vjw0rm | 2cf7cf0ac77b25eccc61fea38629e1a2de4547aa1d4eaae4f7885fdc0e2194a4

General

Target

eVoucher.js
Size

10KB
MD5

4a86c0250f53d61920c72434e80ac836
SHA1

52d5178d979640301456d353bb1d3a4cd9fe56c8
SHA256

2cf7cf0ac77b25eccc61fea38629e1a2de4547aa1d4eaae4f7885fdc0e2194a4
SHA512

ddb19e6e340cedd29ea5735caffd7f9e47825c904ce09896d6d6a0680262a371c597ac1e019b55bed12d424c2bc8df5a56940f68edaa3a74e361016abdfc41ad

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

C2

http://zeegod.duckdns.org:9001

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Blocklisted process makes network request 1 IoCs

Processes:

wscript.exe

flow pid process

20 4792 wscript.exe

flow	pid	process
20	4792	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-1-5-21-2403053463-4052593947-3703345493-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\LMOXHX511V = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\eVoucher.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe

Drops file in Windows directory 6 IoCs

Processes:

svchost.exe

description	ioc	process
File opened for modification	C:\Windows\SoftwareDistribution\Download\0773690a1a8f21e8764e9177015857ad\pj5OoD7hJ+dBGy+3XOjLT8WsuYwervv\BIT6F4D.tmp	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\Download\0773690a1a8f21e8764e9177015857ad\pj5OoD7hJ+dBGy+3XOjLT8WsuYwervv\LZOCjtiHKk8=	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\Download\0773690a1a8f21e8764e9177015857ad\BIT6FF9.tmp	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\Download\0773690a1a8f21e8764e9177015857ad\a3f602ea4d534d006919a2613d91f9506b383314	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\Download\0773690a1a8f21e8764e9177015857ad\pj5OoD7hJ+dBGy+3XOjLT8WsuYwervv\BIT77CA.tmp	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\Download\0773690a1a8f21e8764e9177015857ad\BIT7877.tmp	svchost.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 4792 wrote to memory of 1540	4792	wscript.exe	wscript.exe
PID 4792 wrote to memory of 1540	4792	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\eVoucher.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:4792

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\JSkhHqaBqS.js"
2⤵
PID:1540

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
1⤵
- Drops file in Windows directory
PID:1200

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\JSkhHqaBqS.js
MD5
8ccd90975fcb67cfd9f799c1a57a005c

SHA1
22ec3e1d29bf2abf53c5a8b0ec5d13caadce145f

SHA256
24f109d42332b7fc72a66a97697642914865a27c0d7c495e0d5f6a4c6b63b04e

SHA512
e1f32f967ef742c1b9605f52cc9d7cd43b1b4658d9de94e38a2c69fc3e9b7055fc645b51ecc8f4d6acff45d3be17061ef1101975ced9e7489332770c1713fbe6

Download Submit
memory/1200-135-0x0000018CB3F70000-0x0000018CB3F80000-memory.dmp

Filesize
64KB

Download
memory/1200-136-0x0000018CB4860000-0x0000018CB4870000-memory.dmp

Filesize
64KB

Download
memory/1200-137-0x0000018CB4BF0000-0x0000018CB4BF4000-memory.dmp

Filesize
16KB

Download
memory/1200-138-0x0000018CB7190000-0x0000018CB7194000-memory.dmp

Filesize
16KB

Download
memory/1200-139-0x0000018CB70C0000-0x0000018CB70C4000-memory.dmp

Filesize
16KB

Download
memory/1200-140-0x0000018CB7200000-0x0000018CB7204000-memory.dmp

Filesize
16KB

Download
memory/1200-141-0x0000018CB70C0000-0x0000018CB70C1000-memory.dmp

Filesize
4KB

Download
memory/1200-142-0x0000018CB7240000-0x0000018CB7244000-memory.dmp

Filesize
16KB

Download
memory/1200-143-0x0000018CB7240000-0x0000018CB7244000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads