Analysis
- max time kernel
143s - max time network
70s - platform
windows10_x64 - resource
win10v200722 - submitted
12/08/2020, 15:23
General
- Target TPN Letter of demand.pdf.exe
- Size 594KB
- Sample200812-4hnbcdxd6e
- SHA256 dd19bace27d42e2a34d4ec3a92671ad7c615a2eab04cf66bf4682fd604eaca11
Malware Config
Extracted
-
azorult
-
http://3.104.54.134/oscsa/index.php
Signatures
- Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
- 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 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.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- JavaScript code in executable 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\TPN Letter of demand.pdf.exe"C:\Users\Admin\AppData\Local\Temp\TPN Letter of demand.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\TPN Letter of demand.pdf.exe"{path}"2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c C:\Windows\system32\timeout.exe 3 & del "TPN Letter of demand.pdf.exe"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exeC:\Windows\system32\timeout.exe 34⤵
- Delays execution with timeout.exe
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/496-5-0x0000000005870000-0x0000000005871000-memory.dmp
memory/496-7-0x0000000007EA0000-0x0000000007EDC000-memory.dmp
memory/496-8-0x0000000007FE0000-0x0000000007FFD000-memory.dmp
memory/496-9-0x00000000083F0000-0x00000000083F1000-memory.dmp
memory/496-6-0x0000000005D60000-0x0000000005D68000-memory.dmp
memory/496-0-0x0000000073700000-0x0000000073DEE000-memory.dmp
memory/496-4-0x00000000057C0000-0x00000000057C1000-memory.dmp
memory/496-3-0x0000000005DD0000-0x0000000005DD1000-memory.dmp
memory/496-1-0x0000000000DC0000-0x0000000000DC1000-memory.dmp
memory/3956-12-0x0000000000400000-0x0000000000420000-memory.dmp
memory/3956-14-0x0000000000400000-0x0000000000420000-memory.dmp