Analysis
- max time kernel
51s - max time network
113s - platform
windows10_x64 - resource
win10 - submitted
12/10/2020, 19:25
General
- Target file.exe
- Size 771KB
- Sample201012-w6jfbd8p4x
- SHA256 72cdab689d7d8015c3c033cb824a95148664662ad100735ca09bdd0da5cf139d
Malware Config
Extracted
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azorult
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http://185.239.242.174/owa/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.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- 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 8 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.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\file.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\file.exe"{path}"2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c C:\Windows\system32\timeout.exe 3 & del "file.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/2140-14-0x0000000000400000-0x0000000000420000-memory.dmp
memory/2140-12-0x0000000000400000-0x0000000000420000-memory.dmp
memory/2892-6-0x0000000005F20000-0x0000000005F21000-memory.dmp
memory/2892-11-0x000000000B8A0000-0x000000000B901000-memory.dmp
memory/2892-10-0x0000000007FF0000-0x000000000805F000-memory.dmp
memory/2892-9-0x0000000005990000-0x0000000005994000-memory.dmp
memory/2892-8-0x0000000006270000-0x0000000006271000-memory.dmp
memory/2892-7-0x00000000058E0000-0x00000000058E1000-memory.dmp
memory/2892-0-0x0000000072EF0000-0x00000000735DE000-memory.dmp
memory/2892-5-0x00000000055D0000-0x00000000055D1000-memory.dmp
memory/2892-4-0x0000000005440000-0x0000000005441000-memory.dmp
memory/2892-3-0x0000000005A20000-0x0000000005A21000-memory.dmp
memory/2892-1-0x0000000000B40000-0x0000000000B41000-memory.dmp