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Analysis

  • max time kernel
    118s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    19/03/2024, 13:58

General

  • Target

    b4e71c56d0b0d3be945d960623b4206d591d27c4e5d0b24757d7a43756f77fc0.dll

  • Size

    247KB

  • MD5

    6149fecd64f55ef8c102c2a48ee34298

  • SHA1

    6d127ffd03f0e4128804fe7f6c72482e12119936

  • SHA256

    b4e71c56d0b0d3be945d960623b4206d591d27c4e5d0b24757d7a43756f77fc0

  • SHA512

    9291451a30158de16e6b4f2510f9577733a75cd496eba12aedee9b57195a481ee56a7360cb26bf910bb5d3f7ef7d6b31725e7aedf4cf65029a0d100fa3ebab4f

  • SSDEEP

    3072:WYnM9A5UEPeA2ggz/3ezHkta1D+ThXn/n9SGeMt2lQBV+UdE+rECWp7hKcb+:TMrzz/wEtZlf9xBV+UdvrEFp7hKJ

Score
7/10
upx

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 3 IoCs

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

  • Drops file in Program Files directory 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b4e71c56d0b0d3be945d960623b4206d591d27c4e5d0b24757d7a43756f77fc0.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b4e71c56d0b0d3be945d960623b4206d591d27c4e5d0b24757d7a43756f77fc0.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of AdjustPrivilegeToken
      PID:2944

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • \Program Files\Common Files\System\symsrv.dll

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/2944-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2944-4-0x0000000075000000-0x000000007502C000-memory.dmp

    Filesize

    176KB

  • memory/2944-5-0x0000000075000000-0x000000007502C000-memory.dmp

    Filesize

    176KB

  • memory/2944-6-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB