Analysis

  • max time kernel
    43s
  • max time network
    53s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19-09-2022 04:27

General

  • Target

    cb4f3e3973c2f700d3ce133d250a38f9bf17a3a51215a2ae4b83a96666ab07fc.exe

  • Size

    47KB

  • MD5

    3111675bbe13e4b3aab627e04f9fa5eb

  • SHA1

    9c3da27ebf1e8d1112ff463d308223b3af658b49

  • SHA256

    cb4f3e3973c2f700d3ce133d250a38f9bf17a3a51215a2ae4b83a96666ab07fc

  • SHA512

    30978cbf9ecded72ceb49a070acd2eeb855be1eac4577dd8692e725d74b416d27f67296f27bcf50d96ba10d6d6c275eb9cf0eb0c943f52d37f0394b3a968f1dd

  • SSDEEP

    384:c5m4HaxadRPXA030iMeiYk+TKDjq8xLcm7Mi8++f2wPpR+PoMBSZ9qSsC1oE0ED:c446xadRvhkiMhYpWq8xA0+SBSc6aE

Score
9/10
upx

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • UPX packed file 4 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cb4f3e3973c2f700d3ce133d250a38f9bf17a3a51215a2ae4b83a96666ab07fc.exe
    "C:\Users\Admin\AppData\Local\Temp\cb4f3e3973c2f700d3ce133d250a38f9bf17a3a51215a2ae4b83a96666ab07fc.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:948
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\CB4F3E~1.EXE >> NUL
      2⤵
      • Deletes itself
      PID:608

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \Windows\Downloaded Program Files\WUstNjhyfQfpv8PQbC.cur

    Filesize

    20KB

    MD5

    939c1ba010b6e784a542d90551e36de9

    SHA1

    a666986b1d2ca41fef41f68f8305eb38b889a821

    SHA256

    dafc59fb3ba84aed566e3d637fcd3d5ca226ee3ede3dd511e506195323ecc5d6

    SHA512

    24d1da556b3e217fedf886d59b3577d2a509ee1a28fb5941ec1e623d683f0212a4446ccedf3e16e4379a0f55430a6ba1e4fdb5236f98ac5741f1d1c4e9026ffc

  • memory/948-54-0x0000000074AB1000-0x0000000074AB3000-memory.dmp

    Filesize

    8KB

  • memory/948-56-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/948-57-0x0000000010000000-0x0000000010014000-memory.dmp

    Filesize

    80KB

  • memory/948-59-0x0000000010000000-0x0000000010014000-memory.dmp

    Filesize

    80KB