Analysis
- max time kernel
151s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
30/03/2022, 17:53
General
- Target kendrickzx.exe
- Size 573KB
- Sample220330-wf94rafbf5
- SHA256 1fa0ac0a019a301a4e8e20ad7e27b89d86540318d84ed530f1ee8a695b9fe293
Malware Config
Extracted
-
azorult
-
http://62.197.136.186/kendrick/index.php
Signatures
- Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 5 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
- 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.
- Suspicious use of SetThreadContext 1 IoCs
- 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 15 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\kendrickzx.exe"C:\Users\Admin\AppData\Local\Temp\kendrickzx.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kendrickzx.exe"C:\Users\Admin\AppData\Local\Temp\kendrickzx.exe"2⤵
- Checks computer location settings
- 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
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c C:\Windows\system32\timeout.exe 3 & del "kendrickzx.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
mozglue.dll
msvcp140.dll
nss3.dll
vcruntime140.dll
vcruntime140.dll
memory/1288-134-0x0000000008B10000-0x0000000008BAC000-memory.dmp
memory/1288-135-0x0000000008EC0000-0x0000000008F26000-memory.dmp
memory/1288-130-0x00000000006C0000-0x0000000000756000-memory.dmp
memory/1288-133-0x00000000050F0000-0x00000000050FA000-memory.dmp
memory/1288-132-0x0000000005170000-0x0000000005202000-memory.dmp
memory/1288-131-0x0000000005720000-0x0000000005CC4000-memory.dmp
memory/2388-137-0x0000000000400000-0x0000000000420000-memory.dmp
memory/2388-139-0x0000000000400000-0x0000000000420000-memory.dmp