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Analysis
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max time kernel
150s -
max time network
52s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
04/10/2022, 04:13
Static task
static1
Behavioral task
behavioral1
Sample
2eb5cf1f5dd8acea648d86d54b6325a4b3b146d980722f0e5b6266cf7bcd1748.exe
Resource
win7-20220901-en
windows7-x64
Behavioral task
behavioral2
Sample
2eb5cf1f5dd8acea648d86d54b6325a4b3b146d980722f0e5b6266cf7bcd1748.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
General
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Target
2eb5cf1f5dd8acea648d86d54b6325a4b3b146d980722f0e5b6266cf7bcd1748.exe
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Size
77KB
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MD5
17665658ccc54d4145afc324e041a427
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SHA1
407297f11604fef0b32aa30dddf64c2ab0d51484
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SHA256
2eb5cf1f5dd8acea648d86d54b6325a4b3b146d980722f0e5b6266cf7bcd1748
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SHA512
216d133734a06cb70a3aafb424359cfd80d936bc5444547c1dbd9ac03152693128f9126b6cc406192e8354a34e8fc1176de3918b20a498066d10d6eb8f6d4c3a
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SSDEEP
1536:tWADAwtzns15Bx8pEttgdO/mXpgWXOJgQmmogDcMH5fCVsJVafuegWXAi+oX9tWY:tWADAwtzns15Bx8pEttgdO/mXpgWXOJe
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" caoum.exe -
Executes dropped EXE 1 IoCs
pid Process 812 caoum.exe -
Loads dropped DLL 2 IoCs
pid Process 1196 2eb5cf1f5dd8acea648d86d54b6325a4b3b146d980722f0e5b6266cf7bcd1748.exe 1196 2eb5cf1f5dd8acea648d86d54b6325a4b3b146d980722f0e5b6266cf7bcd1748.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ caoum.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caoum = "C:\\Users\\Admin\\caoum.exe" caoum.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe 812 caoum.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1196 2eb5cf1f5dd8acea648d86d54b6325a4b3b146d980722f0e5b6266cf7bcd1748.exe 812 caoum.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1196 wrote to memory of 812 1196 2eb5cf1f5dd8acea648d86d54b6325a4b3b146d980722f0e5b6266cf7bcd1748.exe 27 PID 1196 wrote to memory of 812 1196 2eb5cf1f5dd8acea648d86d54b6325a4b3b146d980722f0e5b6266cf7bcd1748.exe 27 PID 1196 wrote to memory of 812 1196 2eb5cf1f5dd8acea648d86d54b6325a4b3b146d980722f0e5b6266cf7bcd1748.exe 27 PID 1196 wrote to memory of 812 1196 2eb5cf1f5dd8acea648d86d54b6325a4b3b146d980722f0e5b6266cf7bcd1748.exe 27 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26 PID 812 wrote to memory of 1196 812 caoum.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\2eb5cf1f5dd8acea648d86d54b6325a4b3b146d980722f0e5b6266cf7bcd1748.exe"C:\Users\Admin\AppData\Local\Temp\2eb5cf1f5dd8acea648d86d54b6325a4b3b146d980722f0e5b6266cf7bcd1748.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1196 -
C:\Users\Admin\caoum.exe"C:\Users\Admin\caoum.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:812
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
77KB
MD529767b13c26323be4774c8477c319a86
SHA155ec3a99162b38e6833f61d1358ba4f36e1339cb
SHA256dca88cca719a7716bbf72723169199416a430dc670adeee1d7014f1784804b24
SHA51239b0cc5eda350ed834b98792a2d91ddef1c3b470ef09b6b43745d149d78001b115ca6408c0b24e4754156bbbb9fbc96d263789f1d4ea3ad8117e1f683e3902f6
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Filesize
77KB
MD529767b13c26323be4774c8477c319a86
SHA155ec3a99162b38e6833f61d1358ba4f36e1339cb
SHA256dca88cca719a7716bbf72723169199416a430dc670adeee1d7014f1784804b24
SHA51239b0cc5eda350ed834b98792a2d91ddef1c3b470ef09b6b43745d149d78001b115ca6408c0b24e4754156bbbb9fbc96d263789f1d4ea3ad8117e1f683e3902f6
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Filesize
77KB
MD529767b13c26323be4774c8477c319a86
SHA155ec3a99162b38e6833f61d1358ba4f36e1339cb
SHA256dca88cca719a7716bbf72723169199416a430dc670adeee1d7014f1784804b24
SHA51239b0cc5eda350ed834b98792a2d91ddef1c3b470ef09b6b43745d149d78001b115ca6408c0b24e4754156bbbb9fbc96d263789f1d4ea3ad8117e1f683e3902f6
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Filesize
77KB
MD529767b13c26323be4774c8477c319a86
SHA155ec3a99162b38e6833f61d1358ba4f36e1339cb
SHA256dca88cca719a7716bbf72723169199416a430dc670adeee1d7014f1784804b24
SHA51239b0cc5eda350ed834b98792a2d91ddef1c3b470ef09b6b43745d149d78001b115ca6408c0b24e4754156bbbb9fbc96d263789f1d4ea3ad8117e1f683e3902f6