wshrat | ed3867747c220cc11f5115b4926c74d63cec22cf2d58f5554b832dd2a02718d3

General

Target

proof of payment.js
Size

900KB
MD5

6e554787e0c33f72d3b40fc0a9efb825
SHA1

127105cd35967eac8a7299fccd7532c56de70a0c
SHA256

ed3867747c220cc11f5115b4926c74d63cec22cf2d58f5554b832dd2a02718d3
SHA512

e61d1ccc093d942c645aba2da28872854a70f560e483ac01b3246f36623f9df9c428f2b410bed4985bd75f49b51ee28e50a03d2d4211664e298e7eb874bb26a0
SSDEEP

6144:MQDZ29oDbwBXoS+idRXVY1205EBnBCHUMvXzdgfe44jSY77rLQwfu4dr4fgbQZer:XN

Score

10^/10

wshrat trojan

Malware Config

Extracted

Family

wshrat

C2

http://harold.ns01.info:1604

Signatures

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

Blocklisted process makes network request 21 IoCs

flow	pid	Process
5	2740	wscript.exe
7	2740	wscript.exe
8	2740	wscript.exe
9	2740	wscript.exe
11	2740	wscript.exe
12	2740	wscript.exe
13	2740	wscript.exe
15	2740	wscript.exe
16	2740	wscript.exe
17	2740	wscript.exe
19	2740	wscript.exe
20	2740	wscript.exe
21	2740	wscript.exe
23	2740	wscript.exe
24	2740	wscript.exe
25	2740	wscript.exe
29	2740	wscript.exe
30	2740	wscript.exe
31	2740	wscript.exe
33	2740	wscript.exe
34	2740	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\proof of payment.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\proof of payment.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 20 IoCs

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

description	flow	ioc
HTTP User-Agent header	24	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	15	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	16	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	19	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	25	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	29	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	34	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	8	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	13	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	12	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	17	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	23	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	30	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	33	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	7	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	11	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	21	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	31	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	9	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	20	WSHRAT\|48E58919\|URUOZWGF\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 27/10/2023\|JavaScript-v3.4\|NL:Netherlands

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 2740	2300	wscript.exe	29
PID 2300 wrote to memory of 2740	2300	wscript.exe	29
PID 2300 wrote to memory of 2740	2300	wscript.exe	29

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\proof of payment.js"
1⤵
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\proof of payment.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:2740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Microsoft\Windows\Start Menu\Programs\Startup\proof of payment.js

Filesize
900KB

MD5
6e554787e0c33f72d3b40fc0a9efb825

SHA1
127105cd35967eac8a7299fccd7532c56de70a0c

SHA256
ed3867747c220cc11f5115b4926c74d63cec22cf2d58f5554b832dd2a02718d3

SHA512
e61d1ccc093d942c645aba2da28872854a70f560e483ac01b3246f36623f9df9c428f2b410bed4985bd75f49b51ee28e50a03d2d4211664e298e7eb874bb26a0

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

Filesize
900KB

MD5
6e554787e0c33f72d3b40fc0a9efb825

SHA1
127105cd35967eac8a7299fccd7532c56de70a0c

SHA256
ed3867747c220cc11f5115b4926c74d63cec22cf2d58f5554b832dd2a02718d3

SHA512
e61d1ccc093d942c645aba2da28872854a70f560e483ac01b3246f36623f9df9c428f2b410bed4985bd75f49b51ee28e50a03d2d4211664e298e7eb874bb26a0

Download Submit
C:\Users\Admin\proof of payment.js

Filesize
900KB

MD5
6e554787e0c33f72d3b40fc0a9efb825

SHA1
127105cd35967eac8a7299fccd7532c56de70a0c

SHA256
ed3867747c220cc11f5115b4926c74d63cec22cf2d58f5554b832dd2a02718d3

SHA512
e61d1ccc093d942c645aba2da28872854a70f560e483ac01b3246f36623f9df9c428f2b410bed4985bd75f49b51ee28e50a03d2d4211664e298e7eb874bb26a0

Download Submit

Analysis

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