vjw0rm | 6170f6b6d0e8b91a5fd037a7322bfe80471b982c066fd1ea64e588eaad3147b1

General

Target

PO.230029.js
Size

3.5MB
MD5

2760f9a45e9e74c4eedfe9b0ee918e6b
SHA1

277c62b14c987da3cf4c9e7d4ee4478cf61580c7
SHA256

18827fed6ecd5e4d2c548dcad1eb21730a95f52b578bed75e3003b06a7390482
SHA512

45aa5c7a51f644e82fc436029187fef542ee9a3be80ed8c3535c0383c938509f4d3f4414c97328430092bec1eed5a5105d47f45f36664f49c63a146b12a9fb7e
SSDEEP

6144:nDKcCNX9cMH0svW5he7NbWSRU9qB02HkyjM6P:nDupdf

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 35 IoCs

flow	pid	Process
10	1360	wscript.exe
11	824	wscript.exe
12	1116	wscript.exe
13	1116	wscript.exe
15	1360	wscript.exe
17	1116	wscript.exe
18	1360	wscript.exe
23	824	wscript.exe
25	1116	wscript.exe
27	1360	wscript.exe
28	1116	wscript.exe
30	1360	wscript.exe
31	1116	wscript.exe
33	1360	wscript.exe
37	824	wscript.exe
39	1116	wscript.exe
40	1360	wscript.exe
42	1360	wscript.exe
44	1360	wscript.exe
48	1116	wscript.exe
50	824	wscript.exe
52	1360	wscript.exe
54	1116	wscript.exe
56	1360	wscript.exe
58	1116	wscript.exe
61	1360	wscript.exe
62	1116	wscript.exe
64	824	wscript.exe
66	1360	wscript.exe
68	1116	wscript.exe
71	1360	wscript.exe
72	1116	wscript.exe
75	1360	wscript.exe
76	1116	wscript.exe
78	824	wscript.exe

Drops startup file 5 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PO.230029.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PO.230029.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\EgxzFQzayc.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\EgxzFQzayc.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\EgxzFQzayc.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\USER\S-1-5-21-3385717845-2518323428-350143044-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\PO = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\PO.230029.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PO = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\PO.230029.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\PO = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\PO.230029.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PO = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\PO.230029.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 9 IoCs

description	pid	Process	procid_target
PID 1144 wrote to memory of 1360	1144	wscript.exe	28
PID 1144 wrote to memory of 1360	1144	wscript.exe	28
PID 1144 wrote to memory of 1360	1144	wscript.exe	28
PID 1144 wrote to memory of 824	1144	wscript.exe	29
PID 1144 wrote to memory of 824	1144	wscript.exe	29
PID 1144 wrote to memory of 824	1144	wscript.exe	29
PID 824 wrote to memory of 1116	824	wscript.exe	30
PID 824 wrote to memory of 1116	824	wscript.exe	30
PID 824 wrote to memory of 1116	824	wscript.exe	30

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\PO.230029.js
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1144
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\EgxzFQzayc.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:1360
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\PO.230029.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:824
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\EgxzFQzayc.js"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    PID:1116

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\EgxzFQzayc.js

Filesize
346KB

MD5
5aa142c9e33d0c5d72f0fc4951e6c080

SHA1
b20626787b7e3f16c2c8aa46489c60002be05b79

SHA256
d0dbf9b445cc01f36e0d7b3483ade4479a2f1b54bf531716330b32b0d904d303

SHA512
a8c9769fc98a8e867b0b5e8bd73fc602f906d63ead71ad85da084c00c32e0a12dd8c124d82fffe8117fc325a7325e2e9caf2e3e49a6ebed2cd5daf6d27b60e77

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

Filesize
346KB

MD5
5aa142c9e33d0c5d72f0fc4951e6c080

SHA1
b20626787b7e3f16c2c8aa46489c60002be05b79

SHA256
d0dbf9b445cc01f36e0d7b3483ade4479a2f1b54bf531716330b32b0d904d303

SHA512
a8c9769fc98a8e867b0b5e8bd73fc602f906d63ead71ad85da084c00c32e0a12dd8c124d82fffe8117fc325a7325e2e9caf2e3e49a6ebed2cd5daf6d27b60e77

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PO.230029.js

Filesize
3.5MB

MD5
2760f9a45e9e74c4eedfe9b0ee918e6b

SHA1
277c62b14c987da3cf4c9e7d4ee4478cf61580c7

SHA256
18827fed6ecd5e4d2c548dcad1eb21730a95f52b578bed75e3003b06a7390482

SHA512
45aa5c7a51f644e82fc436029187fef542ee9a3be80ed8c3535c0383c938509f4d3f4414c97328430092bec1eed5a5105d47f45f36664f49c63a146b12a9fb7e

Download Submit
C:\Users\Admin\AppData\Roaming\PO.230029.js

Filesize
3.5MB

MD5
2760f9a45e9e74c4eedfe9b0ee918e6b

SHA1
277c62b14c987da3cf4c9e7d4ee4478cf61580c7

SHA256
18827fed6ecd5e4d2c548dcad1eb21730a95f52b578bed75e3003b06a7390482

SHA512
45aa5c7a51f644e82fc436029187fef542ee9a3be80ed8c3535c0383c938509f4d3f4414c97328430092bec1eed5a5105d47f45f36664f49c63a146b12a9fb7e

Download Submit

Analysis

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