vjw0rm | 2e0f76b60d0374094c685eca1e37895a7307df72ab16d4bb552911a21b6a36cd

General

Target

PO202104-114.js
Size

202KB
MD5

5c4f47782fb4bfdeb29d59b6c9650286
SHA1

62300fcfeaa7b749cfd7850b94024f362189af11
SHA256

2e0f76b60d0374094c685eca1e37895a7307df72ab16d4bb552911a21b6a36cd
SHA512

b699e44ceaf19ceab872eb7c743a0492eacc2ebb515906b7d5d28767159b14fc18adabd56f1bcb07fd1bcd169a3d1f74cab59ad8ee7643741796639103dce7b5

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 5 IoCs

Processes:

WScript.exe

flow pid process

9 3968 WScript.exe
14 3968 WScript.exe
32 3968 WScript.exe
33 3968 WScript.exe
36 3968 WScript.exe

flow	pid	process
9	3968	WScript.exe
14	3968	WScript.exe
32	3968	WScript.exe
33	3968	WScript.exe
36	3968	WScript.exe

Drops startup file 2 IoCs

Processes:

WScript.exe

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

WScript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows\CurrentVersion\Run	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\SyGGrZamCM.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
Modifies registry class 1 IoCs

Processes:

wscript.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings wscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings	wscript.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 3760 wrote to memory of 3968	3760	wscript.exe	WScript.exe
PID 3760 wrote to memory of 3968	3760	wscript.exe	WScript.exe
PID 3760 wrote to memory of 4240	3760	wscript.exe	javaw.exe
PID 3760 wrote to memory of 4240	3760	wscript.exe	javaw.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\PO202104-114.js
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3760
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\SyGGrZamCM.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:3968
- C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe
  "C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\zyhpyeicn.txt"
  2⤵
  PID:4240

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

MD5
78802968268e71d56dc91944257cc6e7

SHA1
e31ef27fe37c56c4a1e6eb37753b86b68f0ef387

SHA256
b867cf607f7cb4fcd25ecdaf5af06cf04d9af5f75fd407f1b90d4d881cd384df

SHA512
32e214e864ded5c299d6f9864347e3d8df1719cc538903715bdc0281de90e738daacba9962d85cf950fc0e079f7b50c4b5adaffde6d12a37790e66d3da7b5afa

Download Submit
C:\Users\Admin\AppData\Roaming\zyhpyeicn.txt

MD5
e5c57969a139fa14269758cb8cc8f9a7

SHA1
432f65c2b1da28b421eac3956d8cefd72f04ae6a

SHA256
b2b661ff89ba10a5a27a06df63a9ffd158b254aff5f38a96ff5c1f6344959501

SHA512
526f7f1717488c87457353d78480ec590d5abf5bf6bdc697dc92433c26a949c649b94bd83cfc7891c24fbc5e96414793fb9a192f77a3ded9ad434d8524a215d5

Download Submit
memory/3968-118-0x0000000000000000-mapping.dmp

Download
memory/4240-148-0x0000000003210000-0x0000000003220000-memory.dmp

Filesize
64KB

Download
memory/4240-253-0x0000000003310000-0x0000000003320000-memory.dmp

Filesize
64KB

Download
memory/4240-151-0x0000000003280000-0x0000000003290000-memory.dmp

Filesize
64KB

Download
memory/4240-124-0x0000000000FF0000-0x0000000000FF1000-memory.dmp

Filesize
4KB

Download
memory/4240-128-0x0000000000FF0000-0x0000000000FF1000-memory.dmp

Filesize
4KB

Download
memory/4240-130-0x00000000031C0000-0x00000000031D0000-memory.dmp

Filesize
64KB

Download
memory/4240-129-0x0000000000FF0000-0x0000000000FF1000-memory.dmp

Filesize
4KB

Download
memory/4240-132-0x00000000031D0000-0x00000000031E0000-memory.dmp

Filesize
64KB

Download
memory/4240-141-0x00000000031E0000-0x00000000031F0000-memory.dmp

Filesize
64KB

Download
memory/4240-142-0x00000000031F0000-0x0000000003200000-memory.dmp

Filesize
64KB

Download
memory/4240-144-0x0000000003260000-0x0000000003270000-memory.dmp

Filesize
64KB

Download
memory/4240-145-0x0000000003270000-0x0000000003280000-memory.dmp

Filesize
64KB

Download
memory/4240-147-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/4240-120-0x0000000000000000-mapping.dmp

Download
memory/4240-123-0x0000000002F50000-0x00000000031C0000-memory.dmp

Filesize
2.4MB

Download
memory/4240-152-0x0000000003240000-0x0000000003250000-memory.dmp

Filesize
64KB

Download
memory/4240-122-0x0000000002F50000-0x00000000031C0000-memory.dmp

Filesize
2.4MB

Download
memory/4240-150-0x0000000003230000-0x0000000003240000-memory.dmp

Filesize
64KB

Download
memory/4240-153-0x0000000003250000-0x0000000003260000-memory.dmp

Filesize
64KB

Download
memory/4240-157-0x00000000032A0000-0x00000000032B0000-memory.dmp

Filesize
64KB

Download
memory/4240-156-0x0000000003290000-0x00000000032A0000-memory.dmp

Filesize
64KB

Download
memory/4240-173-0x0000000000FF0000-0x0000000000FF1000-memory.dmp

Filesize
4KB

Download
memory/4240-186-0x0000000000FF0000-0x0000000000FF1000-memory.dmp

Filesize
4KB

Download
memory/4240-192-0x00000000032B0000-0x00000000032C0000-memory.dmp

Filesize
64KB

Download
memory/4240-193-0x00000000032C0000-0x00000000032D0000-memory.dmp

Filesize
64KB

Download
memory/4240-194-0x0000000000FF0000-0x0000000000FF1000-memory.dmp

Filesize
4KB

Download
memory/4240-218-0x00000000032D0000-0x00000000032E0000-memory.dmp

Filesize
64KB

Download
memory/4240-246-0x00000000032E0000-0x00000000032F0000-memory.dmp

Filesize
64KB

Download
memory/4240-248-0x00000000032F0000-0x0000000003300000-memory.dmp

Filesize
64KB

Download
memory/4240-251-0x0000000003300000-0x0000000003310000-memory.dmp

Filesize
64KB

Download
memory/4240-149-0x0000000003220000-0x0000000003230000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads