wshrat | 1246c699ba88ef530372d136d772e5704e4d34aff31fb741899bcd5424b0e8bc

General

Target
IMG-8876-ORDER-998PDF-PRODUCTS.js
Size 217KB
Sample220520-qrf26adha8
SHA256 d56c3c009248c55acb99fa5d7c66ca8d6555a3559b66b69aeff99327aa9e2beb
MD5 2852bd566a1ec01b41c53e4e738c6f4a
SHA1 f777cd9e907866bfb9e5513c94fc84f2dcd2cd3a
SHA512 f1a75eb649375c2dd18072977e8ebd04988c705a3ecbca10e5cf5bda1e5886e26d66380467d221efbbaf3137128fda8fe62af61f728769dd47abfd79bf0f7e17
MD5 SHA1 SHA512

Score

10^/10

wshrat persistence trojan

Malware Config

Signatures

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

WSHRAT Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000b000000000038-131.dat	family_wshrat
behavioral2/files/0x0003000000000727-132.dat	family_wshrat

Blocklisted process makes network request 1 IoCs

flow	pid	Process
6	1568	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-1-5-21-3751123196-3323558407-1869646069-1000\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\IMG-8876-ORDER-998PDF-PRODUCTS.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IMG-8876-ORDER-998PDF-PRODUCTS.js	wscript.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\IMG-8876-ORDER-998PDF-PRODUCTS = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\IMG-8876-ORDER-998PDF-PRODUCTS.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\IMG-8876-ORDER-998PDF-PRODUCTS = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\IMG-8876-ORDER-998PDF-PRODUCTS.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\IMG-8876-ORDER-998PDF-PRODUCTS = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\IMG-8876-ORDER-998PDF-PRODUCTS.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\software\microsoft\windows\currentversion\run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\IMG-8876-ORDER-998PDF-PRODUCTS = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\IMG-8876-ORDER-998PDF-PRODUCTS.js\""	wscript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	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
5	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 1568	2860	wscript.exe	80
PID 2860 wrote to memory of 1568	2860	wscript.exe	80

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\IMG-8876-ORDER-998PDF-PRODUCTS.js
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2860
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\IMG-8876-ORDER-998PDF-PRODUCTS.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:1568

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

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

Replay Monitor

Loading Replay Monitor...

Downloads

IMG-8876-ORDER-998PDF-PRODUCTS.js

Path C:\Users\Admin\AppData\Roaming\IMG-8876-ORDER-998PDF-PRODUCTS.js
Size 217KB
SHA256 d56c3c009248c55acb99fa5d7c66ca8d6555a3559b66b69aeff99327aa9e2beb
MD5 2852bd566a1ec01b41c53e4e738c6f4a
SHA1 f777cd9e907866bfb9e5513c94fc84f2dcd2cd3a
SHA512 f1a75eb649375c2dd18072977e8ebd04988c705a3ecbca10e5cf5bda1e5886e26d66380467d221efbbaf3137128fda8fe62af61f728769dd47abfd79bf0f7e17
SSDEEP 6144:PpHgleX3reXhf6Z9pQDBvR4nRHFPAeRJAklgF2GuuZl:huf6ZUDJ6nlTrl029A
MD5 SHA1 SHA512 SSDEEP

Submit Download