wshrat | 421eba1200bceb1ca0a67b6d0ce9b2f659b09e45efe04d7d173e7a738c4ccae5

General

Target

7133dc35b5ca15d27934a2ebaeb71ca36987752e34b65f87a9507ac02381a9e1.js
Size

1.1MB
MD5

2ccb346e287c2eaaf1954e289d85bb90
SHA1

589b523fdf4feadab37b5ca37f3940b9e068935a
SHA256

7133dc35b5ca15d27934a2ebaeb71ca36987752e34b65f87a9507ac02381a9e1
SHA512

7219218464cbc5b14c33a7b41208ce23608931c6d9e9bd7524f72039d0cb016e256e0f18b3d3f6140a50e058f01d21a5b275a89406b88c0b347b24d6c44efca4
SSDEEP

6144:QQ87FYrGNaJRpypQNKpSoZWaOHWFgqvUe/i7EnI1jtImrA/dgtrltwgV2X4EJIgq:T61wzl

Score

10^/10

wshrat trojan

Malware Config

Extracted

Family

wshrat

C2

http://harold.2waky.com:3609

Signatures

WSHRAT
WSHRAT is a variant of Houdini worm and has vbs and js variants.
trojan wshrat

Blocklisted process makes network request 25 IoCs

flow	pid	Process
4	520	wscript.exe
6	520	wscript.exe
7	520	wscript.exe
8	520	wscript.exe
10	520	wscript.exe
12	520	wscript.exe
13	520	wscript.exe
15	520	wscript.exe
16	520	wscript.exe
17	520	wscript.exe
19	520	wscript.exe
20	520	wscript.exe
21	520	wscript.exe
23	520	wscript.exe
24	520	wscript.exe
25	520	wscript.exe
27	520	wscript.exe
28	520	wscript.exe
29	520	wscript.exe
31	520	wscript.exe
32	520	wscript.exe
33	520	wscript.exe
35	520	wscript.exe
36	520	wscript.exe
37	520	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7133dc35b5ca15d27934a2ebaeb71ca36987752e34b65f87a9507ac02381a9e1.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7133dc35b5ca15d27934a2ebaeb71ca36987752e34b65f87a9507ac02381a9e1.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
3	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Script User-Agent 24 IoCs

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

description	flow	ioc
HTTP User-Agent header	33	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	37	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	7	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	8	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	17	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	24	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	27	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	21	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	25	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	28	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	6	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	10	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	12	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	13	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	15	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	31	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	35	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	19	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	32	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	16	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	20	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	23	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	29	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	36	WSHRAT\|7031BB36\|BPOQNXYB\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 28/5/2023\|JavaScript-v3.4\|IN:India

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 912 wrote to memory of 520	912	wscript.exe	29
PID 912 wrote to memory of 520	912	wscript.exe	29
PID 912 wrote to memory of 520	912	wscript.exe	29

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\7133dc35b5ca15d27934a2ebaeb71ca36987752e34b65f87a9507ac02381a9e1.js
1⤵
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:912
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\7133dc35b5ca15d27934a2ebaeb71ca36987752e34b65f87a9507ac02381a9e1.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:520

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\7133dc35b5ca15d27934a2ebaeb71ca36987752e34b65f87a9507ac02381a9e1.js

Filesize
1.1MB

MD5
2ccb346e287c2eaaf1954e289d85bb90

SHA1
589b523fdf4feadab37b5ca37f3940b9e068935a

SHA256
7133dc35b5ca15d27934a2ebaeb71ca36987752e34b65f87a9507ac02381a9e1

SHA512
7219218464cbc5b14c33a7b41208ce23608931c6d9e9bd7524f72039d0cb016e256e0f18b3d3f6140a50e058f01d21a5b275a89406b88c0b347b24d6c44efca4

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7133dc35b5ca15d27934a2ebaeb71ca36987752e34b65f87a9507ac02381a9e1.js

Filesize
1.1MB

MD5
2ccb346e287c2eaaf1954e289d85bb90

SHA1
589b523fdf4feadab37b5ca37f3940b9e068935a

SHA256
7133dc35b5ca15d27934a2ebaeb71ca36987752e34b65f87a9507ac02381a9e1

SHA512
7219218464cbc5b14c33a7b41208ce23608931c6d9e9bd7524f72039d0cb016e256e0f18b3d3f6140a50e058f01d21a5b275a89406b88c0b347b24d6c44efca4

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7133dc35b5ca15d27934a2ebaeb71ca36987752e34b65f87a9507ac02381a9e1.js

Filesize
1.1MB

MD5
2ccb346e287c2eaaf1954e289d85bb90

SHA1
589b523fdf4feadab37b5ca37f3940b9e068935a

SHA256
7133dc35b5ca15d27934a2ebaeb71ca36987752e34b65f87a9507ac02381a9e1

SHA512
7219218464cbc5b14c33a7b41208ce23608931c6d9e9bd7524f72039d0cb016e256e0f18b3d3f6140a50e058f01d21a5b275a89406b88c0b347b24d6c44efca4

Download Submit

Analysis

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