vjw0rm | 4217f9176e8f2754b10d40ead7144a9eaa1fd6a2ce038878342613ffb0f1dcfc

General

Target

Documents.js
Size

50KB
MD5

256c38011ce7708a1f96f7f4d8318cea
SHA1

766aed3aebcf778687879eef9e4d7da4d8142360
SHA256

4217f9176e8f2754b10d40ead7144a9eaa1fd6a2ce038878342613ffb0f1dcfc
SHA512

b738c4115ac22f0f105038bc775f542621038d4cfa8226926b7f305fc31932a3f31bb3934dd127f0a574e124689a1ca9e581f2e5f82c28307eb8d4d7b77f9f31

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 43 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
6	1532	wscript.exe
7	1368	wscript.exe
8	1368	wscript.exe
9	1532	wscript.exe
12	1368	wscript.exe
13	1368	wscript.exe
15	1532	wscript.exe
17	1368	wscript.exe
18	1368	wscript.exe
20	1532	wscript.exe
22	1368	wscript.exe
23	1532	wscript.exe
25	1368	wscript.exe
26	1368	wscript.exe
28	1532	wscript.exe
29	1368	wscript.exe
31	1368	wscript.exe
32	1532	wscript.exe
34	1368	wscript.exe
36	1368	wscript.exe
38	1532	wscript.exe
39	1368	wscript.exe
41	1532	wscript.exe
42	1368	wscript.exe
44	1368	wscript.exe
46	1532	wscript.exe
47	1368	wscript.exe
48	1368	wscript.exe
50	1368	wscript.exe
52	1532	wscript.exe
53	1368	wscript.exe
54	1532	wscript.exe
56	1368	wscript.exe
58	1368	wscript.exe
59	1532	wscript.exe
61	1368	wscript.exe
62	1368	wscript.exe
65	1532	wscript.exe
66	1368	wscript.exe
67	1368	wscript.exe
68	1532	wscript.exe
70	1368	wscript.exe
72	1368	wscript.exe

Drops startup file 4 IoCs

Processes:

wscript.exewscript.exe

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

Adds Run key to start application 2 TTPs 6 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exewscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\TTTTttttttttttestttt = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\TTTTttttttttttestttt.vbs\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TTTTttttttttttestttt = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\TTTTttttttttttestttt.vbs\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Roaming\\EahJBmavNO.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 1928 wrote to memory of 1532	1928	wscript.exe	wscript.exe
PID 1928 wrote to memory of 1532	1928	wscript.exe	wscript.exe
PID 1928 wrote to memory of 1532	1928	wscript.exe	wscript.exe
PID 1928 wrote to memory of 1368	1928	wscript.exe	wscript.exe
PID 1928 wrote to memory of 1368	1928	wscript.exe	wscript.exe
PID 1928 wrote to memory of 1368	1928	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Documents.js
1⤵
- Suspicious use of WriteProcessMemory
PID:1928

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\EahJBmavNO.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1532

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" "C:\Users\Admin\AppData\Local\Temp\TTTTttttttttttestttt.vbs"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
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\Local\Temp\TTTTttttttttttestttt.vbs
Filesize
13KB

MD5
ddb4cbf2022f72131c17307ad516de5d

SHA1
7a600bcb884444efcc5c9f4f9b63c6b89c9367b8

SHA256
c19033f4a897abe7fba27db9daf125f31ff9317da5faec56c24a054b55f4bfc5

SHA512
63fb993d5068c0ffbdcb75e7bc4a413b213657eae6fa40ddf2f47c42916e6133f1ab8ee11ea46220b211c819ac450a6da1a26a1fa1904083df1d8ad976e052a6

Download Submit
C:\Users\Admin\AppData\Roaming\EahJBmavNO.js
Filesize
10KB

MD5
3a19cd2d04b6ade45a7d5e7b5c9d2708

SHA1
091400b8f5f1acdd5172a33ff737496a63ea0ac1

SHA256
2fcd2ccf95c78cd83c8dbbb396aacfa7ec0287828cf34797b0935656fc9bf2a6

SHA512
80061f3114eb1254c49c0dbd508b0e711025778ba2a4ba00e40eba66f6ddab199420cd891734b61b03911baa9f374f7f4f4227fa5d7c6ff0216294a7c721b813

Download Submit
memory/1368-56-0x0000000000000000-mapping.dmp

Download
memory/1532-55-0x0000000000000000-mapping.dmp

Download
memory/1928-54-0x000007FEFBF21000-0x000007FEFBF23000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads