vjw0rm | 69fb35e904fe4c93486d3eafc2828feb26b19fa2fc41a0e45aceeff67f8e81ae

General

Target

新命令__________.PDF.js
Size

207KB
MD5

9154158d95df39303de36b475a790529
SHA1

b79ad43d110887b9302bbfca092517a1fb0f43f3
SHA256

ce8e23a1309e4fbe54a48d36c5c68af97df72073acce4a930df3246a34a75f32
SHA512

de36f4d45c7b03f8cb70498bfd7a9285303814eb20a9a7f09a7855db6daacf817e4e6a0f63f6e63dd46b8bff7d4704155daa4fb2e9ca5a4902957dead3ee7a82

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
7	1712	WScript.exe
8	1712	WScript.exe
9	1712	WScript.exe
11	1712	WScript.exe
12	1712	WScript.exe
13	1712	WScript.exe
15	1712	WScript.exe
16	1712	WScript.exe
17	1712	WScript.exe
19	1712	WScript.exe
20	1712	WScript.exe
21	1712	WScript.exe
23	1712	WScript.exe
24	1712	WScript.exe
25	1712	WScript.exe
27	1712	WScript.exe
28	1712	WScript.exe
29	1712	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\WOChiHyFPM.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WOChiHyFPM.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-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Windows\CurrentVersion\Run	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\WOChiHyFPM.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

1368 2028 WerFault.exe javaw.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

WerFault.exe

pid process

1368 WerFault.exe
1368 WerFault.exe
1368 WerFault.exe
1368 WerFault.exe
1368 WerFault.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 1368 WerFault.exe

pid	pid_target	process	target process
1368	2028	WerFault.exe	javaw.exe

pid	process
1368	WerFault.exe
1368	WerFault.exe
1368	WerFault.exe
1368	WerFault.exe
1368	WerFault.exe

description	pid	process
Token: SeDebugPrivilege	1368	WerFault.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

wscript.exejavaw.exe

description	pid	process	target process
PID 1080 wrote to memory of 1712	1080	wscript.exe	WScript.exe
PID 1080 wrote to memory of 1712	1080	wscript.exe	WScript.exe
PID 1080 wrote to memory of 1712	1080	wscript.exe	WScript.exe
PID 1080 wrote to memory of 2028	1080	wscript.exe	javaw.exe
PID 1080 wrote to memory of 2028	1080	wscript.exe	javaw.exe
PID 1080 wrote to memory of 2028	1080	wscript.exe	javaw.exe
PID 2028 wrote to memory of 1368	2028	javaw.exe	WerFault.exe
PID 2028 wrote to memory of 1368	2028	javaw.exe	WerFault.exe
PID 2028 wrote to memory of 1368	2028	javaw.exe	WerFault.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\新命令__________.PDF.js
1⤵
- Suspicious use of WriteProcessMemory
PID:1080

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\WOChiHyFPM.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1712

C:\Program Files\Java\jre7\bin\javaw.exe
"C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\agmymyvv.txt"
2⤵
- Suspicious use of WriteProcessMemory
PID:2028

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2028 -s 140
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1368

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\WOChiHyFPM.js
MD5
5f1405a47e8cf0bc0188332a4a791761

SHA1
638fe4be43f13d79266be5ee35b7879fdeafc71a

SHA256
d9d12a49414db2909da558bed4013e0987fe61140f3c4e17501800ac32d422f7

SHA512
d2e722dea389123c24534bc661352a7bf42188b47428bb24f1507db4b68f0d47e49b3f95d8cab3f7d5470aa31f51fa72be5d63a4560e785d04860d2a5bd54313

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

SHA1
d5a84f501bfa81682ebde5e31a68794140141785

SHA256
6b723bd260b53c68c716ef218c78718d3e99ab4d4238a4bd823fd0cd6ec8007b

SHA512
2b463bc4ef98264560abad47053549c463fc9ee098c97cd60d58c959ba67f4ddf2ca60856f6564802a9f056740fbedbb6bdc829388c136c13b334563465d1f22

Download Submit
memory/1080-53-0x000007FEFC331000-0x000007FEFC333000-memory.dmp

Filesize
8KB

Download
memory/1368-59-0x0000000000000000-mapping.dmp

Download
memory/1368-61-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/1712-54-0x0000000000000000-mapping.dmp

Download
memory/2028-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads