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Analysis

  • max time kernel
    157s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/10/2022, 23:11

General

  • Target

    7772e99c3746ef4b90e02aa1eaf500d6e9f4b79c1b722bc748267df879e34d3f.dll

  • Size

    453KB

  • MD5

    915212b329545e42dcbb4aae6458ef10

  • SHA1

    0880ba34642d03d652371c0eaec7010feb3b1a2c

  • SHA256

    7772e99c3746ef4b90e02aa1eaf500d6e9f4b79c1b722bc748267df879e34d3f

  • SHA512

    6646789f92c0fa91ac5a52ce1cc2c4a67dd8e1abc78983cf6ac76a7330251737e5f6e598402f7f66726e6a0f5a907e2e6026fbfe282ef93efa3b1b16e34e3564

  • SSDEEP

    12288:h6qIr+648pT2vo7/lK/3uY8aWKG4MY3gxU81C/yxRVoXdsgd8kJyo39koTJ2vpu4:hdIr+646u8R3FKyo36QJO6A5U9Hg

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\7772e99c3746ef4b90e02aa1eaf500d6e9f4b79c1b722bc748267df879e34d3f.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3376
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\7772e99c3746ef4b90e02aa1eaf500d6e9f4b79c1b722bc748267df879e34d3f.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2096
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:4768
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4768 -s 476
          4⤵
          • Program crash
          PID:4632
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4768 -ip 4768
    1⤵
      PID:4704

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\~TMC9AE.tmp

      Filesize

      1.6MB

      MD5

      4f3387277ccbd6d1f21ac5c07fe4ca68

      SHA1

      e16506f662dc92023bf82def1d621497c8ab5890

      SHA256

      767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

      SHA512

      9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

    • C:\Windows\SysWOW64\rundll32mgr.exe

      Filesize

      106KB

      MD5

      dcd2cafa72c9d5bd898b636a18133d3c

      SHA1

      b55e85453de9254cbf4c21c0de92d82c6deefccb

      SHA256

      936b14fbbf629fcf92ac06673d974de2b2a44a109953e6664e1c36a4e5c9d27c

      SHA512

      59e475f668015b3a6372d79ea6459b21ae591d73305b7696ef139fe0e716f1038595ea5df079e1850535e6358aef4d8e92bdee68ffd07b44471bc7133041952c

    • C:\Windows\SysWOW64\rundll32mgr.exe

      Filesize

      106KB

      MD5

      dcd2cafa72c9d5bd898b636a18133d3c

      SHA1

      b55e85453de9254cbf4c21c0de92d82c6deefccb

      SHA256

      936b14fbbf629fcf92ac06673d974de2b2a44a109953e6664e1c36a4e5c9d27c

      SHA512

      59e475f668015b3a6372d79ea6459b21ae591d73305b7696ef139fe0e716f1038595ea5df079e1850535e6358aef4d8e92bdee68ffd07b44471bc7133041952c

    • memory/2096-133-0x0000000074DB0000-0x0000000074E3B000-memory.dmp

      Filesize

      556KB

    • memory/4768-138-0x0000000000400000-0x000000000042A000-memory.dmp

      Filesize

      168KB

    • memory/4768-139-0x0000000002040000-0x000000000206A000-memory.dmp

      Filesize

      168KB

    • memory/4768-140-0x0000000077360000-0x0000000077503000-memory.dmp

      Filesize

      1.6MB