vjw0rm | fd7d8b358ce1f40005f46b6e297b224c35f26d9a267d91c263b25472461feafd

General

Target

Invoice.js
Size

29KB
MD5

b52ee9fc1494a1c1df13f015fa582808
SHA1

d4cb49d300c4caf339e6db3d9e977800799f8b25
SHA256

fd7d8b358ce1f40005f46b6e297b224c35f26d9a267d91c263b25472461feafd
SHA512

882bb1cd72b505055748776800f5aa0b2aade2e01e98e5e3ce5756c8d00e9ae29fa766638207da356384fe6a3a19034e8ec3e80355358f6293d0b3c2dd8a4dff

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

C2

http://104.168.7.110:7974

http://franmhort.duia.ro:8152

Signatures

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

Blocklisted process makes network request 16 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
6	1748	wscript.exe
7	1924	wscript.exe
8	1748	wscript.exe
10	1748	wscript.exe
13	1748	wscript.exe
14	1748	wscript.exe
15	1748	wscript.exe
16	1924	wscript.exe
19	1748	wscript.exe
20	1748	wscript.exe
22	1748	wscript.exe
24	1748	wscript.exe
25	1748	wscript.exe
26	1748	wscript.exe
28	1748	wscript.exe
29	1748	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\gfpiBmTEHb.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\gfpiBmTEHb.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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Roaming\\gfpiBmTEHb.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run	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 3 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 1924 wrote to memory of 1748	1924	wscript.exe	wscript.exe
PID 1924 wrote to memory of 1748	1924	wscript.exe	wscript.exe
PID 1924 wrote to memory of 1748	1924	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Invoice.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1924

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\gfpiBmTEHb.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1748

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\gfpiBmTEHb.js
Filesize
10KB

MD5
75f3821ef96d7cb3ee0be246db880526

SHA1
46b6a26d42bfde161932e3c5fb0976e2df827597

SHA256
e521b10f8ebb515cd835c0e87306205bd1e1b5f7259159f9afcfba11e435c56d

SHA512
f368bb446aa54a9663d8d8f1553f103a970e59eb6a3415f6878def4b994d24ad52d506475bb58d4f91ca98d5b402c2678d1e0b5d23fd7e71dc9dbab591e77600

Download Submit
memory/1748-55-0x0000000000000000-mapping.dmp

Download
memory/1924-54-0x000007FEFBC11000-0x000007FEFBC13000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads