Analysis

  • max time kernel
    94s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 04:20

General

  • Target

    b1347df8f8940039cb68bd4e2568e8c68b1f1a0067ac9a0fb1a5f1aef2df61ea.exe

  • Size

    182KB

  • MD5

    bceb88668190427c178ea7ca11f8e878

  • SHA1

    7e2a0ad49638f2744a7bf16c2af77a2b0177461e

  • SHA256

    b1347df8f8940039cb68bd4e2568e8c68b1f1a0067ac9a0fb1a5f1aef2df61ea

  • SHA512

    3d98c0ea36b8f750b7404f8429e7a9d826150dbc12cfee018956e8c60a7f9587c4c8e3f59339cfbce4f1451f6c4e5057a5f03b864b4ca6ceb35560b7b3755e81

  • SSDEEP

    3072:KQoOG/Xth9DrXJWCpWEPjAsq5dhTSnP18uVpw+83C8xvWPrVjr8vNaPTNfCiJY:KQ4/pLQGqhWVpw+8y8xv+p2aLLY

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • Program crash 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b1347df8f8940039cb68bd4e2568e8c68b1f1a0067ac9a0fb1a5f1aef2df61ea.exe
    "C:\Users\Admin\AppData\Local\Temp\b1347df8f8940039cb68bd4e2568e8c68b1f1a0067ac9a0fb1a5f1aef2df61ea.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4908
    • C:\Users\Admin\AppData\Local\Temp\b1347df8f8940039cb68bd4e2568e8c68b1f1a0067ac9a0fb1a5f1aef2df61ea.exe
      "C:\Users\Admin\AppData\Local\Temp\b1347df8f8940039cb68bd4e2568e8c68b1f1a0067ac9a0fb1a5f1aef2df61ea.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4296
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4168
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:5048
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 676
            5⤵
            • Program crash
            PID:816
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 5048 -ip 5048
    1⤵
      PID:2736

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\nsf2D6B.tmp\bwJbyexASCbf.dll

      Filesize

      118KB

      MD5

      bee2bc7ca85e944a77dcf8be9bd8b7e1

      SHA1

      561e8f534eb2da783e2aa72a678b4967d71bdf23

      SHA256

      2b1c9ebd08e2c2286590e20f1777b07163dfa2706f12735a9317c3423ca71bf8

      SHA512

      51e385786e6de3f8b432be3f9cff5709b3d059a9183314dc6f69ac8b19c0809622964471aac21f5f1a67b9fc888dc2ba9969d1e015bb4fbb93de18fb6251c90f

    • C:\Users\Admin\AppData\Local\Temp\nsf2D6B.tmp\bwJbyexASCbf.dll

      Filesize

      118KB

      MD5

      bee2bc7ca85e944a77dcf8be9bd8b7e1

      SHA1

      561e8f534eb2da783e2aa72a678b4967d71bdf23

      SHA256

      2b1c9ebd08e2c2286590e20f1777b07163dfa2706f12735a9317c3423ca71bf8

      SHA512

      51e385786e6de3f8b432be3f9cff5709b3d059a9183314dc6f69ac8b19c0809622964471aac21f5f1a67b9fc888dc2ba9969d1e015bb4fbb93de18fb6251c90f

    • memory/4296-135-0x0000000000000000-mapping.dmp

    • memory/4296-136-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/4296-138-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/4296-139-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/4908-134-0x00000000022A0000-0x00000000022C6000-memory.dmp

      Filesize

      152KB