vjw0rm | 8304bd9b72d8eb4a3b02886cdfe24f463ce1b088f6bee71afcca073321de252f

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
05-04-2023 08:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

NEW PO# 230469008.js
Size

2.0MB
MD5

4843582c8aea6e684092ccc7832088cc
SHA1

5b926ea46d266420267acba4112e75d12fd7a2b3
SHA256

8304bd9b72d8eb4a3b02886cdfe24f463ce1b088f6bee71afcca073321de252f
SHA512

a531a80b84fb151eec5f6cbe618c665eaf3758dbe930c0b6bebd813ce2eb5df1e02298094a98bec157bc657bce82a19e6fd9fc993a6f4f16b173402022bcbced
SSDEEP

24576:efFW3X3yqu0Sk0kz3LxAPtS+DZ0dlNJ/R1a7euQjMm0cXkSQnrtJDh0dPklw2BK5:kuz

Score

10^/10

vjw0rm wshrat persistence trojan worm

Malware Config

Extracted

Family

wshrat

http://45.12.253.77:8889

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 56 IoCs

flow	pid	Process
9	1680	wscript.exe
10	1564	wscript.exe
11	1712	wscript.exe
12	1564	wscript.exe
14	1680	wscript.exe
15	1712	wscript.exe
18	1680	wscript.exe
19	1564	wscript.exe
21	1712	wscript.exe
26	1712	wscript.exe
28	1680	wscript.exe
29	1564	wscript.exe
31	1712	wscript.exe
33	1680	wscript.exe
34	1712	wscript.exe
37	1564	wscript.exe
40	1712	wscript.exe
41	1680	wscript.exe
42	1564	wscript.exe
46	1712	wscript.exe
49	1712	wscript.exe
51	1680	wscript.exe
53	1564	wscript.exe
54	1712	wscript.exe
56	1680	wscript.exe
57	1712	wscript.exe
60	1564	wscript.exe
61	1712	wscript.exe
64	1680	wscript.exe
66	1564	wscript.exe
68	1712	wscript.exe
71	1712	wscript.exe
73	1680	wscript.exe
74	1564	wscript.exe
76	1712	wscript.exe
79	1680	wscript.exe
80	1712	wscript.exe
83	1564	wscript.exe
84	1712	wscript.exe
86	1680	wscript.exe
88	1564	wscript.exe
90	1712	wscript.exe
94	1712	wscript.exe
96	1680	wscript.exe
97	1564	wscript.exe
99	1712	wscript.exe
101	1680	wscript.exe
102	1712	wscript.exe
106	1564	wscript.exe
107	1712	wscript.exe
109	1680	wscript.exe
112	1564	wscript.exe
113	1712	wscript.exe
116	1680	wscript.exe
117	1712	wscript.exe
121	1564	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\mBlzjTzcYX.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\NEW PO# 230469008.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mBlzjTzcYX.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\NEW PO# 230469008.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mBlzjTzcYX.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\NEW PO# 230469008 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\NEW PO# 230469008.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows\CurrentVersion\Run\NEW PO# 230469008 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\NEW PO# 230469008.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NEW PO# 230469008 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\NEW PO# 230469008.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows\CurrentVersion\Run\NEW PO# 230469008 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\NEW PO# 230469008.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

Script User-Agent 24 IoCs

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

description	flow	ioc
HTTP User-Agent header	117	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	11	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	31	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	76	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	80	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	84	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	99	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	61	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	90	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	21	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	26	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	34	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	40	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	46	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	54	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	57	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	94	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	102	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	15	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	49	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	68	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	71	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	107	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript
HTTP User-Agent header	113	WSHRAT\|9CA37D4D\|YBHADZIG\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 5/4/2023\|JavaScript

