vjw0rm | f2c0c7e926d66df5fad3e991b038d6b2f2609efdab00b6e99ccc0ad27dee0260

General

Target

ca905686651e423399d864687173d5472e4ecdbc76ea201b46d23012c799b617.js
Size

107KB
MD5

05d29ef471cbead69dd8c6f56a900004
SHA1

fa017cb4a1ad381d6b0569f7ec50791822350ba4
SHA256

ca905686651e423399d864687173d5472e4ecdbc76ea201b46d23012c799b617
SHA512

81f86970b830533d080e1627ffbb2bb4148a71b0bc9692553928f5f6671c4c8b2bc2d7648adb3b6d61bab2fc8437ab9ecff344d382af2701645b5b9e17eefd08

Score

10^/10

vjw0rm persistence suricata trojan worm

Malware Config

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
suricata: ET MALWARE Worm.VBS Dunihi/Houdini/H-Worm Checkin UA
suricata: ET MALWARE Worm.VBS Dunihi/Houdini/H-Worm Checkin UA
suricata
suricata: ET MALWARE Worm.VBS Dunihi/Houdini/H-Worm/WSHRAT Checkin 1
suricata: ET MALWARE Worm.VBS Dunihi/Houdini/H-Worm/WSHRAT Checkin 1
suricata

Blocklisted process makes network request 44 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
9	4572	wscript.exe
10	3940	wscript.exe
17	4572	wscript.exe
18	3940	wscript.exe
21	4572	wscript.exe
26	4572	wscript.exe
28	3940	wscript.exe
29	4572	wscript.exe
30	4572	wscript.exe
34	3940	wscript.exe
38	4572	wscript.exe
39	4572	wscript.exe
40	3940	wscript.exe
42	4572	wscript.exe
45	3940	wscript.exe
46	4572	wscript.exe
47	4572	wscript.exe
48	3940	wscript.exe
51	4572	wscript.exe
52	4572	wscript.exe
53	3940	wscript.exe
57	4572	wscript.exe
58	4572	wscript.exe
59	3940	wscript.exe
60	4572	wscript.exe
61	3940	wscript.exe
62	4572	wscript.exe
65	4572	wscript.exe
66	3940	wscript.exe
67	4572	wscript.exe
68	4572	wscript.exe
69	3940	wscript.exe
70	4572	wscript.exe
71	4572	wscript.exe
72	3940	wscript.exe
73	4572	wscript.exe
74	4572	wscript.exe
75	3940	wscript.exe
76	4572	wscript.exe
77	4572	wscript.exe
78	3940	wscript.exe
79	4572	wscript.exe
80	4572	wscript.exe
81	3940	wscript.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

wscript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 4 IoCs

Processes:

wscript.exewscript.exe

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

Adds Run key to start application 2 TTPs 6 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exewscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\hmmm = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\hmmm.vbs\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\hmmm = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\hmmm.vbs\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Roaming\\zpgygxtRex.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

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 4120 wrote to memory of 3940	4120	wscript.exe	wscript.exe
PID 4120 wrote to memory of 3940	4120	wscript.exe	wscript.exe
PID 4120 wrote to memory of 4572	4120	wscript.exe	wscript.exe
PID 4120 wrote to memory of 4572	4120	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\ca905686651e423399d864687173d5472e4ecdbc76ea201b46d23012c799b617.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\zpgygxtRex.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:3940
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" "C:\Users\Admin\AppData\Roaming\hmmm.vbs"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:4572

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\hmmm.vbs

Filesize
13KB

MD5
2eb194e1b54695a5c2aeb82b95807606

SHA1
f148013459520d855a4177d980b3870ef1d6b8f0

SHA256
404dfe7add02b2973a45f43d425005451c7b6ff688e5177dd7c7606a1a7320d6

SHA512
5c17914444aaa0d6c5ed6703ae9cf22f15b35cdc55ee68bac46142a9e21fefebf373957def42b8b66e027579f747a9ca5f9ca95bf69cb919ea104232570c0670

Download Submit
C:\Users\Admin\AppData\Roaming\zpgygxtRex.js

Filesize
30KB

MD5
7c2e7e5a48421b27561a23936f1d9fee

SHA1
739fde5b0ad4d2f651a16e2458bf3e64bfa748b0

SHA256
c409b163881ea5ee746756d65f515f7a5dca8b622e6d1e557ef963acb6849000

SHA512
149fe69bf7b778ca8e450c2b0d3c4b54a34023b908b8705a65d8da9d060b0e4e46346664f45e100969af3c21315f2bcd9f517ee99b94dfe5bf8134c9cf0dc323

Download Submit
memory/3940-130-0x0000000000000000-mapping.dmp

Download
memory/4572-131-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads