Analysis

  • max time kernel
    145s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    11-04-2023 13:11

General

  • Target

    proof of payment.js

  • Size

    956KB

  • MD5

    ea0abd3283c83ea38f1c2aad7946bc93

  • SHA1

    78996225f4275c638e3ef885a9093e0cc87b36a3

  • SHA256

    efccf4f22b72889b0b4ecba893a50e92faf48b3cdf1eee9680929b7ee4445305

  • SHA512

    891afba2b773cfd0d5662b2291a20f149cf5b1d6a4a1086c2a5c2559213628e61af5ffb46345e68872059b236ec86fc298b052dbfdd3ed4399737d59dd0517af

  • SSDEEP

    6144:MQGNU8Hyom1ly4GmCSJ3VuxTl/LpDC72aKdLrDu1A65F0yUMtcTK8ekCAaDm+tfq:Xees

Score
10/10

Malware Config

Extracted

Family

wshrat

C2

http://harold.2waky.com:1604

Signatures

  • WSHRAT

    WSHRAT is a variant of Houdini worm and has vbs and js variants.

  • Blocklisted process makes network request 24 IoCs
  • Drops startup file 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Script User-Agent 23 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\proof of payment.js"
    1⤵
    • Drops startup file
    • Suspicious use of WriteProcessMemory
    PID:1744
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\proof of payment.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:1920

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\proof of payment.js

    Filesize

    956KB

    MD5

    ea0abd3283c83ea38f1c2aad7946bc93

    SHA1

    78996225f4275c638e3ef885a9093e0cc87b36a3

    SHA256

    efccf4f22b72889b0b4ecba893a50e92faf48b3cdf1eee9680929b7ee4445305

    SHA512

    891afba2b773cfd0d5662b2291a20f149cf5b1d6a4a1086c2a5c2559213628e61af5ffb46345e68872059b236ec86fc298b052dbfdd3ed4399737d59dd0517af

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\proof of payment.js

    Filesize

    956KB

    MD5

    ea0abd3283c83ea38f1c2aad7946bc93

    SHA1

    78996225f4275c638e3ef885a9093e0cc87b36a3

    SHA256

    efccf4f22b72889b0b4ecba893a50e92faf48b3cdf1eee9680929b7ee4445305

    SHA512

    891afba2b773cfd0d5662b2291a20f149cf5b1d6a4a1086c2a5c2559213628e61af5ffb46345e68872059b236ec86fc298b052dbfdd3ed4399737d59dd0517af

  • C:\Users\Admin\proof of payment.js

    Filesize

    956KB

    MD5

    ea0abd3283c83ea38f1c2aad7946bc93

    SHA1

    78996225f4275c638e3ef885a9093e0cc87b36a3

    SHA256

    efccf4f22b72889b0b4ecba893a50e92faf48b3cdf1eee9680929b7ee4445305

    SHA512

    891afba2b773cfd0d5662b2291a20f149cf5b1d6a4a1086c2a5c2559213628e61af5ffb46345e68872059b236ec86fc298b052dbfdd3ed4399737d59dd0517af