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1636 wrote to memory of 1564	1636	wscript.exe	27
PID 1636 wrote to memory of 1564	1636	wscript.exe	27
PID 1636 wrote to memory of 1564	1636	wscript.exe	27
PID 1636 wrote to memory of 1712	1636	wscript.exe	28
PID 1636 wrote to memory of 1712	1636	wscript.exe	28
PID 1636 wrote to memory of 1712	1636	wscript.exe	28
PID 1712 wrote to memory of 1680	1712	wscript.exe	30
PID 1712 wrote to memory of 1680	1712	wscript.exe	30
PID 1712 wrote to memory of 1680	1712	wscript.exe	30

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\NEW PO# 230469008.js"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1636
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\mBlzjTzcYX.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:1564
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\NEW PO# 230469008.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1712
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\mBlzjTzcYX.js"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    PID:1680

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\Microsoft\Windows\Start Menu\Programs\Startup\NEW PO# 230469008.js

Filesize
2.0MB

MD5
de617a51f79a5b592e3faec4baf8b99e

SHA1
e46c4d90d4a90a2649bddbaa8472ec3beb29fcea

SHA256
c391ead213034faaded51f3f81cf4b92a430182497cab25a4336a95ff5daaefa

SHA512
47d3d1e0d09331a7cc31c31a2583e2afe0185a307ce4f2645a9371d7db88e0354f9ba7a3c6a760d39b44775ba5c8561ec695e4fa0d533dbf9a330b1a4d752084

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\NEW PO# 230469008.js

Filesize
2.0MB

MD5
4843582c8aea6e684092ccc7832088cc

SHA1
5b926ea46d266420267acba4112e75d12fd7a2b3

SHA256
8304bd9b72d8eb4a3b02886cdfe24f463ce1b088f6bee71afcca073321de252f

SHA512
a531a80b84fb151eec5f6cbe618c665eaf3758dbe930c0b6bebd813ce2eb5df1e02298094a98bec157bc657bce82a19e6fd9fc993a6f4f16b173402022bcbced

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

Filesize
346KB

MD5
74d2a5bae039a548441b5d3be3551a7c

SHA1
c4e10bb69a9759bcfdccef6a57880582614823c0

SHA256
7e12a71f1498dd1141d887b3cc8dbd6e01d51b2976d2131f888374fe8fc23635

SHA512
568efd3d7df0ac59831d7fca978f56d626d793facca1b4e2876fc42690496e4256a62754aa10dd91f0bd0bcbaa8c20fb5454ba9cfd09167f1f8dcf0c7223d32b

Download Submit
C:\Users\Admin\AppData\Roaming\NEW PO# 230469008.js

Filesize
2.0MB

MD5
4843582c8aea6e684092ccc7832088cc

SHA1
5b926ea46d266420267acba4112e75d12fd7a2b3

SHA256
8304bd9b72d8eb4a3b02886cdfe24f463ce1b088f6bee71afcca073321de252f

SHA512
a531a80b84fb151eec5f6cbe618c665eaf3758dbe930c0b6bebd813ce2eb5df1e02298094a98bec157bc657bce82a19e6fd9fc993a6f4f16b173402022bcbced

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

Filesize
346KB

MD5
74d2a5bae039a548441b5d3be3551a7c

SHA1
c4e10bb69a9759bcfdccef6a57880582614823c0

SHA256
7e12a71f1498dd1141d887b3cc8dbd6e01d51b2976d2131f888374fe8fc23635

SHA512
568efd3d7df0ac59831d7fca978f56d626d793facca1b4e2876fc42690496e4256a62754aa10dd91f0bd0bcbaa8c20fb5454ba9cfd09167f1f8dcf0c7223d32b

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

Filesize
346KB

MD5
74d2a5bae039a548441b5d3be3551a7c

SHA1
c4e10bb69a9759bcfdccef6a57880582614823c0

SHA256
7e12a71f1498dd1141d887b3cc8dbd6e01d51b2976d2131f888374fe8fc23635

SHA512
568efd3d7df0ac59831d7fca978f56d626d793facca1b4e2876fc42690496e4256a62754aa10dd91f0bd0bcbaa8c20fb5454ba9cfd09167f1f8dcf0c7223d32b

Download Submit