Analysis
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max time kernel
119s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
20/09/2024, 22:24
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2dN.exe
Resource
win7-20240903-en
windows7-x64
9 signatures
120 seconds
Behavioral task
behavioral2
Sample
22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2dN.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
9 signatures
120 seconds
General
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Target
22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2dN.exe
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Size
88KB
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MD5
821d510395390ac84f27da308cc89870
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SHA1
e68a1d54f0f21955cd79aac9cb2d26c0cd7af284
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SHA256
22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2d
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SHA512
af2038d097e9c54c1d806ea7c51c41ee7214edfa7596a7708f9fd65590eeb3710b25f8803bfa85969167d9b1d76269e8ffad454a54d44d9af8deca9d92af883b
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SSDEEP
768:Hl6jxOJETcaz9IHpFeh6RM1rA8dOsk7jbqqRkA5okK1DfsvtDzsXjLft+9o1Jz:Hlcx/AauLFUnzJA5o9BfItDoXjLl0+z
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2dN.exe Set value (int) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" coasu.exe -
Executes dropped EXE 1 IoCs
pid Process 1452 coasu.exe -
Loads dropped DLL 2 IoCs
pid Process 2132 22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2dN.exe 2132 22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2dN.exe -
Adds Run key to start application 2 TTPs 27 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /j" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /n" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /o" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /u" 22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2dN.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /m" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /f" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /v" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /g" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /y" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /i" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /t" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /k" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /c" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /s" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /l" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /q" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /p" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /u" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /z" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /h" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /b" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /w" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /x" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /r" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /d" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /a" coasu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\coasu = "C:\\Users\\Admin\\coasu.exe /e" coasu.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2dN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language coasu.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2132 22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2dN.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe 1452 coasu.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2132 22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2dN.exe 1452 coasu.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2132 wrote to memory of 1452 2132 22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2dN.exe 28 PID 2132 wrote to memory of 1452 2132 22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2dN.exe 28 PID 2132 wrote to memory of 1452 2132 22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2dN.exe 28 PID 2132 wrote to memory of 1452 2132 22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2dN.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2dN.exe"C:\Users\Admin\AppData\Local\Temp\22073eaf595dfde02c3f7356e728e9e1075f7d589839493824d7a3e3cddbcc2dN.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2132 -
C:\Users\Admin\coasu.exe"C:\Users\Admin\coasu.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1452
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
88KB
MD50f9ff991478ae6753a90eb06d2bfb532
SHA17e9aa757fe9856ffbcf33452ca9d43a16c0136e6
SHA256a392a464bacbe738d991745b3b68787a4734a5c501151907607f2a07472dd979
SHA51225a8f5321eb5164ba682ece1a9baed82ea360113fe94ffc0d60828dde692a5c3d8f3e1750fb970eb0af211e46537166e0068727d811b49d1310d426d9524f97e