wshrat | fba9f9a0ff16e84ba7fc7b57850f86a1865391ac840f340f6fab233339b20919

Analysis

max time kernel
151s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
20-08-2023 11:30

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General

Target

ORDER-230918PA.XLS.js
Size

7KB
MD5

88bf291984995a3806e28a362c5f5bf2
SHA1

5b1362033885067323c063748efdf193d8ee710d
SHA256

fba9f9a0ff16e84ba7fc7b57850f86a1865391ac840f340f6fab233339b20919
SHA512

8074ab938b1a7a4c4c778009e5cf1c7a773eaef97ebdf3503a3771aa98ef575a1010d7654a17a9b3727134e98eb0d13fbcd0405a39ce8dac199bd8b5132c9f09
SSDEEP

48:60ZwVq3vMB5tVk6VVUPN2MTwmyrV2QJ1qXwnqNAsVEWEF:i7

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 29 IoCs

flow	pid	Process
2	4164	wscript.exe
4	4164	wscript.exe
6	4164	wscript.exe
8	4164	wscript.exe
16	4800	WScript.exe
28	4800	WScript.exe
29	4800	WScript.exe
45	4800	WScript.exe
46	4800	WScript.exe
47	4800	WScript.exe
48	4800	WScript.exe
49	4800	WScript.exe
50	4800	WScript.exe
51	4800	WScript.exe
55	4800	WScript.exe
56	4800	WScript.exe
59	4800	WScript.exe
60	4800	WScript.exe
61	4800	WScript.exe
62	4800	WScript.exe
63	4800	WScript.exe
64	4800	WScript.exe
65	4800	WScript.exe
66	4800	WScript.exe
67	4800	WScript.exe
68	4800	WScript.exe
73	4800	WScript.exe
74	4800	WScript.exe
75	4800	WScript.exe

Drops startup file 2 IoCs

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1498570331-2313266200-788959944-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WOAHUS = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\WOAHUS.vbs\""	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WOAHUS = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\WOAHUS.vbs\""	WScript.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1498570331-2313266200-788959944-1000_Classes\Local Settings	wscript.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4164 wrote to memory of 4800	4164	wscript.exe	81
PID 4164 wrote to memory of 4800	4164	wscript.exe	81

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\ORDER-230918PA.XLS.js
1⤵
- Blocklisted process makes network request
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4164
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\WOAHUS.vbs"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:4800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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\WOAHUS.vbs

Filesize
243KB

MD5
69ac7e038effb4a60a906bb43ccae6fb

SHA1
9bef6b5ff1bd0c6ec5e57efae80d4d303d5582a7

SHA256
61b43d95f7c0e0cb258513ef2d81d3a482b7e39f31cd039252ca05f72997d93c

SHA512
8f48438ec155af7bd6fe2213b8cd42b58407472f7988dc6ad3916c443d55fa240bbb9cf2e7e306bcaa872a51a73a6a8c5f0b36af9dd4ccbeecab81f32cd8929f

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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