Analysis

  • max time kernel
    185s
  • max time network
    189s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-12-2022 02:30

General

  • Target

    19531291bea3045b5ac2c601ac963abc931fba82f32d2c286ab41986d4c2a316.dll

  • Size

    232KB

  • MD5

    d5acca72ed4f11c6fe6927adf5c36490

  • SHA1

    10fe93cddce772367514521abad584c54f6a89ac

  • SHA256

    19531291bea3045b5ac2c601ac963abc931fba82f32d2c286ab41986d4c2a316

  • SHA512

    b3c50657815e5574f5c5158a185e80b60ef8ada03aa1e50847c29a1ba6449eff4d4a44935668b9e3180a56d6ffb3f4b80b4eb33aa0b2bfb8fd8e9e72ed72e16b

  • SSDEEP

    6144:/yG3zvrzG/UFFvL17I8LcbjZALOlwfPzLM6an8isBOM8BKb:T3sUFFvL17I8LcbjUMH8isBOrAb

Malware Config

Signatures

  • Ramnit

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

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

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

  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\19531291bea3045b5ac2c601ac963abc931fba82f32d2c286ab41986d4c2a316.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3784
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\19531291bea3045b5ac2c601ac963abc931fba82f32d2c286ab41986d4c2a316.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:4956
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:3472
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3472 -s 10176
          4⤵
          • Program crash
          PID:2200
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3472 -ip 3472
    1⤵
      PID:1264

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\~TMFC47.tmp

      Filesize

      1.6MB

      MD5

      4f3387277ccbd6d1f21ac5c07fe4ca68

      SHA1

      e16506f662dc92023bf82def1d621497c8ab5890

      SHA256

      767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

      SHA512

      9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

    • C:\Windows\SysWOW64\rundll32mgr.exe

      Filesize

      94KB

      MD5

      f8434f362add5334f4f050f4b4b373a7

      SHA1

      f5915cb0d72c8faffe11126bc29da1b1db8092bc

      SHA256

      d34b378ede04c585c2bff8cf32112904e8512ee80c5a9fbb34ba224d8dbc868b

      SHA512

      6c6b4ea2b0e37a346145ee2814789d9da4c2688aff1c3e1cced16a620e8dc81566670336a3fe8a510b1754bbac6c3c6ac20aa7e20359b9c322bb220b50ac30b9

    • C:\Windows\SysWOW64\rundll32mgr.exe

      Filesize

      94KB

      MD5

      f8434f362add5334f4f050f4b4b373a7

      SHA1

      f5915cb0d72c8faffe11126bc29da1b1db8092bc

      SHA256

      d34b378ede04c585c2bff8cf32112904e8512ee80c5a9fbb34ba224d8dbc868b

      SHA512

      6c6b4ea2b0e37a346145ee2814789d9da4c2688aff1c3e1cced16a620e8dc81566670336a3fe8a510b1754bbac6c3c6ac20aa7e20359b9c322bb220b50ac30b9

    • memory/3472-137-0x0000000002030000-0x000000000205A000-memory.dmp

      Filesize

      168KB

    • memory/3472-138-0x0000000000400000-0x000000000042A000-memory.dmp

      Filesize

      168KB

    • memory/3472-139-0x0000000077BB0000-0x0000000077D53000-memory.dmp

      Filesize

      1.6MB