Analysis
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max time kernel
150s -
max time network
94s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
09-09-2024 07:53
Static task
static1
Behavioral task
behavioral1
Sample
joffer2.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
joffer2.exe
Resource
win10v2004-20240802-en
General
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Target
joffer2.exe
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Size
6.3MB
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MD5
5f1dffeff8714e88b493506256db8f8a
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SHA1
d554da350b41da8556ce83ed851b975d2325a3d2
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SHA256
e372a2d6ea5d76b0ffbccfa5b6574b910826fb5b5998e8e5cc4dcd49f6dffff0
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SHA512
4bf57a4af1514111e301f8a1c8f3e2c145d078ba45a94edb71af6b1f9ca6dcfb3bd35d5114936f5c97ab4b1561b7b5afd4bfcc6d37b2f39b3aca0c96e0b28960
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SSDEEP
98304:/kmQ1cFviCNsYDiw7qVJ0K9hh/oHvC59i0ife:/kmQGviCbijV2Krhw65Upfe
Malware Config
Extracted
cryptbot
sevtv17sb.top
analforeverlovyu.top
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url_path
/v1/upload.php
Signatures
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Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
joffer2.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation joffer2.exe -
Executes dropped EXE 3 IoCs
Processes:
service123.exeservice123.exeservice123.exepid process 1944 service123.exe 4348 service123.exe 3976 service123.exe -
Loads dropped DLL 3 IoCs
Processes:
service123.exeservice123.exeservice123.exepid process 1944 service123.exe 4348 service123.exe 3976 service123.exe -
Reads user/profile data of web browsers 2 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:
joffer2.exeservice123.exeschtasks.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language joffer2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language service123.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.
Processes:
joffer2.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 joffer2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString joffer2.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:
joffer2.exedescription pid process target process PID 552 wrote to memory of 1944 552 joffer2.exe service123.exe PID 552 wrote to memory of 1944 552 joffer2.exe service123.exe PID 552 wrote to memory of 1944 552 joffer2.exe service123.exe PID 552 wrote to memory of 4496 552 joffer2.exe schtasks.exe PID 552 wrote to memory of 4496 552 joffer2.exe schtasks.exe PID 552 wrote to memory of 4496 552 joffer2.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\joffer2.exe"C:\Users\Admin\AppData\Local\Temp\joffer2.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:552 -
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:1944 -
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:4496
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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:4348
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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:3976