vjw0rm | fd12bc99829e1bf6b3d47705419e33055763a3a375e3069ff5e3d9654c5e461b

Analysis

max time kernel
167s
max time network
182s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
16/01/2023, 08:47

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee.js
Size

260KB
MD5

d4b928defdafd9c54fe69160ba650cc8
SHA1

041715d3775045016dfbebb68f8e4964c8ad123a
SHA256

7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee
SHA512

a77cc501a0fb679cc407f97e84af603f90dd8451ea66cf49a1cc76698f1fcaddb6f28f08aa090f38f9004763ccc020d16a069ae5f9ec609a982c39042db668c4
SSDEEP

6144:EPP/pyxHpiGSxCXJZTv+jCtMX1/MJIUDKi:EPXpyR17r+jCtMl/kD9

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 53 IoCs

flow	pid	Process
9	864	wscript.exe
10	1028	wscript.exe
12	1492	wscript.exe
14	864	wscript.exe
15	864	wscript.exe
16	1492	wscript.exe
18	1028	wscript.exe
20	864	wscript.exe
23	1492	wscript.exe
25	1028	wscript.exe
28	864	wscript.exe
30	1028	wscript.exe
32	1492	wscript.exe
33	864	wscript.exe
35	1028	wscript.exe
36	1492	wscript.exe
38	864	wscript.exe
40	864	wscript.exe
41	1028	wscript.exe
44	1492	wscript.exe
47	864	wscript.exe
49	1492	wscript.exe
51	1028	wscript.exe
52	864	wscript.exe
54	1492	wscript.exe
57	1028	wscript.exe
58	864	wscript.exe
59	864	wscript.exe
60	1492	wscript.exe
62	1028	wscript.exe
66	864	wscript.exe
69	1028	wscript.exe
71	1492	wscript.exe
72	864	wscript.exe
73	1028	wscript.exe
74	1492	wscript.exe
76	864	wscript.exe
77	1028	wscript.exe
79	1492	wscript.exe
81	864	wscript.exe
85	864	wscript.exe
86	1028	wscript.exe
89	1492	wscript.exe
90	864	wscript.exe
92	1492	wscript.exe
93	1028	wscript.exe
95	864	wscript.exe
98	1492	wscript.exe
99	1028	wscript.exe
101	864	wscript.exe
104	864	wscript.exe
105	1028	wscript.exe
107	1492	wscript.exe

Drops startup file 5 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\EZIcjnTabV.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\EZIcjnTabV.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\EZIcjnTabV.js	wscript.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee.js\""	wscript.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
7	ip-api.com

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 9 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 1028	1708	wscript.exe	28
PID 1708 wrote to memory of 1028	1708	wscript.exe	28
PID 1708 wrote to memory of 1028	1708	wscript.exe	28
PID 1708 wrote to memory of 864	1708	wscript.exe	29
PID 1708 wrote to memory of 864	1708	wscript.exe	29
PID 1708 wrote to memory of 864	1708	wscript.exe	29
PID 864 wrote to memory of 1492	864	wscript.exe	31
PID 864 wrote to memory of 1492	864	wscript.exe	31
PID 864 wrote to memory of 1492	864	wscript.exe	31

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee.js
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\EZIcjnTabV.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:1028
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:864
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\EZIcjnTabV.js"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    PID:1492

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee.js

Filesize
260KB

MD5
d4b928defdafd9c54fe69160ba650cc8

SHA1
041715d3775045016dfbebb68f8e4964c8ad123a

SHA256
7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee

SHA512
a77cc501a0fb679cc407f97e84af603f90dd8451ea66cf49a1cc76698f1fcaddb6f28f08aa090f38f9004763ccc020d16a069ae5f9ec609a982c39042db668c4

Download Submit
C:\Users\Admin\AppData\Roaming\EZIcjnTabV.js

Filesize
6KB

MD5
a46a00fce7c7561dd03f37519c548491

SHA1
d707d5893467538b1ef934900fa7953b0ba3be37

SHA256
db64faff8266eb46d6e649170da234562332aeb11b6e7adc3073739906a8592b

SHA512
61295739a668d5c286bce20c643e2b1498ffc2f4a2873177b655bf9b8fe534c041a12da95ffa0552e1b76ba2ad09344d5bfc70ba09e03a43d08f01a59f992f8c

Download Submit
C:\Users\Admin\AppData\Roaming\EZIcjnTabV.js

Filesize
6KB

MD5
a46a00fce7c7561dd03f37519c548491

SHA1
d707d5893467538b1ef934900fa7953b0ba3be37

SHA256
db64faff8266eb46d6e649170da234562332aeb11b6e7adc3073739906a8592b

SHA512
61295739a668d5c286bce20c643e2b1498ffc2f4a2873177b655bf9b8fe534c041a12da95ffa0552e1b76ba2ad09344d5bfc70ba09e03a43d08f01a59f992f8c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee.js

Filesize
260KB

MD5
d4b928defdafd9c54fe69160ba650cc8

SHA1
041715d3775045016dfbebb68f8e4964c8ad123a

SHA256
7a9d74c5d107f2c91ae6414674542a85136b310b3948319ffea6139226eaaaee

SHA512
a77cc501a0fb679cc407f97e84af603f90dd8451ea66cf49a1cc76698f1fcaddb6f28f08aa090f38f9004763ccc020d16a069ae5f9ec609a982c39042db668c4

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\EZIcjnTabV.js

Filesize
6KB

MD5
a46a00fce7c7561dd03f37519c548491

SHA1
d707d5893467538b1ef934900fa7953b0ba3be37

SHA256
db64faff8266eb46d6e649170da234562332aeb11b6e7adc3073739906a8592b

SHA512
61295739a668d5c286bce20c643e2b1498ffc2f4a2873177b655bf9b8fe534c041a12da95ffa0552e1b76ba2ad09344d5bfc70ba09e03a43d08f01a59f992f8c

Download Submit
memory/1708-54-0x000007FEFB6F1000-0x000007FEFB6F3000-memory.dmp

Filesize
8KB

Download