vjw0rm | bc2f42a0cf94f85af568cda4c54cacdfa0934112691c466bd5c6e66c1f027bf8

General

Target

KkzkKniBww_movar.js
Size

63KB
MD5

f26c46d819119f4ccca8d143f93289b7
SHA1

c84db01b0f8406979f8fabc7d73567bb9a5aa90e
SHA256

bc2f42a0cf94f85af568cda4c54cacdfa0934112691c466bd5c6e66c1f027bf8
SHA512

f1280d48ea7eda1617c9091b31f24d73d491b58c9c5cdabeb3fde96642f9c127c4a7a901a43cc8bbfe7a59b2d7fcc762b8cda8c98e3e3fa69483d3411ba210db
SSDEEP

1536:XZqpqIKrA7C/AXx2BqDLECc5tfOsKsLMYOsor:XZLSbUTf1dLM1

Score

10^/10

vjw0rm wshrat persistence trojan worm

Malware Config

Extracted

Family

wshrat

C2

http://45.139.105.174:7670

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

Processes:

wscript.exewscript.exewscript.exe

flow	pid	process
5	1596	wscript.exe
7	524	wscript.exe
8	5028	wscript.exe
18	1596	wscript.exe
19	524	wscript.exe
20	5028	wscript.exe
33	1596	wscript.exe
35	5028	wscript.exe
36	524	wscript.exe
40	1596	wscript.exe
48	5028	wscript.exe
49	524	wscript.exe
50	1596	wscript.exe
51	1596	wscript.exe
52	1596	wscript.exe
58	1596	wscript.exe
59	1596	wscript.exe
62	5028	wscript.exe
63	524	wscript.exe
64	1596	wscript.exe
65	1596	wscript.exe
68	1596	wscript.exe
73	1596	wscript.exe
79	1596	wscript.exe
80	1596	wscript.exe
81	524	wscript.exe
82	5028	wscript.exe
83	1596	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

Processes:

wscript.exewscript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 5 IoCs

Processes:

wscript.exewscript.exewscript.exewscript.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\JCuRXrwISa.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\JCuRXrwISa.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\KkzkKniBww_movar.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\KkzkKniBww_movar.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\JCuRXrwISa.js	wscript.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exewscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\KkzkKniBww_movar = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\KkzkKniBww_movar.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\KkzkKniBww_movar = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\KkzkKniBww_movar.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\KkzkKniBww_movar = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\KkzkKniBww_movar.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\KkzkKniBww_movar = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\KkzkKniBww_movar.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 13 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	65	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 25/11/2022\|JavaScript
HTTP User-Agent header	68	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 25/11/2022\|JavaScript
HTTP User-Agent header	50	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 25/11/2022\|JavaScript
HTTP User-Agent header	59	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 25/11/2022\|JavaScript
HTTP User-Agent header	52	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 25/11/2022\|JavaScript
HTTP User-Agent header	58	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 25/11/2022\|JavaScript
HTTP User-Agent header	64	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 25/11/2022\|JavaScript
HTTP User-Agent header	73	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 25/11/2022\|JavaScript
HTTP User-Agent header	79	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 25/11/2022\|JavaScript
HTTP User-Agent header	80	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 25/11/2022\|JavaScript
HTTP User-Agent header	33	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 25/11/2022\|JavaScript
HTTP User-Agent header	51	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 25/11/2022\|JavaScript
HTTP User-Agent header	83	WSHRAT\|18024990\|TMKNGOMU\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 25/11/2022\|JavaScript

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

wscript.exewscript.exe

description	pid	process	target process
PID 1664 wrote to memory of 5028	1664	wscript.exe	wscript.exe
PID 1664 wrote to memory of 5028	1664	wscript.exe	wscript.exe
PID 1664 wrote to memory of 1596	1664	wscript.exe	wscript.exe
PID 1664 wrote to memory of 1596	1664	wscript.exe	wscript.exe
PID 1596 wrote to memory of 524	1596	wscript.exe	wscript.exe
PID 1596 wrote to memory of 524	1596	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\KkzkKniBww_movar.js
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1664

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\JCuRXrwISa.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
PID:5028

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\KkzkKniBww_movar.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:1596

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\JCuRXrwISa.js"
3⤵
- Blocklisted process makes network request
- Drops startup file
PID:524

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\JCuRXrwISa.js
Filesize
14KB

MD5
c06f22190b4bf0b931057f80c1f3c97d

SHA1
e9ae59294ceef2115e78d6fb1e92e4374fd1c699

SHA256
25d1fc1a5e11d2a7400e0fa379f9779474f73f2894c3d5ad4101999a209f9a13

SHA512
6158fb4a7606716f62eaa18c39a6221f8ab7f728a63e2cc37ad6b5346f0d6040c51ad21358cab3a3e70e4f5d8bfb0f6726abd85ba578915a275c14074d3cdfcd

Download Submit
C:\Users\Admin\AppData\Roaming\JCuRXrwISa.js
Filesize
14KB

MD5
c06f22190b4bf0b931057f80c1f3c97d

SHA1
e9ae59294ceef2115e78d6fb1e92e4374fd1c699

SHA256
25d1fc1a5e11d2a7400e0fa379f9779474f73f2894c3d5ad4101999a209f9a13

SHA512
6158fb4a7606716f62eaa18c39a6221f8ab7f728a63e2cc37ad6b5346f0d6040c51ad21358cab3a3e70e4f5d8bfb0f6726abd85ba578915a275c14074d3cdfcd

Download Submit
C:\Users\Admin\AppData\Roaming\KkzkKniBww_movar.js
Filesize
63KB

MD5
f26c46d819119f4ccca8d143f93289b7

SHA1
c84db01b0f8406979f8fabc7d73567bb9a5aa90e

SHA256
bc2f42a0cf94f85af568cda4c54cacdfa0934112691c466bd5c6e66c1f027bf8

SHA512
f1280d48ea7eda1617c9091b31f24d73d491b58c9c5cdabeb3fde96642f9c127c4a7a901a43cc8bbfe7a59b2d7fcc762b8cda8c98e3e3fa69483d3411ba210db

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\JCuRXrwISa.js
Filesize
14KB

MD5
c06f22190b4bf0b931057f80c1f3c97d

SHA1
e9ae59294ceef2115e78d6fb1e92e4374fd1c699

SHA256
25d1fc1a5e11d2a7400e0fa379f9779474f73f2894c3d5ad4101999a209f9a13

SHA512
6158fb4a7606716f62eaa18c39a6221f8ab7f728a63e2cc37ad6b5346f0d6040c51ad21358cab3a3e70e4f5d8bfb0f6726abd85ba578915a275c14074d3cdfcd

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\KkzkKniBww_movar.js
Filesize
63KB

MD5
f26c46d819119f4ccca8d143f93289b7

SHA1
c84db01b0f8406979f8fabc7d73567bb9a5aa90e

SHA256
bc2f42a0cf94f85af568cda4c54cacdfa0934112691c466bd5c6e66c1f027bf8

SHA512
f1280d48ea7eda1617c9091b31f24d73d491b58c9c5cdabeb3fde96642f9c127c4a7a901a43cc8bbfe7a59b2d7fcc762b8cda8c98e3e3fa69483d3411ba210db

Download Submit
memory/524-136-0x0000000000000000-mapping.dmp

Download
memory/1596-134-0x0000000000000000-mapping.dmp

Download
memory/5028-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads