vjw0rm | ae6fd665d99775c8880d301acec3edc28e44cf7e39338c5474533bb39dc3389c

General

Target

receipt.js
Size

166KB
MD5

3a6e3a42eda0c68307e16774cdb155c1
SHA1

1d72fb4eade35e91e7ced538e6b09a0860fb44a2
SHA256

ae6fd665d99775c8880d301acec3edc28e44cf7e39338c5474533bb39dc3389c
SHA512

5414eab172dcdf89f80153e1fae756f5b3bd7c6df410980040f158b083a875e530b6791af3157b0cb1648102ff247e9c5c0d357d4004230a70bfb26c4b4a55b3

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

C2

http://zeegod.duckdns.org:9003

Signatures

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

Blocklisted process makes network request 11 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
11	1948	wscript.exe
12	4028	wscript.exe
16	4028	wscript.exe
20	4028	wscript.exe
36	4028	wscript.exe
37	4028	wscript.exe
42	4028	wscript.exe
59	4028	wscript.exe
61	4028	wscript.exe
62	4028	wscript.exe
63	4028	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-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation wscript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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\receipt.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IlvAZLYKFN.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IlvAZLYKFN.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-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Roaming\\IlvAZLYKFN.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1NBCD3W1VR = "\"C:\\Users\\Admin\\AppData\\Roaming\\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

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 1948 wrote to memory of 4028	1948	wscript.exe	wscript.exe
PID 1948 wrote to memory of 4028	1948	wscript.exe	wscript.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:1948
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\IlvAZLYKFN.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:4028

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

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Downloads

C:\Users\Admin\AppData\Roaming\IlvAZLYKFN.js

Filesize
59KB

MD5
1c113559c1837ff6519961b920957478

SHA1
adb2cc9a44358d3bfaef0865494edfe5d33436a8

SHA256
2f4e644833bf0a9deb2252f7b13426e94722d1ff05dfa1fe4eb4b6e031284115

SHA512
731aaf49720ee68b32f96f391b35b2309acdd9821ecc791c0cedd7582dc420cad46215b7d8b3566a7c9a8bd41266aebb0268e28da9dd86d0d8eee572f02c0414

Download Submit
memory/4028-130-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads