Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 00:25

General

  • Target

    3b48ace7652d8a92b65501b869d45d1ab39df9629344d3f76ebe502e890cec35.exe

  • Size

    264KB

  • MD5

    434fbd8b35aaf252814e12d5e716a649

  • SHA1

    f5d93cc1c766a582a58a0e918f2989d6e960d434

  • SHA256

    3b48ace7652d8a92b65501b869d45d1ab39df9629344d3f76ebe502e890cec35

  • SHA512

    d0539b6450c5341e8e66d46f747c188395dcc2246e9c999ae38e72ad0f66f8dc6c390fe1bb85b025a575b5bb599e251fb2caa8099568228ff568fa38da4afdc6

  • SSDEEP

    3072:Fv3KfbTeiCX1xZnMIYS3EQqG+vfK5SbwyMtvb0vOkuCE/H/MZpOSKemKmD:tnk+qG+vfK5Gwy+Yvwfa25D

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 29 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\3b48ace7652d8a92b65501b869d45d1ab39df9629344d3f76ebe502e890cec35.exe
    "C:\Users\Admin\AppData\Local\Temp\3b48ace7652d8a92b65501b869d45d1ab39df9629344d3f76ebe502e890cec35.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:1348
    • C:\Users\Admin\liuja.exe
      "C:\Users\Admin\liuja.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:2036

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\liuja.exe

    Filesize

    264KB

    MD5

    3d0dd2a92ab8fc58426fce5e6780edb9

    SHA1

    38b2e912181a80bf3c0bac22b8594e9f766c4687

    SHA256

    ecf8810615c76a139b6ca245f4be6e821f9e706e918958d4542af0c052448c1c

    SHA512

    8d5cdb2ba9414467ff64db8e897ced9f85735b5649b2c512a75b60b040d344068ce75fa0ef80284f279e9bdf29b991fd7a2dd3ccd3d1d36871dd77da092f4e35

  • C:\Users\Admin\liuja.exe

    Filesize

    264KB

    MD5

    3d0dd2a92ab8fc58426fce5e6780edb9

    SHA1

    38b2e912181a80bf3c0bac22b8594e9f766c4687

    SHA256

    ecf8810615c76a139b6ca245f4be6e821f9e706e918958d4542af0c052448c1c

    SHA512

    8d5cdb2ba9414467ff64db8e897ced9f85735b5649b2c512a75b60b040d344068ce75fa0ef80284f279e9bdf29b991fd7a2dd3ccd3d1d36871dd77da092f4e35

  • \Users\Admin\liuja.exe

    Filesize

    264KB

    MD5

    3d0dd2a92ab8fc58426fce5e6780edb9

    SHA1

    38b2e912181a80bf3c0bac22b8594e9f766c4687

    SHA256

    ecf8810615c76a139b6ca245f4be6e821f9e706e918958d4542af0c052448c1c

    SHA512

    8d5cdb2ba9414467ff64db8e897ced9f85735b5649b2c512a75b60b040d344068ce75fa0ef80284f279e9bdf29b991fd7a2dd3ccd3d1d36871dd77da092f4e35

  • \Users\Admin\liuja.exe

    Filesize

    264KB

    MD5

    3d0dd2a92ab8fc58426fce5e6780edb9

    SHA1

    38b2e912181a80bf3c0bac22b8594e9f766c4687

    SHA256

    ecf8810615c76a139b6ca245f4be6e821f9e706e918958d4542af0c052448c1c

    SHA512

    8d5cdb2ba9414467ff64db8e897ced9f85735b5649b2c512a75b60b040d344068ce75fa0ef80284f279e9bdf29b991fd7a2dd3ccd3d1d36871dd77da092f4e35

  • memory/1348-56-0x0000000075601000-0x0000000075603000-memory.dmp

    Filesize

    8KB

  • memory/2036-59-0x0000000000000000-mapping.dmp