Analysis
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max time kernel
146s -
max time network
161s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
11/02/2023, 09:31
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://cdn-142.bayfiles.com/reU5O3V0yc/a12639e8-1676108456/CraxsRat-V3%202023.rar
Resource
win7-20220812-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
https://cdn-142.bayfiles.com/reU5O3V0yc/a12639e8-1676108456/CraxsRat-V3%202023.rar
Resource
win10v2004-20220812-en
windows10-2004-x64
1 signatures
150 seconds
General
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Target
https://cdn-142.bayfiles.com/reU5O3V0yc/a12639e8-1676108456/CraxsRat-V3%202023.rar
Score
1/10
Malware Config
Signatures
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Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 firefox.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Signature firefox.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~Mhz firefox.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier firefox.exe -
Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_Classes\Local Settings firefox.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache firefox.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1984 firefox.exe Token: SeDebugPrivilege 1984 firefox.exe -
Suspicious use of FindShellTrayWindow 4 IoCs
pid Process 1984 firefox.exe 1984 firefox.exe 1984 firefox.exe 1984 firefox.exe -
Suspicious use of SendNotifyMessage 3 IoCs
pid Process 1984 firefox.exe 1984 firefox.exe 1984 firefox.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 1984 firefox.exe 1984 firefox.exe 1984 firefox.exe 1984 firefox.exe 1984 firefox.exe 1984 firefox.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1428 wrote to memory of 1984 1428 firefox.exe 26 PID 1428 wrote to memory of 1984 1428 firefox.exe 26 PID 1428 wrote to memory of 1984 1428 firefox.exe 26 PID 1428 wrote to memory of 1984 1428 firefox.exe 26 PID 1428 wrote to memory of 1984 1428 firefox.exe 26 PID 1428 wrote to memory of 1984 1428 firefox.exe 26 PID 1428 wrote to memory of 1984 1428 firefox.exe 26 PID 1428 wrote to memory of 1984 1428 firefox.exe 26 PID 1428 wrote to memory of 1984 1428 firefox.exe 26 PID 1428 wrote to memory of 1984 1428 firefox.exe 26 PID 1984 wrote to memory of 1060 1984 firefox.exe 28 PID 1984 wrote to memory of 1060 1984 firefox.exe 28 PID 1984 wrote to memory of 1060 1984 firefox.exe 28 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1868 1984 firefox.exe 29 PID 1984 wrote to memory of 1560 1984 firefox.exe 30 PID 1984 wrote to memory of 1560 1984 firefox.exe 30 PID 1984 wrote to memory of 1560 1984 firefox.exe 30 PID 1984 wrote to memory of 1560 1984 firefox.exe 30 PID 1984 wrote to memory of 1560 1984 firefox.exe 30 PID 1984 wrote to memory of 1560 1984 firefox.exe 30 PID 1984 wrote to memory of 1560 1984 firefox.exe 30
Processes
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" https://cdn-142.bayfiles.com/reU5O3V0yc/a12639e8-1676108456/CraxsRat-V3%202023.rar1⤵
- Suspicious use of WriteProcessMemory
PID:1428 -
C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" https://cdn-142.bayfiles.com/reU5O3V0yc/a12639e8-1676108456/CraxsRat-V3%202023.rar2⤵
- Checks processor information in registry
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1984 -
C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1984.0.79809867\653450122" -parentBuildID 20200403170909 -prefsHandle 1196 -prefMapHandle 1188 -prefsLen 1 -prefMapSize 219796 -appdir "C:\Program Files\Mozilla Firefox\browser" - 1984 "\\.\pipe\gecko-crash-server-pipe.1984" 1272 gpu3⤵PID:1060
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1984.3.46134732\913639413" -childID 1 -isForBrowser -prefsHandle 1704 -prefMapHandle 1692 -prefsLen 156 -prefMapSize 219796 -parentBuildID 20200403170909 -appdir "C:\Program Files\Mozilla Firefox\browser" - 1984 "\\.\pipe\gecko-crash-server-pipe.1984" 1624 tab3⤵PID:1868
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C:\Program Files\Mozilla Firefox\firefox.exe"C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="1984.13.379090424\398642305" -childID 2 -isForBrowser -prefsHandle 2732 -prefMapHandle 2716 -prefsLen 7643 -prefMapSize 219796 -parentBuildID 20200403170909 -appdir "C:\Program Files\Mozilla Firefox\browser" - 1984 "\\.\pipe\gecko-crash-server-pipe.1984" 2744 tab3⤵PID:1560
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