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Analysis

  • max time kernel
    151s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2022, 21:02

General

  • Target

    f8b8ec56f9fe221b6da1d9fff8721997d22a9b3dc3bddba10bddd717e39498bb.dll

  • Size

    34KB

  • MD5

    0d9f1511263a1b7f7e5b90993e34e371

  • SHA1

    18066ad56d0c0a3cf6a475d9a336ebad2d8a5dc9

  • SHA256

    f8b8ec56f9fe221b6da1d9fff8721997d22a9b3dc3bddba10bddd717e39498bb

  • SHA512

    286b0087ff4286bb33491158f6686e4056e892e803b7f4391c45ed81b7cafc5570d75bc01c0d6fc39dda3ee8742a9e98c41b06ef1036fe8896271d28c9da5e43

  • SSDEEP

    768:Utew0FEJyPIBO44Pa/kvSnLrXihjLMX+dsYNnbcuyD7UJfq:UtByPj4+qL72j0csQnouy8Jfq

Score
9/10
upx

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • UPX packed file 5 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Drops file in Windows directory 2 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\f8b8ec56f9fe221b6da1d9fff8721997d22a9b3dc3bddba10bddd717e39498bb.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4572
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f8b8ec56f9fe221b6da1d9fff8721997d22a9b3dc3bddba10bddd717e39498bb.dll,#1
      2⤵
      • Drops file in Windows directory
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1884
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32 "C:\Windows\msisue.dll",_RunAs@16
        3⤵
        • Loads dropped DLL
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: EnumeratesProcesses
        PID:3284

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Windows\msisue.dll

    Filesize

    34KB

    MD5

    0d9f1511263a1b7f7e5b90993e34e371

    SHA1

    18066ad56d0c0a3cf6a475d9a336ebad2d8a5dc9

    SHA256

    f8b8ec56f9fe221b6da1d9fff8721997d22a9b3dc3bddba10bddd717e39498bb

    SHA512

    286b0087ff4286bb33491158f6686e4056e892e803b7f4391c45ed81b7cafc5570d75bc01c0d6fc39dda3ee8742a9e98c41b06ef1036fe8896271d28c9da5e43

  • C:\Windows\msisue.dll

    Filesize

    34KB

    MD5

    0d9f1511263a1b7f7e5b90993e34e371

    SHA1

    18066ad56d0c0a3cf6a475d9a336ebad2d8a5dc9

    SHA256

    f8b8ec56f9fe221b6da1d9fff8721997d22a9b3dc3bddba10bddd717e39498bb

    SHA512

    286b0087ff4286bb33491158f6686e4056e892e803b7f4391c45ed81b7cafc5570d75bc01c0d6fc39dda3ee8742a9e98c41b06ef1036fe8896271d28c9da5e43

  • memory/1884-133-0x0000000010000000-0x000000001001E000-memory.dmp

    Filesize

    120KB

  • memory/1884-138-0x0000000010000000-0x000000001001E000-memory.dmp

    Filesize

    120KB

  • memory/3284-137-0x0000000010000000-0x000000001001E000-memory.dmp

    Filesize

    120KB