Analysis

  • max time kernel
    150s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    30/10/2022, 00:04

General

  • Target

    3fa62e45125ec4c58b4fe8d2160ae7769d910fcc0a4dd8db2f1338bdd5f5e393.exe

  • Size

    60KB

  • MD5

    a26b60b6a12b9fdab754447c30bb2720

  • SHA1

    4ba29302fe635b961ec160a1ebc175793484e2a7

  • SHA256

    3fa62e45125ec4c58b4fe8d2160ae7769d910fcc0a4dd8db2f1338bdd5f5e393

  • SHA512

    9bcae91d8e1dc789c3bf2f2dbfc72fc38c72a4d2a09038c972d802f393c77c57f0374614965c0bf217a0680d0269555da8bbae620d8992ade5df025087101468

  • SSDEEP

    768:BQefh+S2YZtTIZb05Lm3dSUMUWMUX2TtFIkNcSFIkid+69KOeM1gYn6cg4gspB6:5h+S2YnZKkQ1WlkSeTZNMmJ0CwJW

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 52 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 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3fa62e45125ec4c58b4fe8d2160ae7769d910fcc0a4dd8db2f1338bdd5f5e393.exe
    "C:\Users\Admin\AppData\Local\Temp\3fa62e45125ec4c58b4fe8d2160ae7769d910fcc0a4dd8db2f1338bdd5f5e393.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Users\Admin\yoafuoh.exe
      "C:\Users\Admin\yoafuoh.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
      • Suspicious use of WriteProcessMemory
      PID:892

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\yoafuoh.exe

    Filesize

    60KB

    MD5

    ee245d4ff76de8a8098421167a88f602

    SHA1

    b80568a8c5db5bec9b9f8d9816c53ae42aab5b81

    SHA256

    00e59b590574e95ea9c7fe8f6d56cbc60853d10d3df6e0cd275cfa906812b700

    SHA512

    1faaf495f09eb9ee381cdcbbe8bb53f9f00e579f708ae1551fcab6c6bda2a482eeb1a73a2e549e45d01c403824343206412b3aa2614c35494866235008206d2a

  • C:\Users\Admin\yoafuoh.exe

    Filesize

    60KB

    MD5

    ee245d4ff76de8a8098421167a88f602

    SHA1

    b80568a8c5db5bec9b9f8d9816c53ae42aab5b81

    SHA256

    00e59b590574e95ea9c7fe8f6d56cbc60853d10d3df6e0cd275cfa906812b700

    SHA512

    1faaf495f09eb9ee381cdcbbe8bb53f9f00e579f708ae1551fcab6c6bda2a482eeb1a73a2e549e45d01c403824343206412b3aa2614c35494866235008206d2a

  • \Users\Admin\yoafuoh.exe

    Filesize

    60KB

    MD5

    ee245d4ff76de8a8098421167a88f602

    SHA1

    b80568a8c5db5bec9b9f8d9816c53ae42aab5b81

    SHA256

    00e59b590574e95ea9c7fe8f6d56cbc60853d10d3df6e0cd275cfa906812b700

    SHA512

    1faaf495f09eb9ee381cdcbbe8bb53f9f00e579f708ae1551fcab6c6bda2a482eeb1a73a2e549e45d01c403824343206412b3aa2614c35494866235008206d2a

  • \Users\Admin\yoafuoh.exe

    Filesize

    60KB

    MD5

    ee245d4ff76de8a8098421167a88f602

    SHA1

    b80568a8c5db5bec9b9f8d9816c53ae42aab5b81

    SHA256

    00e59b590574e95ea9c7fe8f6d56cbc60853d10d3df6e0cd275cfa906812b700

    SHA512

    1faaf495f09eb9ee381cdcbbe8bb53f9f00e579f708ae1551fcab6c6bda2a482eeb1a73a2e549e45d01c403824343206412b3aa2614c35494866235008206d2a

  • memory/892-67-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/892-72-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/2032-56-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/2032-57-0x00000000766D1000-0x00000000766D3000-memory.dmp

    Filesize

    8KB

  • memory/2032-65-0x0000000002A10000-0x0000000002A33000-memory.dmp

    Filesize

    140KB

  • memory/2032-66-0x0000000002A10000-0x0000000002A33000-memory.dmp

    Filesize

    140KB

  • memory/2032-69-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

  • memory/2032-70-0x0000000002A10000-0x0000000002A33000-memory.dmp

    Filesize

    140KB

  • memory/2032-71-0x0000000002A10000-0x0000000002A33000-memory.dmp

    Filesize

    140KB