Analysis
- max time kernel
117s - max time network
118s - platform
windows7_x64 - resource
win7-20231129-en - resource tags
- submitted
12/01/2024, 19:56
General
- Target DOCS-1600017889PO400121-2024.exe
- Size 439KB
- Sample240112-ynnltsfbb4
- SHA256 4e77b03fc9937ac68121e3121cf062ba0994ba4aa06d2ccde468ce2a91cda61f
Malware Config
Signatures
- Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Deletes itself 1 IoCs
- Loads dropped DLL 17 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 NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 1 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\DOCS-1600017889PO400121-2024.exe"C:\Users\Admin\AppData\Local\Temp\DOCS-1600017889PO400121-2024.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\DOCS-1600017889PO400121-2024.exe"C:\Users\Admin\AppData\Local\Temp\DOCS-1600017889PO400121-2024.exe"2⤵
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- 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 "DOCS-1600017889PO400121-2024.exe"3⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exeC:\Windows\system32\timeout.exe 34⤵
- Delays execution with timeout.exe
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
mozglue.dll
nss3.dll
System.dll
memory/2076-26-0x0000000072D70000-0x0000000073DD2000-memory.dmp
memory/2076-22-0x0000000000590000-0x0000000001A1D000-memory.dmp
memory/2076-23-0x00000000777F0000-0x0000000077999000-memory.dmp
memory/2076-24-0x0000000072D70000-0x0000000073DD2000-memory.dmp
memory/2076-25-0x0000000000590000-0x0000000001A1D000-memory.dmp
memory/2076-159-0x0000000072D70000-0x0000000073DD2000-memory.dmp
memory/2076-158-0x0000000000590000-0x0000000001A1D000-memory.dmp
memory/2196-21-0x0000000074EB0000-0x0000000074EB7000-memory.dmp
memory/2196-19-0x00000000777F0000-0x0000000077999000-memory.dmp
memory/2196-20-0x00000000779E0000-0x0000000077AB6000-memory.dmp
memory/2196-18-0x00000000041E0000-0x000000000566D000-memory.dmp