vjw0rm | d76d9fa7fa75a31b2a62804c8925a1c352f407831865bebc005b7f01676b5ac9

Analysis

max time kernel
148s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
29-03-2023 07:48

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General

Target

HAWB#68564359.pdf.js
Size

4.5MB
MD5

9cf2c793029ae8dd84a387ba66e8c432
SHA1

48f6d8e5c4f55434a3d1fdc1531bd37fb6248d10
SHA256

d76d9fa7fa75a31b2a62804c8925a1c352f407831865bebc005b7f01676b5ac9
SHA512

33dd2fbc290c8feb31570e200f469729d5385e3f214edb4299b47bd841a0cd24a9ea211808e6c58cef63a812b27558852dbed2daf0cfac8953b3d028fd019848
SSDEEP

24576:8NLb0+2xYFsLoDw9svltZ7r55HNYYkY4WOxbZQCgvRo5PD1rMLSeGU0pOlBY9Pcw:3ueQa

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 39 IoCs

flow	pid	Process
16	2012	wscript.exe
18	2276	wscript.exe
20	2276	wscript.exe
21	2068	wscript.exe
28	2012	wscript.exe
30	2068	wscript.exe
32	2012	wscript.exe
33	2068	wscript.exe
40	2012	wscript.exe
41	2276	wscript.exe
42	2068	wscript.exe
43	2012	wscript.exe
44	2068	wscript.exe
47	2012	wscript.exe
49	2068	wscript.exe
50	2276	wscript.exe
52	2012	wscript.exe
53	2068	wscript.exe
54	2012	wscript.exe
55	2068	wscript.exe
56	2012	wscript.exe
57	2068	wscript.exe
58	2276	wscript.exe
59	2012	wscript.exe
60	2068	wscript.exe
61	2012	wscript.exe
62	2068	wscript.exe
63	2012	wscript.exe
64	2068	wscript.exe
65	2276	wscript.exe
66	2012	wscript.exe
67	2068	wscript.exe
68	2012	wscript.exe
69	2068	wscript.exe
70	2012	wscript.exe
71	2276	wscript.exe
72	2068	wscript.exe
73	2012	wscript.exe
74	2068	wscript.exe

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 5 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xQgwkAjhRq.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HAWB#68564359.pdf.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xQgwkAjhRq.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HAWB#68564359.pdf.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xQgwkAjhRq.js	wscript.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HAWB#68564359 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\HAWB#68564359.pdf.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HAWB#68564359 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\HAWB#68564359.pdf.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HAWB#68564359 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\HAWB#68564359.pdf.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HAWB#68564359 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\HAWB#68564359.pdf.js\""	wscript.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
17	ip-api.com

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 6 IoCs

description	pid	Process	procid_target
PID 3208 wrote to memory of 2012	3208	wscript.exe	81
PID 3208 wrote to memory of 2012	3208	wscript.exe	81
PID 3208 wrote to memory of 2276	3208	wscript.exe	82
PID 3208 wrote to memory of 2276	3208	wscript.exe	82
PID 2276 wrote to memory of 2068	2276	wscript.exe	86
PID 2276 wrote to memory of 2068	2276	wscript.exe	86

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\HAWB#68564359.pdf.js
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3208
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\xQgwkAjhRq.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:2012
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\HAWB#68564359.pdf.js"
  2⤵
  - Blocklisted process makes network request
  - Checks computer location settings
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2276
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\xQgwkAjhRq.js"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    PID:2068

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\HAWB#68564359.pdf.js

Filesize
4.5MB

MD5
9cf2c793029ae8dd84a387ba66e8c432

SHA1
48f6d8e5c4f55434a3d1fdc1531bd37fb6248d10

SHA256
d76d9fa7fa75a31b2a62804c8925a1c352f407831865bebc005b7f01676b5ac9

SHA512
33dd2fbc290c8feb31570e200f469729d5385e3f214edb4299b47bd841a0cd24a9ea211808e6c58cef63a812b27558852dbed2daf0cfac8953b3d028fd019848

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HAWB#68564359.pdf.js

Filesize
4.5MB

MD5
9cf2c793029ae8dd84a387ba66e8c432

SHA1
48f6d8e5c4f55434a3d1fdc1531bd37fb6248d10

SHA256
d76d9fa7fa75a31b2a62804c8925a1c352f407831865bebc005b7f01676b5ac9

SHA512
33dd2fbc290c8feb31570e200f469729d5385e3f214edb4299b47bd841a0cd24a9ea211808e6c58cef63a812b27558852dbed2daf0cfac8953b3d028fd019848

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HAWB#68564359.pdf.js

Filesize
4.5MB

MD5
9cf2c793029ae8dd84a387ba66e8c432

SHA1
48f6d8e5c4f55434a3d1fdc1531bd37fb6248d10

SHA256
d76d9fa7fa75a31b2a62804c8925a1c352f407831865bebc005b7f01676b5ac9

SHA512
33dd2fbc290c8feb31570e200f469729d5385e3f214edb4299b47bd841a0cd24a9ea211808e6c58cef63a812b27558852dbed2daf0cfac8953b3d028fd019848

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xQgwkAjhRq.js

Filesize
346KB

MD5
0fbcb6f83b0f64e57835d021bb6e917d

SHA1
0fa656e1cf06a0ea20e19a4ddd951f0d0d05dc38

SHA256
c518c547d809de7ccae1259611bcb52d6fa435cff67c910d25c5b961ddc45466

SHA512
70f322596a2ba8e079d39d35a10e771f8269dc08e03713736ba070f6cf34cf9bbcb9ac1065a66ad0a0afb66ad68e000953e593164d8858224ce1aeb4cde5120f

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

Filesize
346KB

MD5
0fbcb6f83b0f64e57835d021bb6e917d

SHA1
0fa656e1cf06a0ea20e19a4ddd951f0d0d05dc38

SHA256
c518c547d809de7ccae1259611bcb52d6fa435cff67c910d25c5b961ddc45466

SHA512
70f322596a2ba8e079d39d35a10e771f8269dc08e03713736ba070f6cf34cf9bbcb9ac1065a66ad0a0afb66ad68e000953e593164d8858224ce1aeb4cde5120f

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

Filesize
346KB

MD5
0fbcb6f83b0f64e57835d021bb6e917d

SHA1
0fa656e1cf06a0ea20e19a4ddd951f0d0d05dc38

SHA256
c518c547d809de7ccae1259611bcb52d6fa435cff67c910d25c5b961ddc45466

SHA512
70f322596a2ba8e079d39d35a10e771f8269dc08e03713736ba070f6cf34cf9bbcb9ac1065a66ad0a0afb66ad68e000953e593164d8858224ce1aeb4cde5120f

Download Submit