Analysis
- max time kernel
141s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
12/09/2022, 08:45
Static task
static1
Behavioral task
behavioral1
Sample
doc2.aspx
Resource
win7-20220901-en
windows7-x64
4 signatures
150 seconds
Behavioral task
behavioral2
Sample
doc2.aspx
Resource
win10v2004-20220812-en
windows10-2004-x64
5 signatures
150 seconds
General
- Target doc2.aspx
- Size 13B
- Sample220912-kntwyschd3
- SHA256 4ff21bbd07bdcae4b3dd0dc1fa5646cf2f037039c90c16e8524c413aa73fbcfe
- MD5 bf9859562a838793808f162f59a451a6
- SHA1 6edf259df3a9031428ca8a2e56c4da1caff643af
- SHA512 44a5c6d6b9a0abc766f0981cb6be67d5356d270c3421f8c65ed5f29d603470e4ae0dde5c16d583cc095f1c0645f28a830167afc2474b1e1087eb560d3433bb70
- MD5 SHA1 SHA512
Score
3/10
Malware Config
Signatures
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Modifies registry class 13 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings cmd.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\aspx_auto_file OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\.aspx OpenWith.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\.aspx\ = "aspx_auto_file" OpenWith.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\aspx_auto_file\shell\open\command\ = "\"%ProgramFiles%\\Windows NT\\Accessories\\WORDPAD.EXE\" \"%1\"" OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\aspx_auto_file\shell\open\command OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\ OpenWith.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\\ = "aspx_auto_file" OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\袵ᓓ峆蠀 OpenWith.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\袵ᓓ峆蠀\ = "aspx_auto_file" OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\aspx_auto_file\shell\open OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\aspx_auto_file\shell OpenWith.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4476 OpenWith.exe - Suspicious use of SetWindowsHookEx 62 IoCs
pid Process 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 4476 OpenWith.exe 3896 WORDPAD.EXE 3896 WORDPAD.EXE 3896 WORDPAD.EXE 3896 WORDPAD.EXE 3896 WORDPAD.EXE - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4476 wrote to memory of 3896 4476 OpenWith.exe 94 PID 4476 wrote to memory of 3896 4476 OpenWith.exe 94
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\doc2.aspx1⤵
- Modifies registry class
PID:3088
-
C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4476 -
C:\Program Files\Windows NT\Accessories\WORDPAD.EXE"C:\Program Files\Windows NT\Accessories\WORDPAD.EXE" "C:\Users\Admin\AppData\Local\Temp\doc2.aspx"2⤵
- Suspicious use of SetWindowsHookEx
PID:3896
-
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:1588