vjw0rm | 1ee08a9037a820ccadbc782796577fb8581c0003d3f53201510fded41788ddd1

Analysis

max time kernel
1796s
max time network
1800s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
29-06-2023 17:43

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General

Target

TrackingLabel.js
Size

2.7MB
MD5

19c5045d74bd6d55551c00910f44e3cb
SHA1

fa656d4789cc9f0ec6e3cd211b90eda57302c3ef
SHA256

1ee08a9037a820ccadbc782796577fb8581c0003d3f53201510fded41788ddd1
SHA512

516771d1bc03cfc404d99681472f2cd09c88ebc71c00c083923807154e257d4aca087d7ab9f05a74152259199223de1b2458af0e5aff0a9aea44f86c7fda0433
SSDEEP

24576:QoquCbsNf3EdHLEZ8JUvJbXAGetdw8Rwzgys8Pam8Ve7Ylvi+A:AA

Score

10^/10

vjw0rm wshrat persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

http://jemyy.theworkpc.com:5401

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 64 IoCs

flow	pid	Process
15	4612	wscript.exe
22	636	wscript.exe
26	2148	wscript.exe
37	4612	wscript.exe
39	2148	wscript.exe
45	4612	wscript.exe
46	2148	wscript.exe
58	4612	wscript.exe
64	2148	wscript.exe
66	4612	wscript.exe
67	2148	wscript.exe
70	4612	wscript.exe
72	2148	wscript.exe
74	4612	wscript.exe
75	2148	wscript.exe
76	4612	wscript.exe
77	2148	wscript.exe
78	4612	wscript.exe
79	2148	wscript.exe
80	4612	wscript.exe
81	2148	wscript.exe
82	4612	wscript.exe
83	2148	wscript.exe
84	4612	wscript.exe
85	2148	wscript.exe
86	4612	wscript.exe
87	2148	wscript.exe
88	4612	wscript.exe
89	2148	wscript.exe
90	4612	wscript.exe
91	2148	wscript.exe
92	4612	wscript.exe
93	2148	wscript.exe
94	4612	wscript.exe
95	2148	wscript.exe
96	4612	wscript.exe
97	2148	wscript.exe
98	4612	wscript.exe
99	2148	wscript.exe
100	4612	wscript.exe
101	2148	wscript.exe
102	4612	wscript.exe
103	2148	wscript.exe
104	4612	wscript.exe
105	2148	wscript.exe
106	4612	wscript.exe
107	2148	wscript.exe
108	4612	wscript.exe
109	2148	wscript.exe
110	4612	wscript.exe
111	2148	wscript.exe
112	4612	wscript.exe
113	2148	wscript.exe
114	4612	wscript.exe
115	2148	wscript.exe
116	4612	wscript.exe
117	2148	wscript.exe
120	4612	wscript.exe
122	2148	wscript.exe
124	4612	wscript.exe
125	2148	wscript.exe
126	4612	wscript.exe
127	2148	wscript.exe
128	4612	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-1-5-21-2178924671-3779044592-2825503497-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\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\TrackingLabel.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sCmQSwcNNH.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sCmQSwcNNH.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TrackingLabel.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sCmQSwcNNH.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TrackingLabel = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\TrackingLabel.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TrackingLabel = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\TrackingLabel.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TrackingLabel = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\TrackingLabel.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TrackingLabel = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\TrackingLabel.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe

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

System Information Discovery
T1082

Script User-Agent 1 IoCs

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

description	flow	ioc
HTTP User-Agent header	22	WSHRAT\|9078F49C\|FNCPTJBF\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 29/6/2023\|JavaScript

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4976 wrote to memory of 4612	4976	wscript.exe	83
PID 4976 wrote to memory of 4612	4976	wscript.exe	83
PID 4976 wrote to memory of 636	4976	wscript.exe	84
PID 4976 wrote to memory of 636	4976	wscript.exe	84
PID 636 wrote to memory of 2148	636	wscript.exe	85
PID 636 wrote to memory of 2148	636	wscript.exe	85

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\TrackingLabel.js
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4976
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\sCmQSwcNNH.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:4612
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\TrackingLabel.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:636
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\sCmQSwcNNH.js"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    PID:2148

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
2.7MB

MD5
19c5045d74bd6d55551c00910f44e3cb

SHA1
fa656d4789cc9f0ec6e3cd211b90eda57302c3ef

SHA256
1ee08a9037a820ccadbc782796577fb8581c0003d3f53201510fded41788ddd1

SHA512
516771d1bc03cfc404d99681472f2cd09c88ebc71c00c083923807154e257d4aca087d7ab9f05a74152259199223de1b2458af0e5aff0a9aea44f86c7fda0433

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

Filesize
346KB

MD5
ddd86f3f3317db8d3976edbba41483dc

SHA1
3302b16e470d9d3dff221a9ed63e4b7d6a846d7f

SHA256
d1fae4d587ac0ab289ff6ad45d9363c62068f120bc7aa8c88d411aaefdea12d5

SHA512
7eacfe75e8f214c11cbdad8ebd0b4dd818717541e191dfcf42fbb736953e350156ec3359e93bd572f93852487a85fa2335edd5256b49f4a7cdf2b20876723e1c

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

Filesize
2.7MB

MD5
19c5045d74bd6d55551c00910f44e3cb

SHA1
fa656d4789cc9f0ec6e3cd211b90eda57302c3ef

SHA256
1ee08a9037a820ccadbc782796577fb8581c0003d3f53201510fded41788ddd1

SHA512
516771d1bc03cfc404d99681472f2cd09c88ebc71c00c083923807154e257d4aca087d7ab9f05a74152259199223de1b2458af0e5aff0a9aea44f86c7fda0433

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

Filesize
346KB

MD5
ddd86f3f3317db8d3976edbba41483dc

SHA1
3302b16e470d9d3dff221a9ed63e4b7d6a846d7f

SHA256
d1fae4d587ac0ab289ff6ad45d9363c62068f120bc7aa8c88d411aaefdea12d5

SHA512
7eacfe75e8f214c11cbdad8ebd0b4dd818717541e191dfcf42fbb736953e350156ec3359e93bd572f93852487a85fa2335edd5256b49f4a7cdf2b20876723e1c

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

Filesize
346KB

MD5
ddd86f3f3317db8d3976edbba41483dc

SHA1
3302b16e470d9d3dff221a9ed63e4b7d6a846d7f

SHA256
d1fae4d587ac0ab289ff6ad45d9363c62068f120bc7aa8c88d411aaefdea12d5

SHA512
7eacfe75e8f214c11cbdad8ebd0b4dd818717541e191dfcf42fbb736953e350156ec3359e93bd572f93852487a85fa2335edd5256b49f4a7cdf2b20876723e1c

Download Submit