wshrat | 72c9ae0599080805aa46a4cf5adb2685ad6d5e81f6fc8ae53b7a232d406f186b

Analysis

max time kernel
145s
max time network
146s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01-05-2024 06:40

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General

Target

01052024_0640_us.txt.js
Size

634KB
MD5

be1960a5bede346d98723b0fc76d2f02
SHA1

c0e53f5d259ed10a802cc0a6c96728f3df32864a
SHA256

72c9ae0599080805aa46a4cf5adb2685ad6d5e81f6fc8ae53b7a232d406f186b
SHA512

e22c79f8d568e57c3e6c6d1edfadaa2373a7bbecff1875a43b6a509465e79b98fd4551256248266dfb2c6a76eaf38b8cc0df0eabe27cff355d9f4bba8f9be780
SSDEEP

12288:Pimg0Vtx60ZGnZH19ndYeIrWr/qRigAyX/DvZvTbxzhbObcizI/mofdEMdNtQCBx:Pimg0VtxMnZH19dYeIrWr/qRigAyX/DN

Score

10^/10

wshrat persistence trojan

Malware Config

Extracted

Family

wshrat

http://masterokrwh.duckdns.org:8426

Signatures

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

Blocklisted process makes network request 32 IoCs

flow	pid	Process
3	2300	wscript.exe
4	2300	wscript.exe
8	2300	wscript.exe
10	2300	wscript.exe
11	2300	wscript.exe
12	2300	wscript.exe
14	2300	wscript.exe
15	2300	wscript.exe
16	2300	wscript.exe
18	2300	wscript.exe
19	2300	wscript.exe
20	2300	wscript.exe
22	2300	wscript.exe
23	2300	wscript.exe
24	2300	wscript.exe
26	2300	wscript.exe
27	2300	wscript.exe
28	2300	wscript.exe
30	2300	wscript.exe
31	2300	wscript.exe
32	2300	wscript.exe
34	2300	wscript.exe
35	2300	wscript.exe
36	2300	wscript.exe
38	2300	wscript.exe
39	2300	wscript.exe
40	2300	wscript.exe
42	2300	wscript.exe
43	2300	wscript.exe
44	2300	wscript.exe
46	2300	wscript.exe
47	2300	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\01052024_0640_us.txt.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\01052024_0640_us.txt.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\01052024_0640_us = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\01052024_0640_us.txt.js\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\01052024_0640_us = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\01052024_0640_us.txt.js\""	wscript.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
2	pastebin.com
4	pastebin.com

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
7	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 31 IoCs

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

description	flow	ioc
HTTP User-Agent header	38	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	46	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	11	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	15	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	18	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	22	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	42	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	10	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	28	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	35	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	36	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	47	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	20	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	30	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	34	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	44	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	19	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	23	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	31	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	43	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	14	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	24	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	27	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	39	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	40	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	32	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	12	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	16	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom
HTTP User-Agent header	26	WSHRAT\|D0F97DBD\|IZKCKOTP\|Admin\|Microsoft Windows 7 Ultimate \|plus\|nan-av\|false - 1/5/2024\|JavaScript-v3.4\|GB:United Kingdom

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\01052024_0640_us.txt.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:2300

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\01052024_0640_us.txt.js

Filesize
634KB

MD5
be1960a5bede346d98723b0fc76d2f02

SHA1
c0e53f5d259ed10a802cc0a6c96728f3df32864a

SHA256
72c9ae0599080805aa46a4cf5adb2685ad6d5e81f6fc8ae53b7a232d406f186b

SHA512
e22c79f8d568e57c3e6c6d1edfadaa2373a7bbecff1875a43b6a509465e79b98fd4551256248266dfb2c6a76eaf38b8cc0df0eabe27cff355d9f4bba8f9be780

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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