wshrat | 4f59887cc69a47f38ada16e76602ed520e235c9638923b8c17378c64252bd9fe

Analysis

max time kernel
147s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
18-05-2023 13:52

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General

Target

proof of payment.js
Size

996KB
MD5

7135b41aea77a2b6c6c7596a539b4969
SHA1

8ffe998003f2049c4853a86e9fcaf9fb77a2d175
SHA256

4f59887cc69a47f38ada16e76602ed520e235c9638923b8c17378c64252bd9fe
SHA512

804889018a76e00853f1207c129aaff3dfb8c7ed3de570195db2d1c4eb7de3a533ba294dfc2d5a63075267faffcb0547634a3659e75400955aa8e1f2373367b9
SSDEEP

6144:QQu9MZdOv/meeqFp/3Rxc/uzchRhVKlb90kNgQgaIZolrVBYWr+Uqb2KKV/mClfV:TCp

Score

10^/10

wshrat trojan

Malware Config

Extracted

Family

wshrat

http://harold.2waky.com:1604

Signatures

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

Blocklisted process makes network request 11 IoCs

flow	pid	Process
10	3936	wscript.exe
14	3936	wscript.exe
17	3936	wscript.exe
18	3936	wscript.exe
30	3936	wscript.exe
38	3936	wscript.exe
42	3936	wscript.exe
59	3936	wscript.exe
63	3936	wscript.exe
66	3936	wscript.exe
69	3936	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2548970870-3691742953-3895070203-1000\Control Panel\International\Geo\Nation	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
9	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 5 IoCs

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

description	flow	ioc
HTTP User-Agent header	14	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	17	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	38	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	59	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India
HTTP User-Agent header	69	WSHRAT\|A0A385EE\|LYVTYGSI\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 18/5/2023\|JavaScript-v3.4\|IN:India

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1560 wrote to memory of 3936	1560	wscript.exe	83
PID 1560 wrote to memory of 3936	1560	wscript.exe	83

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\proof of payment.js"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:1560
- 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:3936

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

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
996KB

MD5
7135b41aea77a2b6c6c7596a539b4969

SHA1
8ffe998003f2049c4853a86e9fcaf9fb77a2d175

SHA256
4f59887cc69a47f38ada16e76602ed520e235c9638923b8c17378c64252bd9fe

SHA512
804889018a76e00853f1207c129aaff3dfb8c7ed3de570195db2d1c4eb7de3a533ba294dfc2d5a63075267faffcb0547634a3659e75400955aa8e1f2373367b9

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

Filesize
996KB

MD5
7135b41aea77a2b6c6c7596a539b4969

SHA1
8ffe998003f2049c4853a86e9fcaf9fb77a2d175

SHA256
4f59887cc69a47f38ada16e76602ed520e235c9638923b8c17378c64252bd9fe

SHA512
804889018a76e00853f1207c129aaff3dfb8c7ed3de570195db2d1c4eb7de3a533ba294dfc2d5a63075267faffcb0547634a3659e75400955aa8e1f2373367b9

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

Filesize
996KB

MD5
7135b41aea77a2b6c6c7596a539b4969

SHA1
8ffe998003f2049c4853a86e9fcaf9fb77a2d175

SHA256
4f59887cc69a47f38ada16e76602ed520e235c9638923b8c17378c64252bd9fe

SHA512
804889018a76e00853f1207c129aaff3dfb8c7ed3de570195db2d1c4eb7de3a533ba294dfc2d5a63075267faffcb0547634a3659e75400955aa8e1f2373367b9

Download Submit