vjw0rm | e5949068ab9d6e134134a471fda48012a5052bf8e4fcbd5801e0df0d617f2336

General

Target

8b786459da668bf229d67be2f0723d3e.js
Size

1.3MB
MD5

8b786459da668bf229d67be2f0723d3e
SHA1

a049cdb8ababa353f6680203104d94df4fd8bebb
SHA256

e5949068ab9d6e134134a471fda48012a5052bf8e4fcbd5801e0df0d617f2336
SHA512

47a6611f7071093df66a214753c8b5b43428bd22dade994b1e28d6c1f90d59e9b226b95ca8c5879fbd5cc1ab3145b9633df4aea12312b3a4e915b737d976fcb2
SSDEEP

24576:n+qRVuZ86lSFd1dLImyZDe83TrXYpPJK/msejpyqI8bFt3:n+qRVk8eo1LImytlYLKc+8P

Score

10^/10

vjw0rm collection spyware stealer trojan worm

Malware Config

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm

Blocklisted process makes network request 16 IoCs

Processes:

wscript.exe

flow	pid	process
9	4476	wscript.exe
28	4476	wscript.exe
31	4476	wscript.exe
37	4476	wscript.exe
46	4476	wscript.exe
49	4476	wscript.exe
50	4476	wscript.exe
55	4476	wscript.exe
56	4476	wscript.exe
57	4476	wscript.exe
58	4476	wscript.exe
59	4476	wscript.exe
60	4476	wscript.exe
61	4476	wscript.exe
62	4476	wscript.exe
63	4476	wscript.exe

Executes dropped EXE 1 IoCs

Processes:

Payload (3).exe

pid process

2188 Payload (3).exe
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

wscript.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation wscript.exe

pid	process
2188	Payload (3).exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

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

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Payload (3).exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payload (3).exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payload (3).exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payload (3).exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

18 ipinfo.io
19 ipinfo.io
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	ioc
18	ipinfo.io
19	ipinfo.io

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Payload (3).exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Payload (3).exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	Payload (3).exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Payload (3).exe

description pid process

Token: SeDebugPrivilege 2188 Payload (3).exe

description	pid	process
Token: SeDebugPrivilege	2188	Payload (3).exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 4604 wrote to memory of 4476	4604	wscript.exe	wscript.exe
PID 4604 wrote to memory of 4476	4604	wscript.exe	wscript.exe
PID 4604 wrote to memory of 2188	4604	wscript.exe	Payload (3).exe
PID 4604 wrote to memory of 2188	4604	wscript.exe	Payload (3).exe
PID 4604 wrote to memory of 2188	4604	wscript.exe	Payload (3).exe

outlook_office_path 1 IoCs

Processes:

Payload (3).exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payload (3).exe

outlook_win_path 1 IoCs

Processes:

Payload (3).exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payload (3).exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\8b786459da668bf229d67be2f0723d3e.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4604

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\UcKCgYfQCy.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
PID:4476

C:\Users\Admin\AppData\Local\Temp\Payload (3).exe
"C:\Users\Admin\AppData\Local\Temp\Payload (3).exe"
2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2188

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Web Service

1

T1102

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Payload (3).exe
Filesize
755KB

MD5
3e8af9fffb1b980b193508f6a8a8cdc3

SHA1
e91e6f525952ae5a812d3cd3a795c6aeca94e527

SHA256
ba055f5ffcf5c345e37307673717f11319326e5c4b621f336b76c4826b09f7cc

SHA512
072bac20632cc30aa99715e4d5f508eab6a5b143704a0cdbbf0f5f22f86f4c02204efb1eb4acf8eeca97622c074bed2aa333119e842040e34ab55bff219a1f11

Download Submit
C:\Users\Admin\AppData\Local\Temp\Payload (3).exe
Filesize
755KB

MD5
3e8af9fffb1b980b193508f6a8a8cdc3

SHA1
e91e6f525952ae5a812d3cd3a795c6aeca94e527

SHA256
ba055f5ffcf5c345e37307673717f11319326e5c4b621f336b76c4826b09f7cc

SHA512
072bac20632cc30aa99715e4d5f508eab6a5b143704a0cdbbf0f5f22f86f4c02204efb1eb4acf8eeca97622c074bed2aa333119e842040e34ab55bff219a1f11

Download Submit
C:\Users\Admin\AppData\Roaming\UcKCgYfQCy.js
Filesize
5KB

MD5
e92476e9675eb8bd668e6e1144a07191

SHA1
d3b1de85dcd84a331dbdeb033e6f00b2aa46954c

SHA256
3840382c8527ba2e58e6ddb72f379d17a7e95ac559b2f61d8b8e0a53d4bac9b2

SHA512
30d3f57b150de25b30737e13a42bfc0948144e91eb9772e3b38114fe4d19ad778eeb600c8565ecfee10a86e9a6056b12119f2116c9d82fee18367ae1412b35e3

Download Submit
memory/2188-134-0x0000000000000000-mapping.dmp

Download
memory/2188-137-0x00000000007A0000-0x0000000000864000-memory.dmp

Filesize
784KB

Download
memory/2188-138-0x0000000007560000-0x00000000075C6000-memory.dmp

Filesize
408KB

Download
memory/2188-139-0x0000000008AB0000-0x0000000008AD2000-memory.dmp

Filesize
136KB

Download
memory/2188-140-0x0000000008A80000-0x0000000008A8A000-memory.dmp

Filesize
40KB

Download
memory/2188-141-0x0000000008EF0000-0x0000000008F02000-memory.dmp

Filesize
72KB

Download
memory/4476-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads