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Analysis

  • max time kernel
    141s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    26/05/2024, 20:55

General

  • Target

    1b303e91c83350df4a19adb18f3e7ea363df624ced2b78ed83edca4e32dd4815.dll

  • Size

    223KB

  • MD5

    e99dbe658c43d22074ae5d3a0f83851c

  • SHA1

    b084b400c98b97c573f7c3a736a54d26c67d359e

  • SHA256

    1b303e91c83350df4a19adb18f3e7ea363df624ced2b78ed83edca4e32dd4815

  • SHA512

    8cb520177c9c616daf43b6c110104d928daf039326109fadf6fa75d9825c77342881be29986ffeb6a1e7c8682a8b210f4dd890d4d25dbbe253dbfe512e8a1540

  • SSDEEP

    3072:6huf5Acecv3JvK2agufAnAZdlGZxIOtY81fs2lQBV+UdE+rECWp7hKxd5AxvFj:ZBAcjVagufYLIBV+UdvrEFp7hKbexvN

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
  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\1b303e91c83350df4a19adb18f3e7ea363df624ced2b78ed83edca4e32dd4815.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\1b303e91c83350df4a19adb18f3e7ea363df624ced2b78ed83edca4e32dd4815.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1312
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1312 -s 316
        3⤵
        • Program crash
        PID:1756

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/1312-3-0x0000000000160000-0x0000000000190000-memory.dmp

    Filesize

    192KB

  • memory/1312-5-0x0000000010000000-0x0000000010025000-memory.dmp

    Filesize

    148KB

  • memory/1312-6-0x0000000000160000-0x0000000000190000-memory.dmp

    Filesize

    192KB