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Analysis

  • max time kernel
    152s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02/12/2022, 00:20

General

  • Target

    859c20830ed0f8f5d96fd91df2d5a428d6041ea0f6e6f7a0b3e047408953f4d3.exe

  • Size

    268KB

  • MD5

    f5af296d50d4a0474e56d12e7bdef821

  • SHA1

    89ad607cdda477ec9728c4c02f32dd58620a2e29

  • SHA256

    859c20830ed0f8f5d96fd91df2d5a428d6041ea0f6e6f7a0b3e047408953f4d3

  • SHA512

    4ec546a2b70739c1a335b841a0219e76748077240d40c21fc38d3634e017251febe7a3d53db51ca581d3c43094de3481e9b14a0ff14accce012d08b751ce02bc

  • SSDEEP

    6144:XmbOJl0UMS422Ous+azXt3D+Qh/pHq8+6IcLaOO3VX6uB/eBcJwRiY10Nfz:t0UMS4hsJzXt3D+Qh3IcqK25

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 53 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\859c20830ed0f8f5d96fd91df2d5a428d6041ea0f6e6f7a0b3e047408953f4d3.exe
    "C:\Users\Admin\AppData\Local\Temp\859c20830ed0f8f5d96fd91df2d5a428d6041ea0f6e6f7a0b3e047408953f4d3.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1920
    • C:\Users\Admin\zjgah.exe
      "C:\Users\Admin\zjgah.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1388

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\zjgah.exe

    Filesize

    268KB

    MD5

    c03e0ce7f7ad0e1f05a8c63286dfb74d

    SHA1

    472983407d83a8bde24d94b33bc08376ab364b7d

    SHA256

    add5df668341fdb08b3d2486ac4fc2b8d722441862507b23b2a8da6fb68b81ec

    SHA512

    b5874708d082f672182c6a9fc43b4386c3c91cde82a01a349d8e2b2939160f3bda8eebb8488f10a8a00ac6fd342bd1f9421e7136b5ca5816af0b5c109f8688d3

  • C:\Users\Admin\zjgah.exe

    Filesize

    268KB

    MD5

    c03e0ce7f7ad0e1f05a8c63286dfb74d

    SHA1

    472983407d83a8bde24d94b33bc08376ab364b7d

    SHA256

    add5df668341fdb08b3d2486ac4fc2b8d722441862507b23b2a8da6fb68b81ec

    SHA512

    b5874708d082f672182c6a9fc43b4386c3c91cde82a01a349d8e2b2939160f3bda8eebb8488f10a8a00ac6fd342bd1f9421e7136b5ca5816af0b5c109f8688d3

  • \Users\Admin\zjgah.exe

    Filesize

    268KB

    MD5

    c03e0ce7f7ad0e1f05a8c63286dfb74d

    SHA1

    472983407d83a8bde24d94b33bc08376ab364b7d

    SHA256

    add5df668341fdb08b3d2486ac4fc2b8d722441862507b23b2a8da6fb68b81ec

    SHA512

    b5874708d082f672182c6a9fc43b4386c3c91cde82a01a349d8e2b2939160f3bda8eebb8488f10a8a00ac6fd342bd1f9421e7136b5ca5816af0b5c109f8688d3

  • \Users\Admin\zjgah.exe

    Filesize

    268KB

    MD5

    c03e0ce7f7ad0e1f05a8c63286dfb74d

    SHA1

    472983407d83a8bde24d94b33bc08376ab364b7d

    SHA256

    add5df668341fdb08b3d2486ac4fc2b8d722441862507b23b2a8da6fb68b81ec

    SHA512

    b5874708d082f672182c6a9fc43b4386c3c91cde82a01a349d8e2b2939160f3bda8eebb8488f10a8a00ac6fd342bd1f9421e7136b5ca5816af0b5c109f8688d3

  • memory/1920-56-0x00000000763F1000-0x00000000763F3000-memory.dmp

    Filesize

    8KB