Analysis
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max time kernel
150s -
max time network
95s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
11-10-2024 10:41
Static task
static1
Behavioral task
behavioral1
Sample
277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe
Resource
win7-20240903-en
General
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Target
277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe
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Size
6.5MB
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MD5
3394808f2d5c141b86e33a51ace8a577
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SHA1
2bb0408fff0e02cbe8bd35cf0fe12e63d5bd08e1
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SHA256
277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758
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SHA512
b125c00020afdf9ea17f49e01120bafff27cd10752a018dcdf3d064fa371991654a18d86cbe1accbec67e3f05ff0d6d0b2f4237c093acea43cef4fd206b7ad6a
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SSDEEP
49152:zX1kYWFZc6jmmW1RXZmRUd0/Gj4L1iNhQG3nHeSy/o+8k547W9UXwgZJ5hWGDPfk:zSzjmhasSGj4L0NhN3H1y/o+ZwW9
Malware Config
Signatures
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Detects CryptBot payload 1 IoCs
CryptBot is a C++ stealer distributed widely in bundle with other software.
Processes:
resource yara_rule behavioral2/memory/1544-0-0x0000000069CC0000-0x000000006A377000-memory.dmp family_cryptbot_v3 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation 277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe -
Executes dropped EXE 3 IoCs
Processes:
service123.exeservice123.exeservice123.exepid Process 4976 service123.exe 4716 service123.exe 3804 service123.exe -
Loads dropped DLL 3 IoCs
Processes:
service123.exeservice123.exeservice123.exepid Process 4976 service123.exe 4716 service123.exe 3804 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 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
service123.exeschtasks.exe277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language service123.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exedescription ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious use of WriteProcessMemory 6 IoCs
Processes:
277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exedescription pid Process procid_target PID 1544 wrote to memory of 4976 1544 277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe 88 PID 1544 wrote to memory of 4976 1544 277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe 88 PID 1544 wrote to memory of 4976 1544 277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe 88 PID 1544 wrote to memory of 2172 1544 277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe 91 PID 1544 wrote to memory of 2172 1544 277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe 91 PID 1544 wrote to memory of 2172 1544 277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe"C:\Users\Admin\AppData\Local\Temp\277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1544 -
C:\Users\Admin\AppData\Local\Temp\service123.exe"C:\Users\Admin\AppData\Local\Temp\service123.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:4976
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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:2172
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C:\Users\Admin\AppData\Local\Temp\service123.exeC:\Users\Admin\AppData\Local\Temp\/service123.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:4716
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C:\Users\Admin\AppData\Local\Temp\service123.exeC:\Users\Admin\AppData\Local\Temp\/service123.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:3804