vjw0rm | 4d33a89607377958b5ebe7aace8999e255d3a39d7b709bc026104975a6cc1d9c

General

Target

NewPO.js
Size

51KB
MD5

744ae049bf8a37d2e945802c3349e240
SHA1

7af3930f68e5b1c4bec8aea48b7d43e4aeff8719
SHA256

4d33a89607377958b5ebe7aace8999e255d3a39d7b709bc026104975a6cc1d9c
SHA512

9049cc2409c1807c47311c61e99c34bb450bd7daf573e88fbc6a464ef6a38a7afb26c314ee4ca6a82d2e17bd48f36591622a8b0bfb89b7b43f9c58380eff3e20
SSDEEP

768:DUEzBbCFLKCRxwxE1k/FvZIaf9fgWQ7juipgGfvoclPfDnJPbIpDEsYOLJVK:haLvGE1ktvGaf98juipSgfJb84sYOVVK

Score

10^/10

vjw0rm wshrat persistence trojan worm

Malware Config

Extracted

Family

wshrat

C2

http://212.193.30.230:7780

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
WSHRAT
WSHRAT is a variant of Houdini worm and has vbs and js variants.
trojan wshrat

Blocklisted process makes network request 25 IoCs

flow	pid	Process
5	5004	wscript.exe
7	5028	wscript.exe
8	4756	wscript.exe
15	5004	wscript.exe
19	5004	wscript.exe
23	5028	wscript.exe
24	4756	wscript.exe
34	5004	wscript.exe
35	5004	wscript.exe
38	5028	wscript.exe
39	4756	wscript.exe
43	5004	wscript.exe
44	5004	wscript.exe
45	5004	wscript.exe
46	5028	wscript.exe
47	4756	wscript.exe
49	5004	wscript.exe
51	5028	wscript.exe
52	4756	wscript.exe
53	5004	wscript.exe
54	5004	wscript.exe
55	5004	wscript.exe
56	5028	wscript.exe
57	4756	wscript.exe
58	5004	wscript.exe

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 5 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\NewPO.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yksCsTuMPb.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yksCsTuMPb.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\NewPO.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yksCsTuMPb.js	wscript.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NewPO = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\NewPO.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NewPO = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\NewPO.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NewPO = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\NewPO.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NewPO = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\NewPO.js\""	wscript.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Script User-Agent 9 IoCs

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

description	flow	ioc
HTTP User-Agent header	5	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 28/10/2022\|JavaScript
HTTP User-Agent header	15	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 28/10/2022\|JavaScript
HTTP User-Agent header	34	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 28/10/2022\|JavaScript
HTTP User-Agent header	43	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 28/10/2022\|JavaScript
HTTP User-Agent header	44	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 28/10/2022\|JavaScript
HTTP User-Agent header	55	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 28/10/2022\|JavaScript
HTTP User-Agent header	58	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 28/10/2022\|JavaScript
HTTP User-Agent header	53	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 28/10/2022\|JavaScript
HTTP User-Agent header	54	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 28/10/2022\|JavaScript

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 944 wrote to memory of 5028	944	wscript.exe	82
PID 944 wrote to memory of 5028	944	wscript.exe	82
PID 944 wrote to memory of 5004	944	wscript.exe	83
PID 944 wrote to memory of 5004	944	wscript.exe	83
PID 5004 wrote to memory of 4756	5004	wscript.exe	84
PID 5004 wrote to memory of 4756	5004	wscript.exe	84

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\NewPO.js
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:944
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\yksCsTuMPb.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:5028
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\NewPO.js"
  2⤵
  - Blocklisted process makes network request
  - Checks computer location settings
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:5004
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\yksCsTuMPb.js"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    PID:4756

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\NewPO.js

Filesize
51KB

MD5
744ae049bf8a37d2e945802c3349e240

SHA1
7af3930f68e5b1c4bec8aea48b7d43e4aeff8719

SHA256
4d33a89607377958b5ebe7aace8999e255d3a39d7b709bc026104975a6cc1d9c

SHA512
9049cc2409c1807c47311c61e99c34bb450bd7daf573e88fbc6a464ef6a38a7afb26c314ee4ca6a82d2e17bd48f36591622a8b0bfb89b7b43f9c58380eff3e20

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yksCsTuMPb.js

Filesize
10KB

MD5
17d5c0a1060cfc8fbaa137d82271d871

SHA1
4a3366a5c1c835e8f0ddea05e74fc14b189345cd

SHA256
2334f65d994aeff042eb0f2fc1d5b71ddff825dbed01dbcc481a0b13d91ac74f

SHA512
909de1138d286bc6226bc906c2d5d5b2a566f310b02fbb74fecfe41e38230cdec4347a3e22d3e16ef1a26bc07aef12b59dd0a6e75be8839acc2f39ccd002667a

Download Submit
C:\Users\Admin\AppData\Roaming\NewPO.js

Filesize
51KB

MD5
744ae049bf8a37d2e945802c3349e240

SHA1
7af3930f68e5b1c4bec8aea48b7d43e4aeff8719

SHA256
4d33a89607377958b5ebe7aace8999e255d3a39d7b709bc026104975a6cc1d9c

SHA512
9049cc2409c1807c47311c61e99c34bb450bd7daf573e88fbc6a464ef6a38a7afb26c314ee4ca6a82d2e17bd48f36591622a8b0bfb89b7b43f9c58380eff3e20

Download Submit
C:\Users\Admin\AppData\Roaming\yksCsTuMPb.js

Filesize
10KB

MD5
17d5c0a1060cfc8fbaa137d82271d871

SHA1
4a3366a5c1c835e8f0ddea05e74fc14b189345cd

SHA256
2334f65d994aeff042eb0f2fc1d5b71ddff825dbed01dbcc481a0b13d91ac74f

SHA512
909de1138d286bc6226bc906c2d5d5b2a566f310b02fbb74fecfe41e38230cdec4347a3e22d3e16ef1a26bc07aef12b59dd0a6e75be8839acc2f39ccd002667a

Download Submit
C:\Users\Admin\AppData\Roaming\yksCsTuMPb.js

Filesize
10KB

MD5
17d5c0a1060cfc8fbaa137d82271d871

SHA1
4a3366a5c1c835e8f0ddea05e74fc14b189345cd

SHA256
2334f65d994aeff042eb0f2fc1d5b71ddff825dbed01dbcc481a0b13d91ac74f

SHA512
909de1138d286bc6226bc906c2d5d5b2a566f310b02fbb74fecfe41e38230cdec4347a3e22d3e16ef1a26bc07aef12b59dd0a6e75be8839acc2f39ccd002667a

Download Submit

Analysis

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