Analysis
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max time kernel
143s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
24/07/2023, 01:56
Static task
static1
Behavioral task
behavioral1
Sample
39372ec10b2720511f8ca94e8aed43273c507637ec03f9a1eac279aadeb22c55.js
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
39372ec10b2720511f8ca94e8aed43273c507637ec03f9a1eac279aadeb22c55.js
Resource
win10v2004-20230703-en
General
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Target
39372ec10b2720511f8ca94e8aed43273c507637ec03f9a1eac279aadeb22c55.js
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Size
24KB
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MD5
4272d76e2efed7d323e14bccef987913
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SHA1
a8cde379b41cfafb036896484844620a7fcc11c6
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SHA256
39372ec10b2720511f8ca94e8aed43273c507637ec03f9a1eac279aadeb22c55
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SHA512
717ca100e5f2463b8aa675185e2dbd743a015fffe7654dab2b227691ed66e9443a3e387d31c3eeed63a22d1b3f77b213feec3c3fe6c1438ddf5313066f2583a9
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SSDEEP
384:0B+UO8kwlbBtHS0ihYvG3bMZcCOQHp4aIX6xEzWZNxFlumanjjjIYNFLD5zvOJ:09ewl7tGr+Oy4aPOL13IoFLdzGJ
Malware Config
Extracted
vjw0rm
http://severdops.ddns.net:5050
Signatures
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Blocklisted process makes network request 1 IoCs
flow pid Process 30 752 wscript.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000\Control Panel\International\Geo\Nation wscript.exe -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\39372ec10b2720511f8ca94e8aed43273c507637ec03f9a1eac279aadeb22c55.js wscript.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1CYH0WDT4T = "\"C:\\Users\\Admin\\AppData\\Roaming\\39372ec10b2720511f8ca94e8aed43273c507637ec03f9a1eac279aadeb22c55.js\"" wscript.exe Key created \REGISTRY\USER\S-1-5-21-3011986978-2180659500-3669311805-1000\Software\Microsoft\Windows\CurrentVersion\Run wscript.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1576 schtasks.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 752 wrote to memory of 1576 752 wscript.exe 89 PID 752 wrote to memory of 1576 752 wscript.exe 89 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\39372ec10b2720511f8ca94e8aed43273c507637ec03f9a1eac279aadeb22c55.js1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:752 -
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\39372ec10b2720511f8ca94e8aed43273c507637ec03f9a1eac279aadeb22c55.js2⤵
- Creates scheduled task(s)
PID:1576
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