vjw0rm | 81f1d78c95edb2952a13f5ec068a3b30be04c4e128c6348bc07439a4f4fdd82c

General

Target

1ranf80w5x.js
Size

6KB
MD5

737ab81779d546b3ccc019569acb0269
SHA1

d746edccdfb5ba9f357ab6a6281c1c09c25b5912
SHA256

81f1d78c95edb2952a13f5ec068a3b30be04c4e128c6348bc07439a4f4fdd82c
SHA512

961b5f3f1913595352914bd159c34d3767b96494a5be211cd69dbe64f921b29a12321498298ee0c93e3b2c85a443c0fd9b4593dc73fe3266e8517e17e5bfa951

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 64 IoCs

Processes:

wscript.exe

flow	pid	process
6	1624	wscript.exe
7	1624	wscript.exe
8	1624	wscript.exe
9	1624	wscript.exe
10	1624	wscript.exe
11	1624	wscript.exe
13	1624	wscript.exe
14	1624	wscript.exe
15	1624	wscript.exe
16	1624	wscript.exe
17	1624	wscript.exe
18	1624	wscript.exe
20	1624	wscript.exe
21	1624	wscript.exe
22	1624	wscript.exe
23	1624	wscript.exe
24	1624	wscript.exe
25	1624	wscript.exe
27	1624	wscript.exe
28	1624	wscript.exe
29	1624	wscript.exe
30	1624	wscript.exe
31	1624	wscript.exe
32	1624	wscript.exe
34	1624	wscript.exe
35	1624	wscript.exe
36	1624	wscript.exe
37	1624	wscript.exe
38	1624	wscript.exe
39	1624	wscript.exe
41	1624	wscript.exe
42	1624	wscript.exe
43	1624	wscript.exe
44	1624	wscript.exe
45	1624	wscript.exe
46	1624	wscript.exe
48	1624	wscript.exe
49	1624	wscript.exe
50	1624	wscript.exe
51	1624	wscript.exe
52	1624	wscript.exe
53	1624	wscript.exe
55	1624	wscript.exe
56	1624	wscript.exe
57	1624	wscript.exe
58	1624	wscript.exe
59	1624	wscript.exe
60	1624	wscript.exe
62	1624	wscript.exe
63	1624	wscript.exe
64	1624	wscript.exe
65	1624	wscript.exe
66	1624	wscript.exe
67	1624	wscript.exe
69	1624	wscript.exe
70	1624	wscript.exe
71	1624	wscript.exe
72	1624	wscript.exe
73	1624	wscript.exe
74	1624	wscript.exe
76	1624	wscript.exe
77	1624	wscript.exe
78	1624	wscript.exe
79	1624	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\1ranf80w5x.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1ranf80w5x.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1ranf80w5x.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-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\GF5EHB4I0U = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\1ranf80w5x.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\GF5EHB4I0U = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\1ranf80w5x.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 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1640 schtasks.exe
548 schtasks.exe

pid	process
1640	schtasks.exe
548	schtasks.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

wscript.exetaskeng.exeWScript.exe

description	pid	process	target process
PID 1624 wrote to memory of 1640	1624	wscript.exe	schtasks.exe
PID 1624 wrote to memory of 1640	1624	wscript.exe	schtasks.exe
PID 1624 wrote to memory of 1640	1624	wscript.exe	schtasks.exe
PID 848 wrote to memory of 1968	848	taskeng.exe	WScript.exe
PID 848 wrote to memory of 1968	848	taskeng.exe	WScript.exe
PID 848 wrote to memory of 1968	848	taskeng.exe	WScript.exe
PID 1968 wrote to memory of 548	1968	WScript.exe	schtasks.exe
PID 1968 wrote to memory of 548	1968	WScript.exe	schtasks.exe
PID 1968 wrote to memory of 548	1968	WScript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\1ranf80w5x.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1624

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\1ranf80w5x.js
2⤵
- Creates scheduled task(s)
PID:1640

C:\Windows\system32\taskeng.exe
taskeng.exe {8C6BF541-66E5-443F-8DA9-F8114B9AAF56} S-1-5-21-2455352368-1077083310-2879168483-1000:QWOCTUPM\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:848

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Admin\AppData\Local\Temp\1ranf80w5x.js"
2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1968

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\1ranf80w5x.js
3⤵
- Creates scheduled task(s)
PID:548

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1ranf80w5x.js
MD5
737ab81779d546b3ccc019569acb0269

SHA1
d746edccdfb5ba9f357ab6a6281c1c09c25b5912

SHA256
81f1d78c95edb2952a13f5ec068a3b30be04c4e128c6348bc07439a4f4fdd82c

SHA512
961b5f3f1913595352914bd159c34d3767b96494a5be211cd69dbe64f921b29a12321498298ee0c93e3b2c85a443c0fd9b4593dc73fe3266e8517e17e5bfa951

Download Submit
memory/548-62-0x0000000000000000-mapping.dmp

Download
memory/848-60-0x000007FEFC031000-0x000007FEFC033000-memory.dmp

Filesize
8KB

Download
memory/1640-59-0x0000000000000000-mapping.dmp

Download
memory/1968-61-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads