vjw0rm | 88831eb51e1546b02091a0b2508f19e82c1feea3fec4d4c10fac83e3df107677

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 22:44

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General

Target

JaffaCakes118_f041d2da1a5839119c042afda5c966ad.js
Size

23KB
MD5

f041d2da1a5839119c042afda5c966ad
SHA1

78dee5cee82ae393737ddbff9ccf13ad460f6711
SHA256

88831eb51e1546b02091a0b2508f19e82c1feea3fec4d4c10fac83e3df107677
SHA512

1838dc189474e0896cc5e800d0595ede6a6bc0c6535a3eb247cb2b0525763c923615762de7857ade40ecd970b8b3ef0a33075d2bae9b22e2d5aad7ae0ba37a81
SSDEEP

384:Jm3uw3bALv6vsBkAB0W8/u3ZOYEu/99BEm9e0M8LIgyfAmKI2KlVgPIfQI4AqRh3:klrAr+zNWpOC99Gm3BLIgy4mKI22V8QE

Score

10^/10

vjw0rm execution persistence trojan worm

Malware Config

Signatures

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

Blocklisted process makes network request 18 IoCs

flow	pid	Process
8	2588	wscript.exe
9	2588	wscript.exe
13	2588	wscript.exe
15	2588	wscript.exe
18	2588	wscript.exe
21	2588	wscript.exe
23	2588	wscript.exe
26	2588	wscript.exe
29	2588	wscript.exe
31	2588	wscript.exe
34	2588	wscript.exe
37	2588	wscript.exe
41	2588	wscript.exe
42	2588	wscript.exe
45	2588	wscript.exe
49	2588	wscript.exe
51	2588	wscript.exe
53	2588	wscript.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\JaffaCakes118_f041d2da1a5839119c042afda5c966ad.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\hHHTUAlbjt.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\hHHTUAlbjt.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\XIKPFFU2BI = "\"C:\\Users\\Admin\\AppData\\Roaming\\JaffaCakes118_f041d2da1a5839119c042afda5c966ad.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\hHHTUAlbjt.js\""	wscript.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2588 wrote to memory of 2612	2588	wscript.exe	31
PID 2588 wrote to memory of 2612	2588	wscript.exe	31
PID 2588 wrote to memory of 2612	2588	wscript.exe	31

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f041d2da1a5839119c042afda5c966ad.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2588
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\hHHTUAlbjt.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2612

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\hHHTUAlbjt.js

Filesize
8KB

MD5
92267ddaf97462922152ddb1e0165db8

SHA1
99d87937a9844ce24481a4499ae9bc5dd39a0604

SHA256
61c77f0004a30e87cb6a0b27b56b54e50436b1e532342f01790b398847640b02

SHA512
6d349ce485a573700990c26b845fe559172097c58bf2fee31d61e6feebd73d2be17b61957c582bb4be5f6f6671abe40ec9f8ebe24e360ce26dca9988343220a9

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads