wshrat | 70485d4f6c3c72f2cb5df9b62858652cc9e87751fed8bad111383a12e09747bf

General

Target

25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e.vbs
Size

19KB
MD5

433febbbc8e5d0eeed7b3aaa9ad15558
SHA1

83905f45e2c6977f35e7db522052295d739fd667
SHA256

25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e
SHA512

6cae2f6e7b86052af6f812e815128f67ce76f44e56b9bfdb5e4fa0ce2fba5610deb830334162b330e5e494bece380d1f7e053f6f89eac398d48fe49cbb3626ec
SSDEEP

384:vKNssJiGagRYwZSFFOECXCghDStXdTX2XXXiXs31TNWE/cJ1:vq9agRYwZSGECXCgM7rGHqc1IE/m

Score

10^/10

wshrat persistence trojan

Malware Config

Extracted

Family

wshrat

C2

http://paulrdp02.duckdns.org:1604

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.exe

flow	pid	process
5	4192	wscript.exe
34	4192	wscript.exe
45	4192	wscript.exe
56	4192	wscript.exe
61	4192	wscript.exe
74	4192	wscript.exe
86	4192	wscript.exe
124	4192	wscript.exe
130	4192	wscript.exe
138	4192	wscript.exe
142	4192	wscript.exe
153	4192	wscript.exe
159	4192	wscript.exe
173	4192	wscript.exe
183	4192	wscript.exe
185	4192	wscript.exe
196	4192	wscript.exe
200	4192	wscript.exe
207	4192	wscript.exe
209	4192	wscript.exe
229	4192	wscript.exe
237	4192	wscript.exe
245	4192	wscript.exe
250	4192	wscript.exe
255	4192	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

Processes:

WScript.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation WScript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	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\25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e.vbs	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e.vbs	wscript.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-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e.vbs\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e.vbs\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e.vbs\""	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e.vbs\""	WScript.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WScript.exe

description	pid	process	target process
PID 4816 wrote to memory of 4192	4816	WScript.exe	wscript.exe
PID 4816 wrote to memory of 4192	4816	WScript.exe	wscript.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e.vbs"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4816

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e.vbs"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:4192

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Roaming\25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e.vbs
Filesize
19KB

MD5
433febbbc8e5d0eeed7b3aaa9ad15558

SHA1
83905f45e2c6977f35e7db522052295d739fd667

SHA256
25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e

SHA512
6cae2f6e7b86052af6f812e815128f67ce76f44e56b9bfdb5e4fa0ce2fba5610deb830334162b330e5e494bece380d1f7e053f6f89eac398d48fe49cbb3626ec

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\25b4135b1c971889bcf7b36da063ea24025e2a67e22b3dd84ebb8f556b75823e.vbs
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads