vjw0rm | ee80374831fab3f0f3adff5866ec8dacfd1001454b416c121ec5dcba099c5a51

Analysis

max time kernel
146s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19-04-2024 14:01

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General

Target

fa7455d6a61fb3e6188ac979bbe934e7_JaffaCakes118.js
Size

31KB
MD5

fa7455d6a61fb3e6188ac979bbe934e7
SHA1

79015b30c58c35330d500967afbf6f1ba5e9f924
SHA256

ee80374831fab3f0f3adff5866ec8dacfd1001454b416c121ec5dcba099c5a51
SHA512

981662d3abbc5022a456509a352e9c5fa998d10aab21a99a1f082105f085696243281b669302e22b8059b1f8b30ea0aba98a5d14945c17a22f86ad06bf3f3747
SSDEEP

768:s14jK4anPHIspku5360lXGdcY3KEyTZT2p0VTx5NEY03l83:E4SHIa5XGdcJSpATx5eU

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 32 IoCs

Processes:

wscript.exe

flow	pid	process
5	1368	wscript.exe
7	1368	wscript.exe
9	1368	wscript.exe
10	1368	wscript.exe
13	1368	wscript.exe
14	1368	wscript.exe
17	1368	wscript.exe
18	1368	wscript.exe
21	1368	wscript.exe
22	1368	wscript.exe
24	1368	wscript.exe
25	1368	wscript.exe
28	1368	wscript.exe
30	1368	wscript.exe
32	1368	wscript.exe
33	1368	wscript.exe
35	1368	wscript.exe
36	1368	wscript.exe
40	1368	wscript.exe
41	1368	wscript.exe
43	1368	wscript.exe
44	1368	wscript.exe
46	1368	wscript.exe
48	1368	wscript.exe
51	1368	wscript.exe
52	1368	wscript.exe
55	1368	wscript.exe
56	1368	wscript.exe
58	1368	wscript.exe
59	1368	wscript.exe
61	1368	wscript.exe
63	1368	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\tHpwtWlHkV.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tHpwtWlHkV.js	wscript.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\tHpwtWlHkV.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 3 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 1368 wrote to memory of 2744	1368	wscript.exe	wscript.exe
PID 1368 wrote to memory of 2744	1368	wscript.exe	wscript.exe
PID 1368 wrote to memory of 2744	1368	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\fa7455d6a61fb3e6188ac979bbe934e7_JaffaCakes118.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\tHpwtWlHkV.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
10KB

MD5
f8c499a37127e740518507c1d3a2caa3

SHA1
9798bedde67191ad5f515d30fe30b6616965355f

SHA256
10ab2382646c3af7434f6db3001f43954b57e3274ab8780e031663af06506d9c

SHA512
5886f47fe9abc391a79ac17c84b9387f8b8258dcea754dbe21332b5d7e8c818d0b62e527e0a5291f66ade5dcfd1e16d62fbbfb19787256f79ff2dd7b2b214a50

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