vjw0rm | 1cec95c97922a926105fe176ac71885f52b6ddfae8e0901f1c1c9e901f083363

Resubmissions

21/07/2023, 10:49

230721-mw6a3aec65 10

21/07/2023, 10:47

230721-mvvsyaec59 10

Analysis

max time kernel
40s
max time network
36s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
21/07/2023, 10:47

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General

Target

Specifikace objednvky.js
Size

24KB
MD5

4272d76e2efed7d323e14bccef987913
SHA1

a8cde379b41cfafb036896484844620a7fcc11c6
SHA256

39372ec10b2720511f8ca94e8aed43273c507637ec03f9a1eac279aadeb22c55
SHA512

717ca100e5f2463b8aa675185e2dbd743a015fffe7654dab2b227691ed66e9443a3e387d31c3eeed63a22d1b3f77b213feec3c3fe6c1438ddf5313066f2583a9
SSDEEP

384:0B+UO8kwlbBtHS0ihYvG3bMZcCOQHp4aIX6xEzWZNxFlumanjjjIYNFLD5zvOJ:09ewl7tGr+Oy4aPOL13IoFLdzGJ

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 4 IoCs

flow	pid	Process
5	1384	wscript.exe
6	1384	wscript.exe
7	1384	wscript.exe
9	1384	wscript.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Specifikace objednvky.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
Key created	\REGISTRY\USER\S-1-5-21-1014134971-2480516131-292343513-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1014134971-2480516131-292343513-1000\Software\Microsoft\Windows\CurrentVersion\Run\1CYH0WDT4T = "\"C:\\Users\\Admin\\AppData\\Roaming\\Specifikace objedn?vky.js\""	wscript.exe

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

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/Job

T1053

pid	Process
2728	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2904	taskmgr.exe

Suspicious use of FindShellTrayWindow 29 IoCs

pid	Process
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe

Suspicious use of SendNotifyMessage 29 IoCs

pid	Process
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe
2904	taskmgr.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1384 wrote to memory of 2728	1384	wscript.exe	32
PID 1384 wrote to memory of 2728	1384	wscript.exe	32
PID 1384 wrote to memory of 2728	1384	wscript.exe	32

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\Specifikace objednvky.js"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1384
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Specifikace objednvky.js
  2⤵
  - Creates scheduled task(s)
  PID:2728

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2904-56-0x0000000140000000-0x00000001405E8000-memory.dmp

Filesize
5.9MB

Download
memory/2904-57-0x0000000140000000-0x00000001405E8000-memory.dmp

Filesize
5.9MB

Download