vjw0rm | f356566e43a72607bcb73734f5c3dd4b03117f42a03e0534b327e2fb4b3d7132

General

Target

PO docs.js
Size

167KB
MD5

ce75410067a95c5ceccf08f7487cf247
SHA1

e38edaf16c0b2e994fc65e5228912428c6fdffa3
SHA256

f356566e43a72607bcb73734f5c3dd4b03117f42a03e0534b327e2fb4b3d7132
SHA512

719977b1962ea8799e3cdb1b933efa6547dcc1a215ec97a544f522e903e6904df2e688463799dbf70ae89fb9a6ee485ab09b40fed342824c530513f34000b95c

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

C2

http://45.138.16.233:1985

Signatures

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

Blocklisted process makes network request 17 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
6	1060	wscript.exe
7	1968	wscript.exe
8	1060	wscript.exe
10	1060	wscript.exe
14	1060	wscript.exe
15	1060	wscript.exe
17	1060	wscript.exe
20	1060	wscript.exe
22	1060	wscript.exe
24	1060	wscript.exe
27	1060	wscript.exe
29	1060	wscript.exe
30	1060	wscript.exe
33	1060	wscript.exe
35	1060	wscript.exe
36	1060	wscript.exe
39	1060	wscript.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\aBjrxgvXiK.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\aBjrxgvXiK.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
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Roaming\\aBjrxgvXiK.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 3 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 1968 wrote to memory of 1060	1968	wscript.exe	wscript.exe
PID 1968 wrote to memory of 1060	1968	wscript.exe	wscript.exe
PID 1968 wrote to memory of 1060	1968	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\PO docs.js"
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1968

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\aBjrxgvXiK.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1060

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\aBjrxgvXiK.js
Filesize
59KB

MD5
e3091e4a999ec41da7d4d2ebadb7c8ef

SHA1
aecd036bbce0311cccdf65b0dea0400b772f1fa8

SHA256
dd87b61a5fba9e7e4af3fb26b117c7d7d2b5915f6e4e8d5b77b2b3eda23cc7da

SHA512
32628e545c43f6f8c9258ee17f4551732cddb8fa599fa510a849cce2f74abf5d89eeadd4b3db669d8786d23aeb44c82e773fafe5b31d8c23a1d845293d01f61e

Download Submit
memory/1060-55-0x0000000000000000-mapping.dmp

Download
memory/1968-54-0x000007FEFBD41000-0x000007FEFBD43000-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