Overview

overview

10

Static

static

1

Purchase Invoice.js

windows7-x64

10

Purchase Invoice.js

windows10-2004-x64

10

Analysis

  • max time kernel
    143s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-05-2023 13:30

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General

  • Target

    Purchase Invoice.js

  • Size

    1013KB

  • MD5

    0d9dbbce1cc0b89b22225bd6cdc6a67a

  • SHA1

    04223db348fe531a15a961cf0e26f9b8257af986

  • SHA256

    ae401add3e6d11019f5bb30c106b7a8fa4d1a93bce47208e4e736e09d1faebdd

  • SHA512

    6a1a18b028d3fbeae8f3a38869b2e2fc44cf10a9cfaedfa314a8bef85c2584444000d593ad90f6f9dc495ba35bc05727aec03c3a42fa797923825c157bd14491

  • SSDEEP

    3072:QQO7VS2G9XYK9oMvjNvyi+xf2yEoal/Wjzy94CDd:QQO7VS2G9XYK9oMh+K3l7

Score
10/10
wshrattrojan

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.

    trojanwshrat
  • Blocklisted process makes network request 20 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 19 IoCs

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

  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\Purchase Invoice.js"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Suspicious use of WriteProcessMemory
    PID:4996
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\Purchase Invoice.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:2124

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

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

    1013KB

    MD5

    0d9dbbce1cc0b89b22225bd6cdc6a67a

    SHA1

    04223db348fe531a15a961cf0e26f9b8257af986

    SHA256

    ae401add3e6d11019f5bb30c106b7a8fa4d1a93bce47208e4e736e09d1faebdd

    SHA512

    6a1a18b028d3fbeae8f3a38869b2e2fc44cf10a9cfaedfa314a8bef85c2584444000d593ad90f6f9dc495ba35bc05727aec03c3a42fa797923825c157bd14491

    Download Submit
  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Purchase Invoice.js
    Filesize

    1013KB

    MD5

    0d9dbbce1cc0b89b22225bd6cdc6a67a

    SHA1

    04223db348fe531a15a961cf0e26f9b8257af986

    SHA256

    ae401add3e6d11019f5bb30c106b7a8fa4d1a93bce47208e4e736e09d1faebdd

    SHA512

    6a1a18b028d3fbeae8f3a38869b2e2fc44cf10a9cfaedfa314a8bef85c2584444000d593ad90f6f9dc495ba35bc05727aec03c3a42fa797923825c157bd14491

    Download Submit
  • C:\Users\Admin\AppData\Roaming\Purchase Invoice.js
    Filesize

    1013KB

    MD5

    0d9dbbce1cc0b89b22225bd6cdc6a67a

    SHA1

    04223db348fe531a15a961cf0e26f9b8257af986

    SHA256

    ae401add3e6d11019f5bb30c106b7a8fa4d1a93bce47208e4e736e09d1faebdd

    SHA512

    6a1a18b028d3fbeae8f3a38869b2e2fc44cf10a9cfaedfa314a8bef85c2584444000d593ad90f6f9dc495ba35bc05727aec03c3a42fa797923825c157bd14491

    Download Submit