vjw0rm | 6ac96e55099f4737d755e8caa4a03a4ad47faec1e7d133c3eb67c9a7057cd574

General

Target

34003198.pdf.js
Size

3.8MB
MD5

6812d6fba47adabb337563ca20fa84f8
SHA1

2ab5b312c71f2a60d53c16fad7690291ea6d5bb0
SHA256

6ac96e55099f4737d755e8caa4a03a4ad47faec1e7d133c3eb67c9a7057cd574
SHA512

63d595755ddb4f6b680fb41068f285fbfa6b87d508b7efe1c2f481e70722a2d08669f15b08e362e8db0fdbd85f84796d1f1dd48717c7bf6392055dbbedfeaeae
SSDEEP

49152:DVz6cMuHZupT2iUkP6qOyJdCt6x9loTDW6bK53j+ji48++M0fTW/JDy4TaERYUbB:V

Score

10^/10

vjw0rm wshrat persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

C2

http://jemyy.theworkpc.com:5401

Extracted

Family

wshrat

C2

http://94.156.71.108:1604

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
WSHRAT
WSHRAT is a variant of Houdini worm and has vbs and js variants.
trojan wshrat

Blocklisted process makes network request 28 IoCs

flow	pid	Process
16	2380	wscript.exe
17	2428	wscript.exe
18	3616	wscript.exe
34	2428	wscript.exe
35	2428	wscript.exe
36	2428	wscript.exe
37	2428	wscript.exe
40	2428	wscript.exe
51	2428	wscript.exe
53	2428	wscript.exe
54	2428	wscript.exe
55	2428	wscript.exe
56	2428	wscript.exe
63	2428	wscript.exe
66	2428	wscript.exe
67	2428	wscript.exe
68	2428	wscript.exe
70	2428	wscript.exe
71	2428	wscript.exe
77	2428	wscript.exe
87	2428	wscript.exe
88	2428	wscript.exe
89	2428	wscript.exe
90	2428	wscript.exe
91	2428	wscript.exe
92	2428	wscript.exe
93	2428	wscript.exe
97	2428	wscript.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bCdHGOcGLp.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\34003198.pdf.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bCdHGOcGLp.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bCdHGOcGLp.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\34003198.pdf.js	wscript.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\34003198 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\34003198.pdf.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\34003198 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\34003198.pdf.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\34003198 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\34003198.pdf.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\34003198 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\34003198.pdf.js\""	wscript.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Script User-Agent 25 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	88	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	93	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	67	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	87	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	71	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	17	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	36	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	56	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	63	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	34	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	54	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	35	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	40	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	53	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	68	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	90	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	92	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	77	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	91	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	37	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	55	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	51	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	66	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	70	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	89	WSHRAT\|0083AECA\|DTKUTJRL\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3928 wrote to memory of 2380	3928	wscript.exe	88
PID 3928 wrote to memory of 2380	3928	wscript.exe	88
PID 3928 wrote to memory of 2428	3928	wscript.exe	89
PID 3928 wrote to memory of 2428	3928	wscript.exe	89
PID 2428 wrote to memory of 3616	2428	wscript.exe	92
PID 2428 wrote to memory of 3616	2428	wscript.exe	92

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\34003198.pdf.js
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3928
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\bCdHGOcGLp.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:2380
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\34003198.pdf.js"
  2⤵
  - Blocklisted process makes network request
  - Checks computer location settings
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2428
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\bCdHGOcGLp.js"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    PID:3616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\34003198.pdf.js

Filesize
3.8MB

MD5
6812d6fba47adabb337563ca20fa84f8

SHA1
2ab5b312c71f2a60d53c16fad7690291ea6d5bb0

SHA256
6ac96e55099f4737d755e8caa4a03a4ad47faec1e7d133c3eb67c9a7057cd574

SHA512
63d595755ddb4f6b680fb41068f285fbfa6b87d508b7efe1c2f481e70722a2d08669f15b08e362e8db0fdbd85f84796d1f1dd48717c7bf6392055dbbedfeaeae

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\34003198.pdf.js

Filesize
64KB

MD5
caf16b510aca4da9be11fbf4f385f5f3

SHA1
979715ad51a1f20058cc114a68442f5793fea2dc

SHA256
ff9ead78118e8c54125e650282554976e30ff55708795ef65772c0e1e33d7145

SHA512
3a1c5762ea5640599d80178acf73997d1384c5e0034ad9deec79359ace39d946d15ebbfb761c827844faa07ad504c6923b258583c61d54712bc4c11e91b1ba75

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

Filesize
346KB

MD5
ef0b971ae6f0713ad41a7774539bb787

SHA1
30e622c882a4e44b193d36c1a81d78850fe70c00

SHA256
62563b71eed9b8356f69bf8ba95e4664d6f936e485975d19cb04e7f456495fd3

SHA512
d9308bb70542e0ea6f080f5a2eafc528dd037fefe3a4b83a29721b161212572db27e20fa0d08d03dac0ae1691dd0f7c40471ab03d886158305d12ba4f48d1dc2

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads