vjw0rm | c399dbe473150a5d2a9d3676d81971de66f2daf5360d2be26e62b5533c4fcbad

General

Target

SHIPMENTDOCUMENTS PDF.js
Size

531KB
MD5

cf4ec0d22c787775c9f46dd0fe19da33
SHA1

f0379f9363c0c9955d9b71064a2879fd6b1cff5c
SHA256

c399dbe473150a5d2a9d3676d81971de66f2daf5360d2be26e62b5533c4fcbad
SHA512

7248e804832f6eb2fb13e73af73a41a695fa131d239ce2b5aa3495858bd387053569e1d1a0e530a1e4f1a949a7c87e0995ad9443b9e2ec49d9a09889e8ccbb1f

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 18 IoCs

Processes:

WScript.exe

flow	pid	process
8	3504	WScript.exe
23	3504	WScript.exe
30	3504	WScript.exe
31	3504	WScript.exe
32	3504	WScript.exe
33	3504	WScript.exe
34	3504	WScript.exe
35	3504	WScript.exe
37	3504	WScript.exe
38	3504	WScript.exe
39	3504	WScript.exe
40	3504	WScript.exe
41	3504	WScript.exe
42	3504	WScript.exe
43	3504	WScript.exe
44	3504	WScript.exe
45	3504	WScript.exe
46	3504	WScript.exe

Drops startup file 2 IoCs

Processes:

WScript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IwhBHZSsWd.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IwhBHZSsWd.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-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\IwhBHZSsWd.js\""	WScript.exe

Drops file in Program Files directory 12 IoCs

Processes:

javaw.exe

description	ioc	process
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\server\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\server\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\server\symbols\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\symbols\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\server\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\symbols\dll\ntdll.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\server\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\server\symbols\dll\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\jvm.pdb	javaw.exe
File opened for modification	C:\Program Files\Java\jre1.8.0_66\bin\dll\jvm.pdb	javaw.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-1-5-21-941723256-3451054534-3089625102-1000_Classes\Local Settings wscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000_Classes\Local Settings	wscript.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 2644 wrote to memory of 3504	2644	wscript.exe	WScript.exe
PID 2644 wrote to memory of 3504	2644	wscript.exe	WScript.exe
PID 2644 wrote to memory of 3664	2644	wscript.exe	javaw.exe
PID 2644 wrote to memory of 3664	2644	wscript.exe	javaw.exe

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\SHIPMENTDOCUMENTS PDF.js"
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2644

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\IwhBHZSsWd.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:3504

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\ftyuljcq.txt"
2⤵
- Drops file in Program Files directory
PID:3664

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\IwhBHZSsWd.js
MD5
be3598b9ef31862aa34d1b79014c22de

SHA1
4d102790ec4bb3f6c95dc5097355c5f03c27beaf

SHA256
69ffc81cf2305ba7dedc79679eb1929dbdbf9e0a4cd6a53193c0367279750b4c

SHA512
778ad27bedbe8c275a5abdcba6f9a1ba43d8963ca67bbc768265fe6e5dcd380e1c7a191f7471364f5d6c22b1ba954819574f185141c631b2deca53a3ba6f7c01

Download Submit
C:\Users\Admin\AppData\Roaming\ftyuljcq.txt
MD5
4a769959e2ee2785d32ef2161f28cd8b

SHA1
e31b455b90081313e3b7405db3efe1582fe39daa

SHA256
496536d34981fc4155772fe136930ef13cf16116a4df18e6261dd084fce40b21

SHA512
8ef798581834a365f8a7649572c8683e9294cb950917b9c1e9b6ae60bf48b2e4d0e3be312843e398868f31835f276df24f4c5c2b6fb07b654322a8d5351815ca

Download Submit
memory/3504-115-0x0000000000000000-mapping.dmp

Download
memory/3664-128-0x0000000003040000-0x0000000003050000-memory.dmp

Filesize
64KB

Download
memory/3664-131-0x00000000030C0000-0x00000000030D0000-memory.dmp

Filesize
64KB

Download
memory/3664-120-0x0000000002DB0000-0x0000000003020000-memory.dmp

Filesize
2.4MB

Download
memory/3664-121-0x0000000000D00000-0x0000000000D01000-memory.dmp

Filesize
4KB

Download
memory/3664-124-0x0000000003020000-0x0000000003030000-memory.dmp

Filesize
64KB

Download
memory/3664-125-0x0000000003030000-0x0000000003040000-memory.dmp

Filesize
64KB

Download
memory/3664-126-0x0000000000D00000-0x0000000000D01000-memory.dmp

Filesize
4KB

Download
memory/3664-117-0x0000000000000000-mapping.dmp

Download
memory/3664-129-0x0000000003050000-0x0000000003060000-memory.dmp

Filesize
64KB

Download
memory/3664-119-0x0000000002DB0000-0x0000000003020000-memory.dmp

Filesize
2.4MB

Download
memory/3664-130-0x0000000003060000-0x0000000003070000-memory.dmp

Filesize
64KB

Download
memory/3664-133-0x00000000030D0000-0x00000000030E0000-memory.dmp

Filesize
64KB

Download
memory/3664-134-0x00000000030E0000-0x00000000030F0000-memory.dmp

Filesize
64KB

Download
memory/3664-135-0x0000000003070000-0x0000000003080000-memory.dmp

Filesize
64KB

Download
memory/3664-136-0x0000000003080000-0x0000000003090000-memory.dmp

Filesize
64KB

Download
memory/3664-137-0x0000000003090000-0x00000000030A0000-memory.dmp

Filesize
64KB

Download
memory/3664-138-0x00000000030A0000-0x00000000030B0000-memory.dmp

Filesize
64KB

Download
memory/3664-139-0x00000000030B0000-0x00000000030C0000-memory.dmp

Filesize
64KB

Download
memory/3664-140-0x00000000030F0000-0x0000000003100000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads