vjw0rm | 0e8c99f0e1fd9ea10d561d07a7bb1a0e26b6ae081d1324f5549489e58f4b3255

General

Target

receipt.js
Size

22KB
MD5

31178620b92ff3a6eccf7f99d0afab59
SHA1

8d703a22a6759103b2a1ff50d08f467dbb6dbd0f
SHA256

0e8c99f0e1fd9ea10d561d07a7bb1a0e26b6ae081d1324f5549489e58f4b3255
SHA512

ae8f0e92c4c5acc91d3bd532b00b4ef8dcfe00b58611cbd40e0093f7402f0165095661b61f2621e0f64feba356c3fafc2f55ef892cc1f6924b79c05b2c0bbe68

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

C2

http://zeegod.duckdns.org:9999

Signatures

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

Blocklisted process makes network request 18 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
8	1040	wscript.exe
9	1632	wscript.exe
10	1040	wscript.exe
12	1040	wscript.exe
15	1040	wscript.exe
17	1040	wscript.exe
18	1040	wscript.exe
21	1040	wscript.exe
23	1040	wscript.exe
24	1040	wscript.exe
27	1040	wscript.exe
29	1040	wscript.exe
31	1040	wscript.exe
33	1040	wscript.exe
35	1040	wscript.exe
37	1040	wscript.exe
40	1040	wscript.exe
42	1040	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\receipt.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eAJLfWOZNj.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eAJLfWOZNj.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-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\eAJLfWOZNj.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\TJIPC622E2 = "\"C:\\Users\\Admin\\AppData\\Roaming\\receipt.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

1756 schtasks.exe

pid	process
1756	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 1632 wrote to memory of 1040	1632	wscript.exe	wscript.exe
PID 1632 wrote to memory of 1040	1632	wscript.exe	wscript.exe
PID 1632 wrote to memory of 1040	1632	wscript.exe	wscript.exe
PID 1632 wrote to memory of 1756	1632	wscript.exe	schtasks.exe
PID 1632 wrote to memory of 1756	1632	wscript.exe	schtasks.exe
PID 1632 wrote to memory of 1756	1632	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\receipt.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\eAJLfWOZNj.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:1040
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\receipt.js
  2⤵
  - Creates scheduled task(s)
  PID:1756

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

MD5
a1a31dc3ddf5ec6d22c1538fd10cc20c

SHA1
fb9198ed29ce113f70a31452ccf989889ac26e0a

SHA256
c0a9ac7a4f98418d786fc01ce03a70b69885e5a894972a45b5aadd0a152b91c4

SHA512
0f208998ae86f41e9fa694e260ecc3a44109fb29b7afdeaa2193f117a52bc028585ea766ebd3ed5253b1d678c47ce8cf487ec72f8199317acc6f86a53be52909

Download Submit
memory/1040-56-0x0000000000000000-mapping.dmp

Download
memory/1632-55-0x000007FEFB791000-0x000007FEFB793000-memory.dmp

Filesize
8KB

Download
memory/1756-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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