vjw0rm | 8e0718cf9229c3ec7a9bca40b38b5b0e61031e2fdee4511c8de665170c153598

Analysis

max time kernel
145s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240319-en
resource tags

arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
submitted
07-04-2024 13:34

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General

Target

e50cc2184078acbb9886740526f92975_JaffaCakes118.js
Size

26KB
MD5

e50cc2184078acbb9886740526f92975
SHA1

64b74fe23a2eff712000b258f15e92e4dcb0ae28
SHA256

8e0718cf9229c3ec7a9bca40b38b5b0e61031e2fdee4511c8de665170c153598
SHA512

7fc55bc3271bf8dbf9adb52727d25953ffe170ab098dad8f83b75d2f7631651765b81224cfa5e47406d36e6c10591529a2eef2e25eac8e272dc9d0840988b915
SSDEEP

384:TjzwwfHfEZVuf5ZYs9x7Gt2n4oumCMPts8yeB4KXTpnnVJE/1tx0PdbziY0z/+3x:XzX6QftWk4o9Cv6CKFnF30z/+320

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 16 IoCs

flow	pid	Process
3	3328	wscript.exe
36	3328	wscript.exe
44	3328	wscript.exe
46	3328	wscript.exe
62	3328	wscript.exe
64	3328	wscript.exe
66	3328	wscript.exe
72	3328	wscript.exe
77	3328	wscript.exe
79	3328	wscript.exe
85	3328	wscript.exe
98	3328	wscript.exe
100	3328	wscript.exe
104	3328	wscript.exe
106	3328	wscript.exe
108	3328	wscript.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-1-5-21-817259280-2658881748-983986378-1000\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\QFBaDfPcbm.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\QFBaDfPcbm.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-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\R343ND8XDN = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\e50cc2184078acbb9886740526f92975_JaffaCakes118.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\QFBaDfPcbm.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 2 IoCs

description	pid	Process	procid_target
PID 3328 wrote to memory of 2668	3328	wscript.exe	95
PID 3328 wrote to memory of 2668	3328	wscript.exe	95

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\e50cc2184078acbb9886740526f92975_JaffaCakes118.js
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3328
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\QFBaDfPcbm.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2668

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3140 --field-trial-handle=3536,i,10914981530159316853,12381340356750224673,262144 --variations-seed-version /prefetch:8
1⤵
PID:2580

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
9KB

MD5
1bd5ec41b28ca7cec093e8dfadef1d5b

SHA1
86fc74ba456c6fad7aca84f8f88046ea5fe0d519

SHA256
450211bd8dd2d26ed399750d602b70a3a35200bafd0398b6c6a63cf7c95e8d46

SHA512
3de650150406c1d421f06976e8afae0c7f694d2f7c368dbc7471179f82401a64fee143807ac1f9316a0815ee5abf5d34a6f3a8f65173af53961fdf9217313778

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads