Overview

overview

10

Static

static

YRGH009QA.js

windows7_x64

10

YRGH009QA.js

windows10-2004_x64

10

Analysis

  • max time kernel
    160s
  • max time network
    193s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    08-02-2022 01:27

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General

  • Target

    YRGH009QA.js

  • Size

    13KB

  • MD5

    7e4052c4ef66b69ea6567cf9511cddcd

  • SHA1

    4d3b046443bbba80244121c7ff44b3c4425292d3

  • SHA256

    c91b33406d00fdedeebd6ce809a612df96b5cea7835c2c13061498c6960d76e3

  • SHA512

    2b0ee57fdd1f77cb54f657fbea8637f040bba3728916f7e376e9f465ecca70e52dc9296c185908b9a37760812f85962b323bfcc7acdb74563cb45b089e8c0f19

Score
10/10
vjw0rmpersistencetrojanworm

Malware Config

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

    trojanwormvjw0rm
  • Blocklisted process makes network request 12 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops file in Windows directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\YRGH009QA.js
    1⤵
    • Blocklisted process makes network request
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3476
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\YRGH009QA.js
      2⤵
      • Creates scheduled task(s)
      PID:3900
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:3608
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:3496

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

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

  • memory/3608-136-0x000001C9E94E0000-0x000001C9E94F0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/3608-137-0x000001C9EB9B0000-0x000001C9EB9B4000-memory.dmp
    Filesize

    16KB

    Download