vjw0rm | 66555e27267457b1ea719fb4ba3ca9412640b52019926ab2103ab331fab20bfb

General

Target

receipt.js
Size

19KB
MD5

c12a75906e13948499a20fdbdd20a84f
SHA1

b972af62f4a356f022f2f7c1e82e474d7d0ab177
SHA256

66555e27267457b1ea719fb4ba3ca9412640b52019926ab2103ab331fab20bfb
SHA512

6b9b68f5b570a28b144c7580e8b896514e7b08fb164324ef5b7f9c33d43756b750312081f53c3dca9242add8205cef2d681ae08eeb845c12b0e585380cea6efa

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

C2

http://warrr.duckdns.org:9997

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
8	844	wscript.exe
9	820	wscript.exe
10	844	wscript.exe
12	844	wscript.exe
14	844	wscript.exe
16	844	wscript.exe
17	844	wscript.exe
20	844	wscript.exe
21	844	wscript.exe
23	844	wscript.exe
25	844	wscript.exe
27	844	wscript.exe
28	844	wscript.exe
31	844	wscript.exe
32	844	wscript.exe
34	844	wscript.exe

Drops startup file 3 IoCs

Processes:

wscript.exewscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\egwgcQTTsK.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\egwgcQTTsK.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\receipt.js	wscript.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exewscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\RV7KJCEOJC = "\"C:\\Users\\Admin\\AppData\\Roaming\\receipt.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\egwgcQTTsK.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
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1156 schtasks.exe

pid	process
1156	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 820 wrote to memory of 844	820	wscript.exe	wscript.exe
PID 820 wrote to memory of 844	820	wscript.exe	wscript.exe
PID 820 wrote to memory of 844	820	wscript.exe	wscript.exe
PID 820 wrote to memory of 1156	820	wscript.exe	schtasks.exe
PID 820 wrote to memory of 1156	820	wscript.exe	schtasks.exe
PID 820 wrote to memory of 1156	820	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\receipt.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:820

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\egwgcQTTsK.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:844

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\receipt.js
2⤵
- Creates scheduled task(s)
PID:1156

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

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\egwgcQTTsK.js
MD5
495e6539ceaf9dd7dedc8782c17b995e

SHA1
41dd327e945fc21d7e4803e213295511c612bdd8

SHA256
e4c006bd48649e4ff67e782db5724881aaec82ecb1cd2929d9454a04ba17a406

SHA512
44cae0658351eee91163a8bdd431c72266d528606b0517b606a85623c6eba78b4299a844bcc4bec41d41091c456792a6e39c16a694dae41219532e20999f2378

Download Submit
memory/820-55-0x000007FEFB731000-0x000007FEFB733000-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