vjw0rm | 4c9c294340ea1d2c1fc760fb5d5d55c378de7e369134bd1ac0c16bcad545af76

General

Target

BCGroup-191222-Order.js
Size

601KB
MD5

40918a71cd25cc1820b6e6e53bf0728d
SHA1

36761e8095259d13927cba982861e88df9ab501f
SHA256

4c9c294340ea1d2c1fc760fb5d5d55c378de7e369134bd1ac0c16bcad545af76
SHA512

4589969fe1752d1538383681be26ee8b95866b5794b104cf369cc81eadce237138ba68a9e9779cb56e7bcf4fa131cf71c569aaaac1a749b5976fa93e3fce56f6
SSDEEP

3072:CTw2WBCzajIMRoRO+Qchbchh3WZ/LKmWx1AKhKq+daJpOJVK5f9Ll/kFQkOzeI5k:CttlBQIcGsLlb3R7RSvTOUntCzp4W8

Score

10^/10

vjw0rm wshrat persistence trojan worm

Malware Config

Extracted

Family

wshrat

C2

http://45.139.105.174:1604

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
WSHRAT
WSHRAT is a variant of Houdini worm and has vbs and js variants.
trojan wshrat

Blocklisted process makes network request 30 IoCs

flow	pid	Process
6	1920	wscript.exe
7	1228	wscript.exe
8	1228	wscript.exe
9	1228	wscript.exe
11	1228	wscript.exe
14	1228	wscript.exe
15	1920	wscript.exe
17	1228	wscript.exe
19	1228	wscript.exe
20	1228	wscript.exe
21	1228	wscript.exe
24	1228	wscript.exe
25	1228	wscript.exe
26	1920	wscript.exe
28	1228	wscript.exe
30	1228	wscript.exe
31	1228	wscript.exe
34	1228	wscript.exe
36	1228	wscript.exe
37	1920	wscript.exe
39	1228	wscript.exe
40	1228	wscript.exe
42	1228	wscript.exe
44	1228	wscript.exe
45	1228	wscript.exe
48	1920	wscript.exe
49	1228	wscript.exe
50	1228	wscript.exe
51	1228	wscript.exe
53	1228	wscript.exe

Drops startup file 4 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\BCGroup-191222-Order.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\BCGroup-191222-Order.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\NeCfiNUwzW.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\NeCfiNUwzW.js	wscript.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\BCGroup-191222-Order = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\BCGroup-191222-Order.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\BCGroup-191222-Order = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\BCGroup-191222-Order.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

Script User-Agent 25 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	11	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	24	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	28	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	30	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	45	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	7	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	8	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	9	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	51	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	42	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	50	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	53	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	20	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	25	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	31	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	40	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	44	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	49	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	14	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	19	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	36	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	39	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	17	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	21	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript
HTTP User-Agent header	34	WSHRAT\|B07A99DC\|VDWSWJJD\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 19/12/2022\|JavaScript

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1228 wrote to memory of 1920	1228	wscript.exe	28
PID 1228 wrote to memory of 1920	1228	wscript.exe	28
PID 1228 wrote to memory of 1920	1228	wscript.exe	28

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\BCGroup-191222-Order.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1228
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\NeCfiNUwzW.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:1920

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
208KB

MD5
56d031be7e18c48c72c4f5a7ee653bd3

SHA1
ad3e60fb10c30b470d0d3a56a4b6df05b52a5158

SHA256
ef88fee65a5658a478e1f500a11f004084bf9b8c1c6ddbf8bdf3fd1e0c664e46

SHA512
fe8670f8d9d539e65d60fe2528d5c7fc59d08ec57cff6d60b18842785f3d5414eaaaf66a9de92164a8321ea9c7081b01698a6e76cf8227b84322369eb90e7070

Download Submit
memory/1228-54-0x000007FEFBCE1000-0x000007FEFBCE3000-memory.dmp

Filesize
8KB

Download

Analysis

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