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 31 IoCs

flow	pid	Process
15	3972	wscript.exe
25	2232	wscript.exe
26	4856	wscript.exe
41	2232	wscript.exe
42	2232	wscript.exe
43	2232	wscript.exe
44	2232	wscript.exe
46	2232	wscript.exe
49	2232	wscript.exe
50	2232	wscript.exe
52	2232	wscript.exe
56	2232	wscript.exe
62	2232	wscript.exe
69	2232	wscript.exe
70	2232	wscript.exe
71	2232	wscript.exe
72	2232	wscript.exe
73	2232	wscript.exe
76	2232	wscript.exe
91	2232	wscript.exe
95	2232	wscript.exe
96	2232	wscript.exe
97	2232	wscript.exe
98	2232	wscript.exe
99	2232	wscript.exe
100	4856	wscript.exe
101	3972	wscript.exe
102	2232	wscript.exe
103	2232	wscript.exe
104	2232	wscript.exe
105	2232	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-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 5 IoCs

description	ioc	Process
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
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bCdHGOcGLp.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\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\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-1-5-21-2288054676-1871194608-3559553667-1000\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

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

System Information Discovery
T1082

Script User-Agent 27 IoCs

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

description	flow	ioc
HTTP User-Agent header	50	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	70	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	49	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	95	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	99	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	76	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	42	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	46	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	52	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	72	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	73	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	25	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	97	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	103	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	69	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	104	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	44	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	62	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	96	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	41	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	91	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	102	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	105	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	43	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	71	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	98	WSHRAT\|648419EF\|PTMYDVMK\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 19/4/2024\|JavaScript
HTTP User-Agent header	56	WSHRAT\|648419EF\|PTMYDVMK\|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 1796 wrote to memory of 3972	1796	wscript.exe	88
PID 1796 wrote to memory of 3972	1796	wscript.exe	88
PID 1796 wrote to memory of 2232	1796	wscript.exe	89
PID 1796 wrote to memory of 2232	1796	wscript.exe	89
PID 2232 wrote to memory of 4856	2232	wscript.exe	91
PID 2232 wrote to memory of 4856	2232	wscript.exe	91

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:1796
- 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:3972
- 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:2232
- - 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:4856

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\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