Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    30-05-2023 10:32

General

  • Target

    Quotation_Request.js

  • Size

    985KB

  • MD5

    4aaba804e86dad56392b2a3dda056001

  • SHA1

    d544b097a373d1357570a4385b7912457367da3c

  • SHA256

    15e847369c9a89eadb626ec7b3f058b17fce169dad5d0ad44edab3d7ec04f745

  • SHA512

    7423d168f25f948310295e27b9a950b8666c6cd44a6a7d0f5768cdf69aec53cb7d068aaf6c3caa0674aed94bbb66aeef8f53dc04107a601cfbabf76641ad412b

  • SSDEEP

    6144:QQb9JgDg3ynDDKFCxCDwYjgegH0LGsJ2W1G32bi3/v0AbiBB8pt1vGWtkbIcJOyq:T7tm

Score
10/10

Malware Config

Extracted

Family

wshrat

C2

http://harold.2waky.com:3609

Signatures

  • WSHRAT

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

  • Blocklisted process makes network request 17 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).

  • Script User-Agent 16 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\Quotation_Request.js
    1⤵
    • Drops startup file
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\Quotation_Request.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:1632

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Quotation_Request.js
    Filesize

    704KB

    MD5

    546b6694622d75c06b6b0e42f4ee144d

    SHA1

    8adb6c3ac2d70fe0789b7f9ec2aafadf68198025

    SHA256

    abf1544fb6c3978efc53bd10aaf363cc71f1ad1c621f67db7104376dea28bb1c

    SHA512

    9a5348b0a1e775c9f72d5cf2a600806de69e9c97ba608d4add21c5358197a29fc85dca64acf0b758a2d44969e50f186ddcdc1bcd4f210f7e6c2d46016f7fcde2

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Quotation_Request.js
    Filesize

    985KB

    MD5

    4aaba804e86dad56392b2a3dda056001

    SHA1

    d544b097a373d1357570a4385b7912457367da3c

    SHA256

    15e847369c9a89eadb626ec7b3f058b17fce169dad5d0ad44edab3d7ec04f745

    SHA512

    7423d168f25f948310295e27b9a950b8666c6cd44a6a7d0f5768cdf69aec53cb7d068aaf6c3caa0674aed94bbb66aeef8f53dc04107a601cfbabf76641ad412b

  • C:\Users\Admin\AppData\Roaming\Quotation_Request.js
    Filesize

    985KB

    MD5

    4aaba804e86dad56392b2a3dda056001

    SHA1

    d544b097a373d1357570a4385b7912457367da3c

    SHA256

    15e847369c9a89eadb626ec7b3f058b17fce169dad5d0ad44edab3d7ec04f745

    SHA512

    7423d168f25f948310295e27b9a950b8666c6cd44a6a7d0f5768cdf69aec53cb7d068aaf6c3caa0674aed94bbb66aeef8f53dc04107a601cfbabf76641ad412b