Analysis
- max time kernel
139s - max time network
150s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
08/03/2022, 16:49
General
- Target OPEN_2022-03-08_10-05.exe
- Size 302KB
- Sample220308-vb4whacbdr
- SHA256 115aa1897c771a95c9d7e20926264e7804f48dcb5db25cfa67b83257cbe2fe6b
Malware Config
Extracted
-
azorult
-
http://2.56.59.31/purelogs/index.php
Signatures
- Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
- suricata: ET MALWARE AZORult v3.3 Server Response M1
suricata: ET MALWARE AZORult v3.3 Server Response M1
- suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M16
suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M16
- Loads dropped DLL 4 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- 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). Likely ransomware behaviour.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\OPEN_2022-03-08_10-05.exe"C:\Users\Admin\AppData\Local\Temp\OPEN_2022-03-08_10-05.exe"1⤵
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c C:\Windows\system32\timeout.exe 3 & del "OPEN_2022-03-08_10-05.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exeC:\Windows\system32\timeout.exe 33⤵
- Delays execution with timeout.exe
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3536-115-0x0000000000480000-0x00000000005CA000-memory.dmp
memory/3536-116-0x0000000000480000-0x00000000005CA000-memory.dmp
memory/3536-117-0x0000000000400000-0x000000000047C000-memory.dmp