Zx4OXkXZ1g4KNWRPSqZ6bHo6k:dJczN4x4OCZPKQRubIx

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 53 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\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\fd1a6384883f2c2cd586656b504e36d948bc40c47701877b25e0d7aa0cef135c.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1280
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\fd1a6384883f2c2cd586656b504e36d948bc40c47701877b25e0d7aa0cef135c.dll
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:608
      • C:\Windows\SysWOW64\regsvr32mgr.exe
        C:\Windows\SysWOW64\regsvr32mgr.exe
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1888
        • 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:1448
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1448 CREDAT:275457 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1444
        • 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:1496
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1496 CREDAT:275457 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1400

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{3D3E31E1-70AE-11ED-93F0-EAF6071D98F9}.dat

    Filesize

    5KB

    MD5

    532036adde3e751c688fd0d0dc548636

    SHA1

    22703038842b49e372cb73350f555a2956249753

    SHA256

    1170666dd6f4b2480779ff7496316e034be837c3fe4d8c57892d1041fb5be30d

    SHA512

    6e60daa182eb2c64b7d1366b8b2185e4c59468f246f664da476f395cdf5a661b658c6694a05f5e95cbd3ea6f0e9e7401176973a2524591ff09e9abc39b9e5f2b

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{3D3E58F1-70AE-11ED-93F0-EAF6071D98F9}.dat

    Filesize

    3KB

    MD5

    5e32c935057a31e223384b6e5ba238da

    SHA1

    476e884296b1d2a6bc7e417fb36e9aa8a7ad73d5

    SHA256

    6c4bb6ac0c15ad50294d3a1d1ca9756dc3e6098a38f81dece1902c525d9b6f4e

    SHA512

    9d291ec5a384741be0bb0c6f27f79a729e9bae5fdb9612dd3db66bea86749937fa0fd725058b03c43c626fdc0a4cca42633b37a28e6b3efbf2c51ed4efaf682e

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

    Filesize

    603B

    MD5

    ab62a029c38574633ab94fde3a7ac6c2

    SHA1

    8a394c77c608144f0b046e2611ddd1df45390e46

    SHA256

    af74597aa5858bd36b782fd883a82ce3ec542e7d3887c54a95a429b083c7c103

    SHA512

    cd4a6f2d7732aeb041e3b8a2901bd4e97bb71c7db8d9e6c90013095ddff8ba80bf0bfeb06e2b2520fe62132239058b6b2392e7203d79fa1ae876f772507a3c94

  • C:\Windows\SysWOW64\regsvr32mgr.exe

    Filesize

    104KB

    MD5

    84b7783804fa7506672a409e9899c6be

    SHA1

    2da8a6e9c04662564e18cdf98f73e224a5662533

    SHA256

    b26a93c17ac6a412c6c191aa6a1543537f3185fe813c24153c6dec736fbad4ef

    SHA512

    8a867296b05f45dd79ab64b11b6cc0cc8fad835b2f5ba9b8469981cc9b3e15c91f98b688cbe7addfab7ea2bd55a1d475fc853c004afb24be1b5691f8183c897c

  • \Windows\SysWOW64\regsvr32mgr.exe

    Filesize

    104KB

    MD5

    84b7783804fa7506672a409e9899c6be

    SHA1

    2da8a6e9c04662564e18cdf98f73e224a5662533

    SHA256

    b26a93c17ac6a412c6c191aa6a1543537f3185fe813c24153c6dec736fbad4ef

    SHA512

    8a867296b05f45dd79ab64b11b6cc0cc8fad835b2f5ba9b8469981cc9b3e15c91f98b688cbe7addfab7ea2bd55a1d475fc853c004afb24be1b5691f8183c897c

  • \Windows\SysWOW64\regsvr32mgr.exe

    Filesize

    104KB

    MD5

    84b7783804fa7506672a409e9899c6be

    SHA1

    2da8a6e9c04662564e18cdf98f73e224a5662533

    SHA256

    b26a93c17ac6a412c6c191aa6a1543537f3185fe813c24153c6dec736fbad4ef

    SHA512

    8a867296b05f45dd79ab64b11b6cc0cc8fad835b2f5ba9b8469981cc9b3e15c91f98b688cbe7addfab7ea2bd55a1d475fc853c004afb24be1b5691f8183c897c

  • memory/608-55-0x0000000000000000-mapping.dmp

  • memory/608-56-0x0000000075811000-0x0000000075813000-memory.dmp

    Filesize

    8KB

  • memory/1280-54-0x000007FEFB931000-0x000007FEFB933000-memory.dmp

    Filesize

    8KB

  • memory/1888-59-0x0000000000000000-mapping.dmp

  • memory/1888-63-0x0000000000400000-0x0000000000456000-memory.dmp

    Filesize

    344KB

  • memory/1888-64-0x0000000000400000-0x0000000000456000-memory.dmp

    Filesize

    344KB