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Analysis

  • max time kernel
    42s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02/12/2022, 00:52

General

  • Target

    181fb1aa80205a7ec9ca50fb02f4c0a5d3c22fa78a974f20ef5c4559e4937850.exe

  • Size

    9.1MB

  • MD5

    aaa585f29635d03b33aab4180b386665

  • SHA1

    97d7eb0712cdaf1cb93b80a4e027285bb5cf5583

  • SHA256

    181fb1aa80205a7ec9ca50fb02f4c0a5d3c22fa78a974f20ef5c4559e4937850

  • SHA512

    83cac084e64b0a494b1063dfe6ee6be4298db70ecb4df5c239c56309c92edb1342e371b93a64346f9692c1af72f008dff9b78cae0f29101330e8027138db3d14

  • SSDEEP

    196608:i7effIPEsy58doQaTxLhQyZbIly38doQalArdfehQM2gsyVCQlXlAryfEQulen8u:i7effIPEsy58doQaTxLhQyZbIly38dob

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • ACProtect 1.3x - 1.4x DLL software 3 IoCs

    Detects file using ACProtect software.

  • Drops file in Drivers directory 2 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • UPX packed file 5 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates connected drives 3 TTPs 20 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Modifies WinLogon 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\181fb1aa80205a7ec9ca50fb02f4c0a5d3c22fa78a974f20ef5c4559e4937850.exe
    "C:\Users\Admin\AppData\Local\Temp\181fb1aa80205a7ec9ca50fb02f4c0a5d3c22fa78a974f20ef5c4559e4937850.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Drivers directory
    • Sets service image path in registry
    • Loads dropped DLL
    • Adds Run key to start application
    • Enumerates connected drives
    • Modifies WinLogon
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1960
    • C:\Windows\SysWOW64\reg.exe
      reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects" /f
      2⤵
      • Installs/modifies Browser Helper Object
      PID:1732

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \Windows\SysWOW64\ftpdll.dll

    Filesize

    5KB

    MD5

    d807aa04480d1d149f7a4cac22984188

    SHA1

    ffd5be65fd10017e34c11cecd105ebf4aa6c0cd9

    SHA256

    eddf092d901afe128322910c3ff41a3f242d33d6b4cdf91ece327076b324ccbb

    SHA512

    875543583c20ab164f37a4fb2587d234ce0a15d649d22b0d1dae5933f0a7683db170578746ea4458c51fec26e2243c6ec00dc10db8d4289789e50d5800cf863e

  • memory/1960-54-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1960-56-0x0000000074AB1000-0x0000000074AB3000-memory.dmp

    Filesize

    8KB

  • memory/1960-58-0x0000000010000000-0x000000001010B000-memory.dmp

    Filesize

    1.0MB

  • memory/1960-59-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/1960-60-0x0000000010000000-0x000000001010B000-memory.dmp

    Filesize

    1.0MB