vjw0rm | dff140d494fb80e82a23e29b374abc733ed9b62525fdca0341fdbb121290dca6

Analysis

max time kernel
151s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09-04-2024 09:00

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General

Target

e9a08df4b85e99b01a9c145e9af3964d_JaffaCakes118.js
Size

26KB
MD5

e9a08df4b85e99b01a9c145e9af3964d
SHA1

e498d70a9b568d7a66d661c91e9ed2db52d442df
SHA256

dff140d494fb80e82a23e29b374abc733ed9b62525fdca0341fdbb121290dca6
SHA512

a2e2bfc777e80770444554866fc29df5ce307974bc842de43d40ab1b536d0be1398eff97ba2d6bc73c59966b86570ebc3c4ce85d1f6430c2a32c4110b2e73283
SSDEEP

384:TsUHnUJBuX5ZIgJ2ug5cP5ijvspjo+sUCtfayieHGnN04V1E/el2gyUZhUQAQG3x:Okf5QMysF2HfmNNaudAQG320

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Signatures

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

Blocklisted process makes network request 31 IoCs

flow	pid	Process
6	2240	wscript.exe
7	2240	wscript.exe
9	2240	wscript.exe
10	2240	wscript.exe
13	2240	wscript.exe
14	2240	wscript.exe
17	2240	wscript.exe
18	2240	wscript.exe
21	2240	wscript.exe
22	2240	wscript.exe
24	2240	wscript.exe
25	2240	wscript.exe
28	2240	wscript.exe
30	2240	wscript.exe
32	2240	wscript.exe
33	2240	wscript.exe
35	2240	wscript.exe
36	2240	wscript.exe
39	2240	wscript.exe
41	2240	wscript.exe
43	2240	wscript.exe
44	2240	wscript.exe
47	2240	wscript.exe
48	2240	wscript.exe
50	2240	wscript.exe
52	2240	wscript.exe
55	2240	wscript.exe
56	2240	wscript.exe
58	2240	wscript.exe
59	2240	wscript.exe
62	2240	wscript.exe

Drops startup file 2 IoCs

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\yBqkfOVwNP.js\""	wscript.exe

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 2240 wrote to memory of 2540	2240	wscript.exe	28
PID 2240 wrote to memory of 2540	2240	wscript.exe	28
PID 2240 wrote to memory of 2540	2240	wscript.exe	28

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\e9a08df4b85e99b01a9c145e9af3964d_JaffaCakes118.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\yBqkfOVwNP.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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\yBqkfOVwNP.js

Filesize
9KB

MD5
57111779ec54af1803d5013520a6b104

SHA1
822be87e2f4dbc2ccf178141bd95d916b90f8dfd

SHA256
7c61705381b479cfe63d85a7eae012b4bfc5825d01b1d7c2366277d3ed5c880f

SHA512
6d4db62c75d8bbfa4de93633c3216538bf5bf611323c03693744ae410919a18d6e3096b7f4270eee1727931603978c1b02390d3a82d10d19fbf8787bc158cf30

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads