Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20231222-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.
- 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 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).
- Program crash 1 IoCs
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 6 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
- outlook_office_path
- outlook_win_path
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1936 -s 18483⤵
- Program crash
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-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1936 -ip 19361⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
mozglue.dll
msvcp140.dll
nss3.dll
vcruntime140.dll
System.dll
memory/1880-17-0x0000000004B50000-0x0000000005FDD000-memory.dmp
memory/1880-18-0x0000000077171000-0x0000000077291000-memory.dmp
memory/1880-19-0x0000000073DC0000-0x0000000073DC7000-memory.dmp
memory/1880-22-0x0000000004B50000-0x0000000005FDD000-memory.dmp
memory/1936-26-0x0000000000060000-0x0000000000087000-memory.dmp
memory/1936-25-0x0000000000590000-0x0000000001A1D000-memory.dmp
memory/1936-27-0x0000000072B60000-0x0000000073DB4000-memory.dmp
memory/1936-28-0x0000000000590000-0x0000000001A1D000-memory.dmp
memory/1936-29-0x0000000072B60000-0x0000000073DB4000-memory.dmp
memory/1936-30-0x0000000077171000-0x0000000077291000-memory.dmp
memory/1936-31-0x0000000072B60000-0x0000000073DB4000-memory.dmp
memory/1936-24-0x0000000072B60000-0x0000000073DB4000-memory.dmp
memory/1936-23-0x0000000077215000-0x0000000077216000-memory.dmp
memory/1936-21-0x00000000771F8000-0x00000000771F9000-memory.dmp
memory/1936-20-0x0000000000590000-0x0000000001A1D000-memory.dmp
memory/1936-92-0x0000000072B60000-0x0000000073DB4000-memory.dmp