vjw0rm | 27026383c0fbcc79e6eacfb629b41261afac694e69fa67749ab2d0d1a6493d2b

General

Target

receipt#.js
Size

43KB
MD5

c2fccb1379ea9c93fa035c236c0d0627
SHA1

4fb24cde2f2879dfc0ca43ca2c2e42af8efcf7da
SHA256

27026383c0fbcc79e6eacfb629b41261afac694e69fa67749ab2d0d1a6493d2b
SHA512

dc0963d8a2fe131eccc800ea5a88cbd85aa6473c6080544cebde819e6cb8ad8e99387f604c2e2d9cb6bea086a01705e3230ce5cb09878dff0840cf3b766e0ee2

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

C2

http://zeegod.duckdns.org:9004

http://paypalintelsassistant.duia.ro:8153

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm

Blocklisted process makes network request 21 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
6	2004	wscript.exe
7	4200	wscript.exe
12	4200	wscript.exe
13	4200	wscript.exe
16	4200	wscript.exe
26	4200	wscript.exe
33	4200	wscript.exe
35	4200	wscript.exe
41	4200	wscript.exe
44	4200	wscript.exe
45	4200	wscript.exe
46	4200	wscript.exe
47	4200	wscript.exe
50	4200	wscript.exe
51	4200	wscript.exe
52	4200	wscript.exe
53	4200	wscript.exe
54	4200	wscript.exe
55	4200	wscript.exe
56	4200	wscript.exe
57	4200	wscript.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

wscript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 3 IoCs

Processes:

wscript.exewscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PLgBtFniEj.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PLgBtFniEj.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\receipt#.js	wscript.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exewscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Roaming\\PLgBtFniEj.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\KYXNMD0WI5 = "\"C:\\Users\\Admin\\receipt#.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
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1396 schtasks.exe

pid	process
1396	schtasks.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 2004 wrote to memory of 4200	2004	wscript.exe	wscript.exe
PID 2004 wrote to memory of 4200	2004	wscript.exe	wscript.exe
PID 2004 wrote to memory of 1396	2004	wscript.exe	schtasks.exe
PID 2004 wrote to memory of 1396	2004	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\receipt#.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:2004

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\PLgBtFniEj.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:4200

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\receipt#.js
2⤵
- Creates scheduled task(s)
PID:1396

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

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Downloads

C:\Users\Admin\AppData\Roaming\PLgBtFniEj.js
Filesize
15KB

MD5
f57b49d4468a8fbf4d775b1e7b86bac6

SHA1
5722a00fd5290541667c7c49fd11fa9efe739ebb

SHA256
12c555961758332d34fe96bed18ca34aeffa81d64dfa651825ce505d36a92f73

SHA512
4187de1abc4991d1ec8982c755b7d3dfdc032e884a1196d38d8be4f26c97ae51ff721867f7ac1ed72302c3833b1787d5685b9163b0a34b7917a4178d898e13ca

Download Submit
memory/1396-132-0x0000000000000000-mapping.dmp

Download
memory/4200-130-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads