wshrat | 83afc9dc11c5db83f7f4f7f065a184b24ab8fa95d5500b390052eacd0c9b19ae

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
29-03-2023 07:52

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General

Target

Equiptment_Order.vbs
Size

234KB
MD5

792c3b496734ad9ec371856e94f7cf35
SHA1

9ad583739ca482bee22c74b56e018893aa960595
SHA256

83afc9dc11c5db83f7f4f7f065a184b24ab8fa95d5500b390052eacd0c9b19ae
SHA512

ae95386382a5e631e3c0f1834c77e8130cc1ea608165fa2a5bcc863ba82da1d1a49e4b3623296e0083ed053f680d6a3a0a06f70f317e57016879d43a0ffeb87d
SSDEEP

768:BYaVSIsZ+XhEWr0AFYtAxY79BJWHkt06Dhp6y6ar7JFpt9u:lpx3

Score

10^/10

wshrat persistence trojan

Malware Config

Extracted

Family

wshrat

http://chongmei33.publicvm.com:7045

Signatures

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

Blocklisted process makes network request 23 IoCs

flow	pid	Process
4	2000	WScript.exe
5	2000	WScript.exe
6	2000	WScript.exe
8	2000	WScript.exe
10	2000	WScript.exe
11	2000	WScript.exe
13	2000	WScript.exe
14	2000	WScript.exe
15	2000	WScript.exe
17	2000	WScript.exe
18	2000	WScript.exe
19	2000	WScript.exe
21	2000	WScript.exe
22	2000	WScript.exe
23	2000	WScript.exe
25	2000	WScript.exe
26	2000	WScript.exe
27	2000	WScript.exe
29	2000	WScript.exe
30	2000	WScript.exe
31	2000	WScript.exe
33	2000	WScript.exe
34	2000	WScript.exe

Drops startup file 2 IoCs

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

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows\CurrentVersion\Run\Equiptment_Order = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\Equiptment_Order.vbs\""	WScript.exe
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\run	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Equiptment_Order = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\Equiptment_Order.vbs\""	WScript.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\software\microsoft\windows\currentversion\run	WScript.exe

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

System Information Discovery
T1082

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Equiptment_Order.vbs"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:2000

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
234KB

MD5
792c3b496734ad9ec371856e94f7cf35

SHA1
9ad583739ca482bee22c74b56e018893aa960595

SHA256
83afc9dc11c5db83f7f4f7f065a184b24ab8fa95d5500b390052eacd0c9b19ae

SHA512
ae95386382a5e631e3c0f1834c77e8130cc1ea608165fa2a5bcc863ba82da1d1a49e4b3623296e0083ed053f680d6a3a0a06f70f317e57016879d43a0ffeb87d

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