Analysis

  • max time kernel
    43s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    04-01-2023 03:36

General

  • Target

    b5b105751a2bf965a6b78eeff100fe4c75282ad6f37f98b9adcd15d8c64283ec.exe

  • Size

    71KB

  • MD5

    0bbb9b0d573a9c6027ca7e0b1f5478bf

  • SHA1

    59e756e0da6a82a0f9046a3538d507c75eb95252

  • SHA256

    b5b105751a2bf965a6b78eeff100fe4c75282ad6f37f98b9adcd15d8c64283ec

  • SHA512

    69e35a67c1d714a2b3db1ddaa3aef8accbf1c867a2de8c27b3488f77055947d954d4b6a8c62e59f7a835fad8e8148a2a4e744090889fc6d5cc18da5aa7a1c032

  • SSDEEP

    1536:G+5geBR2Q+a8M124Zl2i5SADBDg8trv4t9MBY5yMv:GDeBgQ+a8M12Y2i59hrvWMBIv

Score
8/10

Malware Config

Signatures

  • Modifies extensions of user files 14 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Deletes itself 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b5b105751a2bf965a6b78eeff100fe4c75282ad6f37f98b9adcd15d8c64283ec.exe
    "C:\Users\Admin\AppData\Local\Temp\b5b105751a2bf965a6b78eeff100fe4c75282ad6f37f98b9adcd15d8c64283ec.exe"
    1⤵
    • Modifies extensions of user files
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1940
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 3 > nul & del "C:\Users\Admin\AppData\Local\Temp\b5b105751a2bf965a6b78eeff100fe4c75282ad6f37f98b9adcd15d8c64283ec.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1924
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 3
        3⤵
        • Runs ping.exe
        PID:288

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/288-56-0x0000000000000000-mapping.dmp

  • memory/1924-55-0x0000000000000000-mapping.dmp

  • memory/1940-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

    Filesize

    8KB