vjw0rm | efcdeefba79358f7c7fe176e3efb65513b34c5c4f4e0f12192dfb544149105ba

General

Target

efcdeefba79358f7c7fe176e3efb65513b34c5c4f4e0f12192dfb544149105ba.js
Size

66KB
MD5

42d55b6f9eca214d8322f6f8d3fd97fa
SHA1

bba7f2f09e21e94170771276bb543056a9fafa15
SHA256

efcdeefba79358f7c7fe176e3efb65513b34c5c4f4e0f12192dfb544149105ba
SHA512

7376cfa00a4bece9614c98ccbc0bccf2de0f7949564d5ec219338871c1dbf27a930383e10b11e709df467ee6512c658830106de2861b6ab8319c2db4ff5601bd

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

C2

http://zeegod.duckdns.org:9998

Signatures

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

Blocklisted process makes network request 17 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
7	2044	wscript.exe
8	4084	wscript.exe
13	2044	wscript.exe
19	2044	wscript.exe
25	2044	wscript.exe
29	2044	wscript.exe
30	2044	wscript.exe
34	2044	wscript.exe
38	2044	wscript.exe
39	2044	wscript.exe
40	2044	wscript.exe
42	2044	wscript.exe
43	2044	wscript.exe
44	2044	wscript.exe
45	2044	wscript.exe
49	2044	wscript.exe
51	2044	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

Processes:

wscript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 3 IoCs

Processes:

wscript.exewscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PjAkivHuis.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PjAkivHuis.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\efcdeefba79358f7c7fe176e3efb65513b34c5c4f4e0f12192dfb544149105ba.js	wscript.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exewscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\00FAYTSXGU = "\"C:\\Users\\Admin\\AppData\\Roaming\\PjAkivHuis.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YSAGQWKNY8 = "\"C:\\Users\\Admin\\AppData\\Roaming\\efcdeefba79358f7c7fe176e3efb65513b34c5c4f4e0f12192dfb544149105ba.js\""	wscript.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2512 schtasks.exe

pid	process
2512	schtasks.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 4084 wrote to memory of 2044	4084	wscript.exe	wscript.exe
PID 4084 wrote to memory of 2044	4084	wscript.exe	wscript.exe
PID 4084 wrote to memory of 2512	4084	wscript.exe	schtasks.exe
PID 4084 wrote to memory of 2512	4084	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\efcdeefba79358f7c7fe176e3efb65513b34c5c4f4e0f12192dfb544149105ba.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:4084

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\PjAkivHuis.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:2044

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\efcdeefba79358f7c7fe176e3efb65513b34c5c4f4e0f12192dfb544149105ba.js
2⤵
- Creates scheduled task(s)
PID:2512

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\PjAkivHuis.js
MD5
458502e2563a658624c8f0b366f01c95

SHA1
c09a86d6381df9613689315119c7cf3441a7ce40

SHA256
c4cf9fe07191cfafef4b722962c990f8949cb98acebbc5f4b60fc871593d21e6

SHA512
f69688610175e30302c3a20787259ee1badc24325230cea98f7dacfe83a624af8ca3e421d0007ef17a42f99f529a290eb596d5f191088b7046948169b69f8323

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads