Analysis
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max time kernel
157s -
max time network
173s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
01/01/2024, 09:59
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
00cbea11b439af95c3f7ccca541a2e67.exe
Resource
win7-20231129-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
00cbea11b439af95c3f7ccca541a2e67.exe
Resource
win10v2004-20231215-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
00cbea11b439af95c3f7ccca541a2e67.exe
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Size
48KB
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MD5
00cbea11b439af95c3f7ccca541a2e67
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SHA1
3f56e8b1398780227ed0b8a1caf7a92f94a66644
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SHA256
866c02e0d3c0cce817ac7ece77915e6bd6fa6c97e45645da69aa94d1ac2a9e38
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SHA512
11b13b1a29252ca58b799d07acabfe29c9d3f11550cde77ad310eeb27704ef25c6dee723ad132f3faee6e4ac28416ccd5a4bf247e7ab9af3d04d3c88b316d50f
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SSDEEP
768:CNNEhmmgXq0b18wWv+6wH9H7MfygXaDMFQXD7e:CNamVqI8h6NNDsQXD7
Score
10/10
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-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" riuom.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation 00cbea11b439af95c3f7ccca541a2e67.exe -
Executes dropped EXE 1 IoCs
pid Process 1336 riuom.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riuom = "C:\\Users\\Admin\\riuom.exe" riuom.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe 1336 riuom.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 5092 00cbea11b439af95c3f7ccca541a2e67.exe 1336 riuom.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 5092 wrote to memory of 1336 5092 00cbea11b439af95c3f7ccca541a2e67.exe 91 PID 5092 wrote to memory of 1336 5092 00cbea11b439af95c3f7ccca541a2e67.exe 91 PID 5092 wrote to memory of 1336 5092 00cbea11b439af95c3f7ccca541a2e67.exe 91 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15 PID 1336 wrote to memory of 5092 1336 riuom.exe 15
Processes
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C:\Users\Admin\AppData\Local\Temp\00cbea11b439af95c3f7ccca541a2e67.exe"C:\Users\Admin\AppData\Local\Temp\00cbea11b439af95c3f7ccca541a2e67.exe"1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5092 -
C:\Users\Admin\riuom.exe"C:\Users\Admin\riuom.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:1336
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
48KB
MD50d5905941e4ffec5c5578ffebd5d75ee
SHA1da8b5f81511eda1624cb2c52dded6dfbe81f7185
SHA256bb16551b184a863632536291c6470fd9b6769a0c31ecd1ea8e43dc2873b62509
SHA5128fd6d83179312787ecf807b40c2e7387a1eaee97bc113829504f3a2e60a2775cfa044c3837744732a042d400b8efd215a43912edeaf7fd86069ceee8fa7259e5