vjw0rm | a084e2e6518b0326f38a0dfd087dc9ca17c2ef953e4cb05f1ccc3b35acc8ab01

General

Target

d545270fe4ea4823d14c419ec38d3c1f861c6a24c096b3b0953960428c4ef395.js
Size

1.4MB
MD5

6ed6de4f3937d74a4a890fd63a731913
SHA1

e6e6c10575efbc35a55d47bd4769223da7a8d9cc
SHA256

d545270fe4ea4823d14c419ec38d3c1f861c6a24c096b3b0953960428c4ef395
SHA512

717911ec6dd302ad70a13da42bc877cc02b268bf515c09dfea302799665e6102a1585575232b4191ac586904b418f360aab46d5da7df7f63a97f661678579c82
SSDEEP

24576:7BqyjfTTfng/+3tHhRkeBQxoS+Vy9ePXG:7BRTTYQBRksQxoS+8f

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 12 IoCs

flow	pid	Process
6	2636	wscript.exe
25	2636	wscript.exe
46	2636	wscript.exe
52	2636	wscript.exe
74	2636	wscript.exe
81	2636	wscript.exe
88	2636	wscript.exe
97	2636	wscript.exe
108	2636	wscript.exe
109	2636	wscript.exe
110	2636	wscript.exe
111	2636	wscript.exe

Executes dropped EXE 1 IoCs

pid	Process
5028	Payload.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

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

Drops startup file 2 IoCs

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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payload.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payload.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payload.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	Payload.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Payload.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5028	Payload.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4988 wrote to memory of 2636	4988	wscript.exe	79
PID 4988 wrote to memory of 2636	4988	wscript.exe	79
PID 4988 wrote to memory of 5028	4988	wscript.exe	80
PID 4988 wrote to memory of 5028	4988	wscript.exe	80
PID 4988 wrote to memory of 5028	4988	wscript.exe	80

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payload.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payload.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\d545270fe4ea4823d14c419ec38d3c1f861c6a24c096b3b0953960428c4ef395.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4988
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\HJuNhYQRCb.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:2636
- C:\Users\Admin\AppData\Local\Temp\Payload.exe
  "C:\Users\Admin\AppData\Local\Temp\Payload.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:5028

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Web Service

1

T1102

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Payload.exe

Filesize
755KB

MD5
2b7f757f0a02ced496481020f0b8f1eb

SHA1
21f11c5f725648d27af684ecff61c3ef7ecbcba3

SHA256
e9104e917f45761bacb425fc97f53175c3ad82ac1961fd68b749c574ec81b3e9

SHA512
1a13cd7f10099cfb679974fb8984ed9698bd5f2bef3beac3f06027e25ecb8147864c6b15768a204991e8e5d6eef75e3447dd816d9c00497b31f479b72197a9d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\Payload.exe

Filesize
755KB

MD5
2b7f757f0a02ced496481020f0b8f1eb

SHA1
21f11c5f725648d27af684ecff61c3ef7ecbcba3

SHA256
e9104e917f45761bacb425fc97f53175c3ad82ac1961fd68b749c574ec81b3e9

SHA512
1a13cd7f10099cfb679974fb8984ed9698bd5f2bef3beac3f06027e25ecb8147864c6b15768a204991e8e5d6eef75e3447dd816d9c00497b31f479b72197a9d7

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

Filesize
16KB

MD5
bc7e3f3b7e656d7210168ade916e46ed

SHA1
210515856852a1563147ce7e86504c6ceede5f27

SHA256
9cfe508ba1049698650251a3ae53bdc78770d77d1bbe6d30653eb5c4fa29acba

SHA512
bb8424b6b60d66db6e021fcc6ab132437addbb196bd1709e855ea184c5dcfdd5aa8c3008c3526dc6f8c475165f18b966766850e758fccdd40bfd04874c6e5c17

Download Submit
memory/5028-137-0x0000000000D80000-0x0000000000E44000-memory.dmp

Filesize
784KB

Download
memory/5028-138-0x0000000007C80000-0x0000000007CE6000-memory.dmp

Filesize
408KB

Download
memory/5028-139-0x00000000091C0000-0x00000000091E2000-memory.dmp

Filesize
136KB

Download
memory/5028-140-0x0000000003110000-0x000000000311A000-memory.dmp

Filesize
40KB

Download
memory/5028-141-0x0000000003140000-0x0000000003152000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads