vjw0rm | d6194c1048c3662b838132f3c112c13f01f83ade44f64bda3bfefb1e9297df5f

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11-04-2024 09:28

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General

Target

ed1957ce99539019ee515eacc3fc2660_JaffaCakes118.js
Size

24KB
MD5

ed1957ce99539019ee515eacc3fc2660
SHA1

b5be73e11582d601693bd9c10225649e6797cf3a
SHA256

d6194c1048c3662b838132f3c112c13f01f83ade44f64bda3bfefb1e9297df5f
SHA512

2331642a470f72256d0a1b555e978dcf979cbdbd766303f6598aaae8b6aff1c45262d8bebb61b2fbfb7f0f8d687d94f597260421695a933e4bd5025cb58698e7
SSDEEP

768:h+lwW99JDfU0KIgr20On+FibSiVOYsWfL2EHbaBfaXD:4ldzDf+S17bXVPsWfL2EYSz

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 17 IoCs

flow	pid	Process
6	3936	wscript.exe
17	3936	wscript.exe
30	3936	wscript.exe
33	3936	wscript.exe
48	3936	wscript.exe
50	3936	wscript.exe
52	3936	wscript.exe
57	3936	wscript.exe
59	3936	wscript.exe
61	3936	wscript.exe
67	3936	wscript.exe
70	3936	wscript.exe
72	3936	wscript.exe
74	3936	wscript.exe
77	3936	wscript.exe
79	3936	wscript.exe
81	3936	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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\krCCsOdrEH.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\krCCsOdrEH.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ed1957ce99539019ee515eacc3fc2660_JaffaCakes118.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-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XIKPFFU2BI = "\"C:\\Users\\Admin\\AppData\\Roaming\\ed1957ce99539019ee515eacc3fc2660_JaffaCakes118.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\krCCsOdrEH.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 3936 wrote to memory of 3052	3936	wscript.exe	84
PID 3936 wrote to memory of 3052	3936	wscript.exe	84

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\ed1957ce99539019ee515eacc3fc2660_JaffaCakes118.js
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3936
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\krCCsOdrEH.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:3052

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\krCCsOdrEH.js

Filesize
8KB

MD5
ab66a419e295afe9fcd360bc01ae5d48

SHA1
e937b624d370a33c904da35c9ffa349a56863b88

SHA256
9c9a4d7893a0d433eff735ed54f2d7db6707c5ca306c2d9c7d642064292ccce3

SHA512
b5b9170e3989b3013fe5e9723797a0e090fb3ce134346b0061194a1dab3454cc685b02956bc8bcc27c9163d6b4f4243a141b97607c600d5aee284e641aa7f6b0

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads