Analysis
- max time kernel
190s - max time network
201s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
13/07/2022, 09:21
General
- Target gunzipped.exe
- Size 219KB
- Sample220713-lbbehsfef7
- SHA256 8955fde86ffc02568ef3eedf2b552a9024f1fa5a1af1ab4cd8bb4066b943f9ab
Malware Config
Extracted
-
azorult
-
http://2.56.57.50/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 M3
suricata: ET MALWARE AZORult v3.3 Server Response M3
- suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M15
suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M15
- 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.
- Program crash 1 IoCs
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"1⤵
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- outlook_office_path
- outlook_win_path
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 5642⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4948 -ip 49481⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
mozglue.dll
msvcp140.dll
nss3.dll
vcruntime140.dll
memory/4948-130-0x0000000000998000-0x00000000009A9000-memory.dmp
memory/4948-131-0x00000000008E0000-0x00000000008FD000-memory.dmp
memory/4948-132-0x0000000000400000-0x0000000000650000-memory.dmp
memory/4948-133-0x0000000000998000-0x00000000009A9000-memory.dmp
memory/4948-134-0x0000000000400000-0x0000000000650000-memory.dmp
memory/4948-139-0x0000000000998000-0x00000000009A9000-memory.dmp
memory/4948-140-0x0000000000400000-0x0000000000650000-memory.dmp