Analysis
- max time kernel
290s - max time network
304s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
26/09/2024, 22:35
General
- Target 3949006957ea55af22ff7e57fc95f3bcd9cde5ffe597e76a3ba22fdcb67314f7.exe
- Size 6.3MB
- Sample240926-2hq2js1flj
- SHA256 3949006957ea55af22ff7e57fc95f3bcd9cde5ffe597e76a3ba22fdcb67314f7
Malware Config
Extracted
-
cryptbot
-
thirtvf13sr.top
-
url_path
/v1/upload.php
Signatures
- CryptBot
CryptBot is a C++ stealer distributed widely in bundle with other software.
- Executes dropped EXE 6 IoCs
- Loads dropped DLL 6 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\3949006957ea55af22ff7e57fc95f3bcd9cde5ffe597e76a3ba22fdcb67314f7.exe"C:\Users\Admin\AppData\Local\Temp\3949006957ea55af22ff7e57fc95f3bcd9cde5ffe597e76a3ba22fdcb67314f7.exe"1⤵
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
-
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
-
-
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
-
-
C:\Users\Admin\AppData\Local\Temp\service123.exeC:\Users\Admin\AppData\Local\Temp\/service123.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
-
C:\Users\Admin\AppData\Local\Temp\service123.exeC:\Users\Admin\AppData\Local\Temp\/service123.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
-
C:\Users\Admin\AppData\Local\Temp\service123.exeC:\Users\Admin\AppData\Local\Temp\/service123.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
-
C:\Users\Admin\AppData\Local\Temp\service123.exeC:\Users\Admin\AppData\Local\Temp\/service123.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
-
C:\Users\Admin\AppData\Local\Temp\service123.exeC:\Users\Admin\AppData\Local\Temp\/service123.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/512-15-0x0000000000C00000-0x0000000000C11000-memory.dmp
memory/512-16-0x0000000074450000-0x000000007457C000-memory.dmp
memory/752-14-0x0000000000C00000-0x0000000000C11000-memory.dmp
memory/2280-0-0x0000000000400000-0x000000000105E000-memory.dmp
memory/2280-1-0x0000000000400000-0x000000000105E000-memory.dmp
memory/2280-9-0x0000000000400000-0x000000000105E000-memory.dmp
memory/2680-44-0x0000000000C00000-0x0000000000C11000-memory.dmp
memory/4236-74-0x0000000000C00000-0x0000000000C11000-memory.dmp
memory/4808-29-0x0000000000C00000-0x0000000000C11000-memory.dmp
memory/4884-59-0x0000000000C00000-0x0000000000C11000-memory.dmp