wshrat | f43d3dd0794bb4d89b813dcee1d029b0d743c2da958a0cf690582a2e71c00122

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
02-09-2024 05:46

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General

Target

MACHINE_SPECIFICATION.js
Size

7KB
MD5

d19beb79e886bf34835533189bf71c47
SHA1

fdfc5ab5e9613fead711101be1f3fb82521c6d32
SHA256

f43d3dd0794bb4d89b813dcee1d029b0d743c2da958a0cf690582a2e71c00122
SHA512

9e386dd16880addfb7f0ef5adbb72eeffae8365191a51631da399e2bb6b12f634c3dfcd878ea5d822a5d901db9014f28489e89e29b7983efcb578bd21010a1ce
SSDEEP

192:pyBl/3sunJVjnnbKe9VPvGulLdPCvUaVsC89ADYZsAPz:IBjTnTl9y1a5z

Score

10^/10

wshrat execution persistence trojan

Malware Config

Extracted

Family

wshrat

http://chongmei33.publicvm.com: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

flow	pid	Process
4	2372	wscript.exe
7	2828	wscript.exe
8	2828	wscript.exe
9	2828	wscript.exe
11	2828	wscript.exe
12	2828	wscript.exe
13	2828	wscript.exe
15	2828	wscript.exe
16	2828	wscript.exe
17	2828	wscript.exe
19	2828	wscript.exe
20	2828	wscript.exe
21	2828	wscript.exe
23	2828	wscript.exe
24	2828	wscript.exe
25	2828	wscript.exe
27	2828	wscript.exe
28	2828	wscript.exe
29	2828	wscript.exe
31	2828	wscript.exe
32	2828	wscript.exe
33	2828	wscript.exe
35	2828	wscript.exe
36	2828	wscript.exe
37	2828	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HVGBJI.vbs	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HVGBJI.vbs	wscript.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-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Windows\CurrentVersion\Run\HVGBJI = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\HVGBJI.vbs\""	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HVGBJI = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\HVGBJI.vbs\""	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Windows\CurrentVersion\Run\HVGBJI = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\HVGBJI.vbs\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HVGBJI = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\HVGBJI.vbs\""	wscript.exe

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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 1132	2372	wscript.exe	31
PID 2372 wrote to memory of 1132	2372	wscript.exe	31
PID 2372 wrote to memory of 1132	2372	wscript.exe	31
PID 1132 wrote to memory of 2828	1132	WScript.exe	32
PID 1132 wrote to memory of 2828	1132	WScript.exe	32
PID 1132 wrote to memory of 2828	1132	WScript.exe	32

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\MACHINE_SPECIFICATION.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\HVGBJI.vbs"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1132
- - C:\Windows\System32\wscript.exe
    "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\HVGBJI.vbs"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    - Adds Run key to start application
    PID:2828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

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

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\HVGBJI.vbs

Filesize
253KB

MD5
e0b9a7748f289bbcdac5546c26475fef

SHA1
417f7a2654c86b4a51e4d477246c312d009300c1

SHA256
114913df9d86d36a5541b5b85082eef8c19ce31db3928916a0dda6ec3fac0b68

SHA512
7a432f1ef6c5c09f046b07f7df2b67298589521f7b31e946f28b4d4e3969c4ff5427c40645a4050a54b9d9190286cb63492ec672ec97ceff1fb3c48bbe0715c0

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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HVGBJI.vbs

Filesize
253KB

MD5
b07fea4e553ee6b9c656c886a98b2a0a

SHA1
267d0db25efd2ca0b7db8bb4e2773a448ac9967c

SHA256
c3e20f14cbfafd1ba0417bffc3b29fa29820265c72f40d356d411c27bdcb8689

SHA512
f5236f938238acf375e18a8d2be7ff81e2a0796458b3b2fa6d93dac5a7489ca2a65dfb96f08eb525a101e7cd7db7183d5837397dca4ccd767389fffd897274a0

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads