vjw0rm | e61713ffb39c48f5a162cbd0635b869bbd9b318ee3ac47a5a62490b572752b7a

General

Target
8547af690a9b533d6acd08360f5b18d5_JaffaCakes118.js
Size 45KB
Sample240402-ggte3aaa3t
SHA256 e61713ffb39c48f5a162cbd0635b869bbd9b318ee3ac47a5a62490b572752b7a
MD5 8547af690a9b533d6acd08360f5b18d5
SHA1 fe393629e5df70bcfef741a70432af6c6a528b27
SHA512 7dcab08f69aaefd585a31cf3636a6fe252a9efa18dd5e587f269ea5ccb8648a5daaa4c9302bc2a22f35fe48ac590a07b1192d7aed7eb7b2badb801b39b37552d
SSDEEP 768:klrw9II2LrCko3oHRirCWiUG+Odm4aS/pLF8NQEJUP:klK1MrCP3oHRirWUG+OdOqv8NQEJS
MD5 SHA1 SHA512 SSDEEP

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 6 IoCs

flow	pid	Process
8	2252	wscript.exe
25	2252	wscript.exe
47	2252	wscript.exe
53	2252	wscript.exe
60	2252	wscript.exe
66	2252	wscript.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 5 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sURhETJCuW.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sURhETJCuW.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sURhETJCuW.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8547af690a9b533d6acd08360f5b18d5_JaffaCakes118.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8547af690a9b533d6acd08360f5b18d5_JaffaCakes118.js	wscript.exe

Adds Run key to start application 2 TTPs 6 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\sURhETJCuW.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8547af690a9b533d6acd08360f5b18d5_JaffaCakes118 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\8547af690a9b533d6acd08360f5b18d5_JaffaCakes118.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8547af690a9b533d6acd08360f5b18d5_JaffaCakes118 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\8547af690a9b533d6acd08360f5b18d5_JaffaCakes118.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8547af690a9b533d6acd08360f5b18d5_JaffaCakes118 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\8547af690a9b533d6acd08360f5b18d5_JaffaCakes118.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8547af690a9b533d6acd08360f5b18d5_JaffaCakes118 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\8547af690a9b533d6acd08360f5b18d5_JaffaCakes118.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\sURhETJCuW.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 6 IoCs

description	pid	Process	procid_target
PID 1156 wrote to memory of 3092	1156	wscript.exe	91
PID 1156 wrote to memory of 3092	1156	wscript.exe	91
PID 1156 wrote to memory of 2252	1156	wscript.exe	92
PID 1156 wrote to memory of 2252	1156	wscript.exe	92
PID 2252 wrote to memory of 2084	2252	wscript.exe	94
PID 2252 wrote to memory of 2084	2252	wscript.exe	94

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\8547af690a9b533d6acd08360f5b18d5_JaffaCakes118.js
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1156
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\sURhETJCuW.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:3092
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\8547af690a9b533d6acd08360f5b18d5_JaffaCakes118.js"
  2⤵
  - Blocklisted process makes network request
  - Checks computer location settings
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2252
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\sURhETJCuW.js"
    3⤵
    - Drops startup file
    - Adds Run key to start application
    PID:2084

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=4344 --field-trial-handle=2240,i,16875000905773190493,11379096115878622792,262144 --variations-seed-version /prefetch:8
1⤵
PID:1188

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

8547af690a9b533d6acd08360f5b18d5_JaffaCakes118.js

Path C:\Users\Admin\AppData\Roaming\8547af690a9b533d6acd08360f5b18d5_JaffaCakes118.js
Size 45KB
SHA256 e61713ffb39c48f5a162cbd0635b869bbd9b318ee3ac47a5a62490b572752b7a
MD5 8547af690a9b533d6acd08360f5b18d5
SHA1 fe393629e5df70bcfef741a70432af6c6a528b27
SHA512 7dcab08f69aaefd585a31cf3636a6fe252a9efa18dd5e587f269ea5ccb8648a5daaa4c9302bc2a22f35fe48ac590a07b1192d7aed7eb7b2badb801b39b37552d
SSDEEP 768:klrw9II2LrCko3oHRirCWiUG+Odm4aS/pLF8NQEJUP:klK1MrCP3oHRirWUG+OdOqv8NQEJS
MD5 SHA1 SHA512 SSDEEP

Submit Download

sURhETJCuW.js

Path C:\Users\Admin\AppData\Roaming\sURhETJCuW.js
Size 8KB
SHA256 3aae275c07d7764537c56383c404414ad94689c16dfdbf02c7315f1cc3cd870e
MD5 1b42aad624e2912847110be197ac4d15
SHA1 d334bd3287bb2068345fd4f436cee2c0fabc687a
SHA512 57dbfdaf42cb38e993bb4ab03d2e74919d1d396b9225d99eac3ef39c76fac2d999a7cd2265dc65bf6693ff65863d98b00de7265d54b670b1a680cfcbf9062a8a
SSDEEP 192:Jm3vmw31lizOkzSeu678r+sHf8/aJtwfOY6ZxX6Jhfd1:Jm3uw3biM7prqaJ06ahfd1
MD5 SHA1 SHA512 SSDEEP

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads