Analysis
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max time kernel
150s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
09-10-2024 23:56
Static task
static1
Behavioral task
behavioral1
Sample
SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe
Resource
win7-20240708-en
General
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Target
SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe
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Size
7.4MB
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MD5
735bb5f55a17215700840c04a8b40a03
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SHA1
55e0828c6d08653939eee2b1af8fd737e92266c4
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SHA256
5ea6a5e3bc6c02cc41637028050c3738c38a07917e373637928b314c5d22f84d
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SHA512
7e742677e35099d8cd4a5163eea6633e3ec7deeb4840aba1f8adad8f0022e72f7416ac6367802eceab8f9f2e9dd04e1546b141e911495d025b98575a92f3865c
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SSDEEP
49152:nCzghh+QpdFFMWcrlPNIEFUFisMn6bejffibgpiBX9rijpGeP/4scMlVFty:nCzg3+QpdETKvw+UKgEX9Y
Malware Config
Signatures
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Detects CryptBot payload 1 IoCs
CryptBot is a C++ stealer distributed widely in bundle with other software.
resource yara_rule behavioral1/memory/2700-0-0x0000000069CC0000-0x000000006A377000-memory.dmp family_cryptbot_v3 -
Executes dropped EXE 3 IoCs
pid Process 2756 service123.exe 2944 service123.exe 2080 service123.exe -
Loads dropped DLL 5 IoCs
pid Process 2700 SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe 2700 SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe 2756 service123.exe 2944 service123.exe 2080 service123.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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 SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2588 schtasks.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 2700 wrote to memory of 2756 2700 SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe 30 PID 2700 wrote to memory of 2756 2700 SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe 30 PID 2700 wrote to memory of 2756 2700 SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe 30 PID 2700 wrote to memory of 2756 2700 SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe 30 PID 2700 wrote to memory of 2588 2700 SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe 31 PID 2700 wrote to memory of 2588 2700 SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe 31 PID 2700 wrote to memory of 2588 2700 SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe 31 PID 2700 wrote to memory of 2588 2700 SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe 31 PID 1688 wrote to memory of 2944 1688 taskeng.exe 34 PID 1688 wrote to memory of 2944 1688 taskeng.exe 34 PID 1688 wrote to memory of 2944 1688 taskeng.exe 34 PID 1688 wrote to memory of 2944 1688 taskeng.exe 34 PID 1688 wrote to memory of 2080 1688 taskeng.exe 35 PID 1688 wrote to memory of 2080 1688 taskeng.exe 35 PID 1688 wrote to memory of 2080 1688 taskeng.exe 35 PID 1688 wrote to memory of 2080 1688 taskeng.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.10335.644.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2700 -
C:\Users\Admin\AppData\Local\Temp\service123.exe"C:\Users\Admin\AppData\Local\Temp\service123.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2756
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2588
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C:\Windows\system32\taskeng.exetaskeng.exe {178103F3-316D-4C11-B79D-78B34956E1C0} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:1688 -
C:\Users\Admin\AppData\Local\Temp\service123.exeC:\Users\Admin\AppData\Local\Temp\/service123.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2944
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C:\Users\Admin\AppData\Local\Temp\service123.exeC:\Users\Admin\AppData\Local\Temp\/service123.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2080
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