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Analysis
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max time kernel
142s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
01/01/2024, 14:48
Behavioral task
behavioral1
Sample
3d21b194848bcc9ca12d0cd50799cc6a.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
3d21b194848bcc9ca12d0cd50799cc6a.exe
Resource
win10v2004-20231215-en
General
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Target
3d21b194848bcc9ca12d0cd50799cc6a.exe
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Size
620KB
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MD5
3d21b194848bcc9ca12d0cd50799cc6a
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SHA1
4ed618dc96c97165b5eb323d03a758109246015b
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SHA256
034def8699fcee0b0c1db57256eb26c9fea7112cada866c52f2bac068b9f7b51
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SHA512
a1a1f5a69223c9cd0a767facb3d610a06fe49d616290c764bb09c7110a47392275761d411b05aec0d052843a4134054954ff0b263bab547ae74ee5cae9b48fcc
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SSDEEP
12288:nJJzHqYFKUU7LLOf6h+Hcfprp8++tbnJwd0wn+Z9i6bbNDUnq4UrqqwAjuMWsWW:JpHHkUUk6h+8b+JJj9i6bbND/4UmYPWs
Malware Config
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 3d21b194848bcc9ca12d0cd50799cc6a.exe -
resource yara_rule behavioral1/memory/2004-0-0x0000000000400000-0x0000000000569000-memory.dmp themida behavioral1/memory/2004-5-0x0000000000400000-0x0000000000569000-memory.dmp themida behavioral1/memory/2004-6-0x0000000000400000-0x0000000000569000-memory.dmp themida behavioral1/memory/2004-7-0x0000000000400000-0x0000000000569000-memory.dmp themida behavioral1/memory/2004-8-0x0000000000400000-0x0000000000569000-memory.dmp themida behavioral1/memory/2004-9-0x0000000000400000-0x0000000000569000-memory.dmp themida behavioral1/memory/2004-10-0x0000000000400000-0x0000000000569000-memory.dmp themida behavioral1/memory/2004-11-0x0000000000400000-0x0000000000569000-memory.dmp themida behavioral1/memory/2004-13-0x0000000000400000-0x0000000000569000-memory.dmp themida behavioral1/memory/2004-14-0x0000000000400000-0x0000000000569000-memory.dmp themida behavioral1/memory/2004-15-0x0000000000400000-0x0000000000569000-memory.dmp themida behavioral1/memory/2004-16-0x0000000000400000-0x0000000000569000-memory.dmp themida behavioral1/memory/2004-17-0x0000000000400000-0x0000000000569000-memory.dmp themida behavioral1/memory/2004-18-0x0000000000400000-0x0000000000569000-memory.dmp themida behavioral1/memory/2004-19-0x0000000000400000-0x0000000000569000-memory.dmp themida behavioral1/memory/2004-20-0x0000000000400000-0x0000000000569000-memory.dmp themida -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 3d21b194848bcc9ca12d0cd50799cc6a.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\drivers 3d21b194848bcc9ca12d0cd50799cc6a.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 20 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1" 3d21b194848bcc9ca12d0cd50799cc6a.exe Key created \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags 3d21b194848bcc9ca12d0cd50799cc6a.exe Set value (data) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff 3d21b194848bcc9ca12d0cd50799cc6a.exe Key created \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 3d21b194848bcc9ca12d0cd50799cc6a.exe Key created \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 3d21b194848bcc9ca12d0cd50799cc6a.exe Set value (data) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff 3d21b194848bcc9ca12d0cd50799cc6a.exe Key created \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg 3d21b194848bcc9ca12d0cd50799cc6a.exe Key created \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell 3d21b194848bcc9ca12d0cd50799cc6a.exe Set value (data) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots 3d21b194848bcc9ca12d0cd50799cc6a.exe Set value (data) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff 3d21b194848bcc9ca12d0cd50799cc6a.exe Set value (data) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f4225481e03947bc34db131e946b44c8dd50000 3d21b194848bcc9ca12d0cd50799cc6a.exe Set value (data) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 9e0000001a00eebbfe23000010007db10d7bd29c934a973346cc89022e7c00002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020002a0000000000efbe7e47b3fbe4c93b4ba2bad3f5d3cd46f98207ba827a5b6945b5d7ec83085f08cc20002a0000000000efbe000000200000000000000000000000000000000000000000000000000100000020000000 3d21b194848bcc9ca12d0cd50799cc6a.exe Set value (data) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 3d21b194848bcc9ca12d0cd50799cc6a.exe Key created \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 3d21b194848bcc9ca12d0cd50799cc6a.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_FolderType = "{FBB3477E-C9E4-4B3B-A2BA-D3F5D3CD46F9}" 3d21b194848bcc9ca12d0cd50799cc6a.exe Key created \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU 3d21b194848bcc9ca12d0cd50799cc6a.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewID = "{82BA0782-5B7A-4569-B5D7-EC83085F08CC}" 3d21b194848bcc9ca12d0cd50799cc6a.exe Set value (data) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff 3d21b194848bcc9ca12d0cd50799cc6a.exe Set value (int) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\TV_TopViewVersion = "0" 3d21b194848bcc9ca12d0cd50799cc6a.exe Key created \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_Classes\Local Settings 3d21b194848bcc9ca12d0cd50799cc6a.exe -
NTFS ADS 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Local\Temp\"C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe" \DelayServices 3d21b194848bcc9ca12d0cd50799cc6a.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2004 3d21b194848bcc9ca12d0cd50799cc6a.exe 2004 3d21b194848bcc9ca12d0cd50799cc6a.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2004 3d21b194848bcc9ca12d0cd50799cc6a.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2004 3d21b194848bcc9ca12d0cd50799cc6a.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2004 3d21b194848bcc9ca12d0cd50799cc6a.exe 2004 3d21b194848bcc9ca12d0cd50799cc6a.exe -
System policy modification 1 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System 3d21b194848bcc9ca12d0cd50799cc6a.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 3d21b194848bcc9ca12d0cd50799cc6a.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3d21b194848bcc9ca12d0cd50799cc6a.exe"C:\Users\Admin\AppData\Local\Temp\3d21b194848bcc9ca12d0cd50799cc6a.exe"1⤵
- UAC bypass
- Checks whether UAC is enabled
- Drops file in System32 directory
- Modifies registry class
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- System policy modification
PID:2004