Analysis
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max time kernel
39s -
max time network
43s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
07-11-2022 12:24
Static task
static1
Behavioral task
behavioral1
Sample
71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe
Resource
win10v2004-20220812-en
General
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Target
71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe
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Size
40KB
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MD5
0df526fb078ea80877c53ca07981ead0
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SHA1
c1d6db91c7d69ad98949f7c25c13a9a84559cce1
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SHA256
71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0
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SHA512
a476b94d72eb257f6313e607ca908d6608b6c2e5a30b1d4fff17bd3437a52b3393c06a0017501815db3dcdb3176b220ce81245d9587c0bca0a294c27696505e8
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SSDEEP
768:/4q31nOB9pDFxP+4bfWdGn36VMHnKMGK0c1snx:/4o9qDpbf0sq6HMnx
Malware Config
Signatures
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Possible privilege escalation attempt 2 IoCs
Processes:
takeown.exeicacls.exepid process 1736 takeown.exe 1984 icacls.exe -
Modifies file permissions 1 TTPs 2 IoCs
Processes:
icacls.exetakeown.exepid process 1984 icacls.exe 1736 takeown.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exedescription ioc process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WiGCq = "C:\\Windows\\system32\\exds.exe" 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe -
Drops file in System32 directory 2 IoCs
Processes:
71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exedescription ioc process File opened for modification C:\Windows\SysWOW64\exds.exe 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe File created C:\Windows\SysWOW64\exds.exe 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe -
Processes:
regini.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main regini.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\Default_Page_URL = "http://www.zhuangxiu008.com/" regini.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\Main regini.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\Default_Page_URL = "http://www.zhuangxiu008.com/" regini.exe -
Modifies Internet Explorer start page 1 TTPs 2 IoCs
Processes:
regini.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\Start Page = "http://www.zhuangxiu008.com/" regini.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\Start Page = "http://www.zhuangxiu008.com/" regini.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exepid process 1476 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exedescription pid process target process PID 1476 wrote to memory of 1736 1476 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe takeown.exe PID 1476 wrote to memory of 1736 1476 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe takeown.exe PID 1476 wrote to memory of 1736 1476 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe takeown.exe PID 1476 wrote to memory of 1736 1476 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe takeown.exe PID 1476 wrote to memory of 1984 1476 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe icacls.exe PID 1476 wrote to memory of 1984 1476 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe icacls.exe PID 1476 wrote to memory of 1984 1476 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe icacls.exe PID 1476 wrote to memory of 1984 1476 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe icacls.exe PID 1476 wrote to memory of 1328 1476 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe regini.exe PID 1476 wrote to memory of 1328 1476 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe regini.exe PID 1476 wrote to memory of 1328 1476 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe regini.exe PID 1476 wrote to memory of 1328 1476 71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe regini.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe"C:\Users\Admin\AppData\Local\Temp\71c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0.exe"1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1476 -
C:\Windows\SysWOW64\takeown.exeC:\Windows\system32\takeown.exe /f "C:\Windows\system32\exds.exe"2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1736
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C:\Windows\SysWOW64\icacls.exeC:\Windows\system32\icacls.exe "C:\Windows\system32\exds.exe" /grant Users:F2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:1984
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C:\Windows\SysWOW64\regini.exeC:\Windows\system32\\regini.exe "C:\Users\Admin\AppData\Local\Temp\uucRftC.ini"2⤵
- Modifies Internet Explorer settings
- Modifies Internet Explorer start page
PID:1328
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
633B
MD5307edf4a3258717302e3d2ba7865ec69
SHA1faa9b10078b3ee200bea0cb2645157843a8e4908
SHA256bc4f3fa5dc6d89b482f4f09363cf82b6c6500b853b4d5fe3c589c4dc6601bf9a
SHA512dfaa7e643e0c477701cce3de1aba8d506a1063d72547d760bcc76c274dd9069ad6529dfe341ff4202a8d50aabaa712db4c76928cc455fefb3f1601cf85558715
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Filesize
40KB
MD50df526fb078ea80877c53ca07981ead0
SHA1c1d6db91c7d69ad98949f7c25c13a9a84559cce1
SHA25671c7c7abb28d61525629eae7155f7e6f80dd8ac5890bbffcda442fb7b9b914d0
SHA512a476b94d72eb257f6313e607ca908d6608b6c2e5a30b1d4fff17bd3437a52b3393c06a0017501815db3dcdb3176b220ce81245d9587c0bca0a294c27696505e8