vjw0rm | 9fd94aca819af4ae40e78aaebc42c92af94539135ccd50839626a2565106f9e9

General

Target

P I09045090979.jpg.js
Size

200KB
MD5

9a7ad3d3d82e36a33e673af5a6ad66ea
SHA1

9b4683b9ff01722e54bca2b88789ff6304978e32
SHA256

9fd94aca819af4ae40e78aaebc42c92af94539135ccd50839626a2565106f9e9
SHA512

1412efe123cba05e5982a379bf8ee3afcc3fb384dbd0b9efe739d8ecbc30823dd26be1198d71cb594dedeaf2e26e757bb17e67d6b19680e36b2a8ba970df8479

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 18 IoCs

Processes:

WScript.exe

flow	pid	process
8	1320	WScript.exe
17	1320	WScript.exe
20	1320	WScript.exe
21	1320	WScript.exe
22	1320	WScript.exe
24	1320	WScript.exe
25	1320	WScript.exe
26	1320	WScript.exe
27	1320	WScript.exe
28	1320	WScript.exe
29	1320	WScript.exe
30	1320	WScript.exe
31	1320	WScript.exe
32	1320	WScript.exe
33	1320	WScript.exe
34	1320	WScript.exe
35	1320	WScript.exe
36	1320	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\YphdXIgjJq.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\YphdXIgjJq.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-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\YphdXIgjJq.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
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2868 1760 WerFault.exe javaw.exe
Modifies registry class 1 IoCs

Processes:

wscript.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings wscript.exe

pid	pid_target	process	target process
2868	1760	WerFault.exe	javaw.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings	wscript.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

WerFault.exe

pid	process
2868	WerFault.exe
2868	WerFault.exe
2868	WerFault.exe
2868	WerFault.exe
2868	WerFault.exe
2868	WerFault.exe
2868	WerFault.exe
2868	WerFault.exe
2868	WerFault.exe
2868	WerFault.exe
2868	WerFault.exe
2868	WerFault.exe
2868	WerFault.exe
2868	WerFault.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 2868 WerFault.exe

description	pid	process
Token: SeDebugPrivilege	2868	WerFault.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 3988 wrote to memory of 1320	3988	wscript.exe	WScript.exe
PID 3988 wrote to memory of 1320	3988	wscript.exe	WScript.exe
PID 3988 wrote to memory of 1760	3988	wscript.exe	javaw.exe
PID 3988 wrote to memory of 1760	3988	wscript.exe	javaw.exe

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\P I09045090979.jpg.js"
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3988

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\YphdXIgjJq.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1320

C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe
"C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\udvlnwqno.txt"
2⤵
PID:1760

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1760 -s 352
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2868

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\YphdXIgjJq.js
MD5
fa16c7f592354e070b5c0fb6cdfc3272

SHA1
6c3d396632bfb1d78777d921dfc9feada2722225

SHA256
5207094802b5e244704fe007c0a86485f08eead9cda6c6776b8b7972c3af8e68

SHA512
a9746fd10a469f2f8ead79338fb2ec2e6a50a7f27f66de547baeac6951726f680b233d13149296196b188d483ed809bac40fa95843b62385a3583c89a1a5ea3c

Download Submit
C:\Users\Admin\AppData\Roaming\udvlnwqno.txt
MD5
2e458a59025b390fbdf7d3717314b507

SHA1
d5a84f501bfa81682ebde5e31a68794140141785

SHA256
6b723bd260b53c68c716ef218c78718d3e99ab4d4238a4bd823fd0cd6ec8007b

SHA512
2b463bc4ef98264560abad47053549c463fc9ee098c97cd60d58c959ba67f4ddf2ca60856f6564802a9f056740fbedbb6bdc829388c136c13b334563465d1f22

Download Submit
memory/1320-114-0x0000000000000000-mapping.dmp

Download
memory/1760-116-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads