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Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/07/2024, 01:12

General

  • Target

    ZdVkArFtVOs.exe

  • Size

    1.4MB

  • MD5

    c9af6841029366d803a93b001ddb7da7

  • SHA1

    a9dd119d215b48730f36812985f8769ba6160305

  • SHA256

    87391e2f2e5d0c85b4b2436846a02dcc1dfac56d414867b85644ad0644009b7b

  • SHA512

    3e5d9b8a9d62ca85347696f8c0f1d2fd63325d41c570b444259dfb1e165cc237c2aa295401e46e3cddc7dfdb471d534dac5bd5aaff1c8cc7d47add7cdeaac674

  • SSDEEP

    24576:QvEkzLhaUON8Q9X2EjvdssVDn4y1gUZsG9BHgcsjhO8tL1SRrUHoxpBPmMRB:RH8QBLdFDn49UDxgcsjhO8tZurewB

Score
7/10
upx

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • UPX packed file 2 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 20 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ZdVkArFtVOs.exe
    "C:\Users\Admin\AppData\Local\Temp\ZdVkArFtVOs.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1664
    • C:\Windows\SysWOW64\ZdVkArFtVOs.exe
      -auto
      2⤵
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:860
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" cmd/c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\[email protected] > nul
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3720
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 2 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:4900
  • C:\Windows\SysWOW64\ZdVkArFtVOs.exe
    C:\Windows\SysWOW64\ZdVkArFtVOs.exe Service 1
    1⤵
    • Executes dropped EXE
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4140
    • C:\Windows\SysWOW64\ZdVkArFtVOs.exe
      -a1
      2⤵
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4496

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\ZdVkArFtVOs.exe

    Filesize

    1.4MB

    MD5

    c9af6841029366d803a93b001ddb7da7

    SHA1

    a9dd119d215b48730f36812985f8769ba6160305

    SHA256

    87391e2f2e5d0c85b4b2436846a02dcc1dfac56d414867b85644ad0644009b7b

    SHA512

    3e5d9b8a9d62ca85347696f8c0f1d2fd63325d41c570b444259dfb1e165cc237c2aa295401e46e3cddc7dfdb471d534dac5bd5aaff1c8cc7d47add7cdeaac674

  • memory/860-5-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/860-15-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/1664-7-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/1664-0-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4140-12-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4140-9-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4496-46-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4496-50-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4496-17-0x0000000004D20000-0x0000000004D2B000-memory.dmp

    Filesize

    44KB

  • memory/4496-18-0x00000000026F0000-0x00000000026F1000-memory.dmp

    Filesize

    4KB

  • memory/4496-44-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4496-13-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4496-47-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4496-48-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4496-49-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4496-16-0x00000000026C0000-0x00000000026CB000-memory.dmp

    Filesize

    44KB

  • memory/4496-51-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4496-52-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4496-53-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4496-54-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4496-55-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4496-56-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4496-57-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB

  • memory/4496-58-0x0000000000400000-0x0000000000845000-memory.dmp

    Filesize

    4.3MB