wshrat | 7469ed4d59e6580cdeab5182930b2e2d50e662b9d18eefb964118fcf8c7f4f03

General

Target

Quotation.js
Size

1.0MB
MD5

7b3d2b6ee0d1b7dcd4848affd8eb41df
SHA1

5482b40c977ded69e5efd71240e989f03113c95a
SHA256

7469ed4d59e6580cdeab5182930b2e2d50e662b9d18eefb964118fcf8c7f4f03
SHA512

36d65113f20e3476c65057876aefba62b133fdedac1a54f92ce5ef42ca9198426f9941e7a5bd7fd89590f9c676183f5ea8d95b69d90db3349b1fec848411a47a
SSDEEP

6144:MQcpZc2Deey3T+J5hXbPgkjJeVK1Mkl88Ee9t9k/pol+zRjzPT+AjLvNnfywWleH:X6o

Score

10^/10

wshrat trojan

Malware Config

Extracted

Family

wshrat

C2

http://harold.ns01.info:3609

Signatures

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

Blocklisted process makes network request 13 IoCs

flow	pid	Process
7	4964	wscript.exe
10	4964	wscript.exe
17	4964	wscript.exe
18	4964	wscript.exe
32	4964	wscript.exe
33	4964	wscript.exe
34	4964	wscript.exe
41	4964	wscript.exe
42	4964	wscript.exe
48	4964	wscript.exe
49	4964	wscript.exe
50	4964	wscript.exe
51	4964	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-1-5-21-568313063-1441237985-1542345083-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Quotation.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Quotation.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
6	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 12 IoCs

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

description	flow	ioc
HTTP User-Agent header	17	WSHRAT\|A29528D6\|RUKGNMNN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 23/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	51	WSHRAT\|A29528D6\|RUKGNMNN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 23/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	41	WSHRAT\|A29528D6\|RUKGNMNN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 23/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	42	WSHRAT\|A29528D6\|RUKGNMNN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 23/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	48	WSHRAT\|A29528D6\|RUKGNMNN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 23/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	10	WSHRAT\|A29528D6\|RUKGNMNN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 23/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	18	WSHRAT\|A29528D6\|RUKGNMNN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 23/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	32	WSHRAT\|A29528D6\|RUKGNMNN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 23/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	33	WSHRAT\|A29528D6\|RUKGNMNN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 23/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	34	WSHRAT\|A29528D6\|RUKGNMNN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 23/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	49	WSHRAT\|A29528D6\|RUKGNMNN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 23/10/2023\|JavaScript-v3.4\|NL:Netherlands
HTTP User-Agent header	50	WSHRAT\|A29528D6\|RUKGNMNN\|Admin\|Microsoft Windows 10 Pro\|plus\|nan-av\|false - 23/10/2023\|JavaScript-v3.4\|NL:Netherlands

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4012 wrote to memory of 4964	4012	wscript.exe	87
PID 4012 wrote to memory of 4964	4012	wscript.exe	87

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Quotation.js
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:4012
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\Quotation.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  PID:4964

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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\Quotation.js

Filesize
1.0MB

MD5
7b3d2b6ee0d1b7dcd4848affd8eb41df

SHA1
5482b40c977ded69e5efd71240e989f03113c95a

SHA256
7469ed4d59e6580cdeab5182930b2e2d50e662b9d18eefb964118fcf8c7f4f03

SHA512
36d65113f20e3476c65057876aefba62b133fdedac1a54f92ce5ef42ca9198426f9941e7a5bd7fd89590f9c676183f5ea8d95b69d90db3349b1fec848411a47a

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

Filesize
1.0MB

MD5
7b3d2b6ee0d1b7dcd4848affd8eb41df

SHA1
5482b40c977ded69e5efd71240e989f03113c95a

SHA256
7469ed4d59e6580cdeab5182930b2e2d50e662b9d18eefb964118fcf8c7f4f03

SHA512
36d65113f20e3476c65057876aefba62b133fdedac1a54f92ce5ef42ca9198426f9941e7a5bd7fd89590f9c676183f5ea8d95b69d90db3349b1fec848411a47a

Download Submit
C:\Users\Admin\Quotation.js

Filesize
1.0MB

MD5
7b3d2b6ee0d1b7dcd4848affd8eb41df

SHA1
5482b40c977ded69e5efd71240e989f03113c95a

SHA256
7469ed4d59e6580cdeab5182930b2e2d50e662b9d18eefb964118fcf8c7f4f03

SHA512
36d65113f20e3476c65057876aefba62b133fdedac1a54f92ce5ef42ca9198426f9941e7a5bd7fd89590f9c676183f5ea8d95b69d90db3349b1fec848411a47a

Download Submit

Analysis

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