Analysis
- max time kernel
66s - max time network
34s - platform
windows10_x64 - resource
win10 - submitted
18/08/2020, 19:44
General
- Target venyrme.exe
- Size 622KB
- Sample200818-n9k54gpkde
- SHA256 c22ee6c1ffbbc94db718846d0d68da507573c24eb66ab1122a1d2a177fa42e2f
Malware Config
Extracted
-
azorult
-
http://rewrty-71.tk/temp/set/index.php
Signatures
- Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 9 IoCs
- Obfuscated with Agile.Net obfuscator 2 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
- 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 2 IoCs
- Suspicious use of SetThreadContext 2 IoCs
- Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 9 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\venyrme.exe"C:\Users\Admin\AppData\Local\Temp\venyrme.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/3212-11-0x0000000000400000-0x0000000000420000-memory.dmp
memory/3212-8-0x0000000000400000-0x0000000000420000-memory.dmp
memory/3536-0-0x0000000073150000-0x000000007383E000-memory.dmp
memory/3536-7-0x0000000006340000-0x0000000006343000-memory.dmp
memory/3536-6-0x0000000006150000-0x0000000006151000-memory.dmp
memory/3536-5-0x0000000006570000-0x0000000006571000-memory.dmp
memory/3536-3-0x0000000003140000-0x0000000003161000-memory.dmp
memory/3536-1-0x0000000000E20000-0x0000000000E21000-memory.dmp