vjw0rm | ba43508418c1890886dd6c68e7dc0d0a8291c147c3919147d0ba89b29e427566

General

Target

2021_11_17_AB2106159.js
Size

272KB
MD5

1fa10808ee55f1de160b3628fde35526
SHA1

5422d9396f3b782fc88dfba492a51560a9e98275
SHA256

ba43508418c1890886dd6c68e7dc0d0a8291c147c3919147d0ba89b29e427566
SHA512

ed6e4c317560165f13dfdaf7839a187c38e2e67255753e11f5c3f090a595a44991a2394210439ad9554e3f501ab12621413b44409ea5d348fbaa0533abba565b

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Signatures

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

Blocklisted process makes network request 9 IoCs

Processes:

WScript.exe

flow	pid	process
5	980	WScript.exe
6	980	WScript.exe
13	980	WScript.exe
15	980	WScript.exe
16	980	WScript.exe
17	980	WScript.exe
19	980	WScript.exe
20	980	WScript.exe
21	980	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\xRYuhuOAyv.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xRYuhuOAyv.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-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows\CurrentVersion\Run	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\xRYuhuOAyv.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 6 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 784 wrote to memory of 980	784	wscript.exe	WScript.exe
PID 784 wrote to memory of 980	784	wscript.exe	WScript.exe
PID 784 wrote to memory of 980	784	wscript.exe	WScript.exe
PID 784 wrote to memory of 1340	784	wscript.exe	javaw.exe
PID 784 wrote to memory of 1340	784	wscript.exe	javaw.exe
PID 784 wrote to memory of 1340	784	wscript.exe	javaw.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\2021_11_17_AB2106159.js
1⤵
- Suspicious use of WriteProcessMemory
PID:784

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\xRYuhuOAyv.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:980

C:\Program Files\Java\jre7\bin\javaw.exe
"C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\dquzxsycgx.txt"
2⤵
PID:1340

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\dquzxsycgx.txt
MD5
e5c57969a139fa14269758cb8cc8f9a7

SHA1
432f65c2b1da28b421eac3956d8cefd72f04ae6a

SHA256
b2b661ff89ba10a5a27a06df63a9ffd158b254aff5f38a96ff5c1f6344959501

SHA512
526f7f1717488c87457353d78480ec590d5abf5bf6bdc697dc92433c26a949c649b94bd83cfc7891c24fbc5e96414793fb9a192f77a3ded9ad434d8524a215d5

Download Submit
C:\Users\Admin\AppData\Roaming\xRYuhuOAyv.js
MD5
77003839125047ffd125864a341da2c8

SHA1
fc0f65ee6753d601c81ca684516d59366e123022

SHA256
663031fd5b14f95adef162804c059269979693700b14a7a551d28bde04298372

SHA512
9c90e748b94ed8d7fc65f80470df44fbcc1c3d0068232a9fd25b87bcecce48b54de17ac226db416173e5f8b6538695b67a0b9e8e876a5da44393557c0ffcbaad

Download Submit
memory/980-55-0x0000000000000000-mapping.dmp

Download
memory/1340-65-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/1340-58-0x000007FEFBE91000-0x000007FEFBE93000-memory.dmp

Filesize
8KB

Download
memory/1340-60-0x00000000022A0000-0x0000000002510000-memory.dmp

Filesize
2.4MB

Download
memory/1340-61-0x00000000022A0000-0x0000000002510000-memory.dmp

Filesize
2.4MB

Download
memory/1340-62-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/1340-57-0x0000000000000000-mapping.dmp

Download
memory/1340-87-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/1340-89-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/1340-100-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/1340-105-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/1340-117-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/1340-119-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/1340-121-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads