Analysis
- max time kernel
146s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
05/12/2024, 08:32
General
- Target REQUESTFORQUOATIONANDPRICES0106-24_pdf.exe
- Size 1.1MB
- Sample241205-kfknbasnak
- SHA256 6e64f28c7d7dc9f4f9590d3230de7a22dc5b982999c20dd5275cd0022405e131
Malware Config
Signatures
- Guloader family
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Disables Task Manager via registry modification
- Loads dropped DLL 2 IoCs
- 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 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\REQUESTFORQUOATIONANDPRICES0106-24_pdf.exe"C:\Users\Admin\AppData\Local\Temp\REQUESTFORQUOATIONANDPRICES0106-24_pdf.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\REQUESTFORQUOATIONANDPRICES0106-24_pdf.exe"C:\Users\Admin\AppData\Local\Temp\REQUESTFORQUOATIONANDPRICES0106-24_pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/2184-15-0x0000000003400000-0x0000000004695000-memory.dmp
memory/2184-16-0x0000000076EC1000-0x0000000076FE1000-memory.dmp
memory/2184-17-0x0000000010004000-0x0000000010005000-memory.dmp
memory/2184-18-0x0000000003400000-0x0000000004695000-memory.dmp
memory/2836-19-0x0000000001720000-0x00000000029B5000-memory.dmp
memory/2836-20-0x0000000076F48000-0x0000000076F49000-memory.dmp
memory/2836-21-0x0000000076F65000-0x0000000076F66000-memory.dmp
memory/2836-34-0x00000000004C0000-0x0000000001714000-memory.dmp
memory/2836-35-0x0000000001720000-0x00000000029B5000-memory.dmp
memory/2836-36-0x00000000004C0000-0x00000000004DE000-memory.dmp
memory/2836-37-0x00000000356A0000-0x0000000035C44000-memory.dmp
memory/2836-38-0x0000000035C50000-0x0000000035CEC000-memory.dmp
memory/2836-39-0x0000000036070000-0x0000000036102000-memory.dmp
memory/2836-40-0x0000000036110000-0x0000000036160000-memory.dmp
memory/2836-42-0x0000000076EC1000-0x0000000076FE1000-memory.dmp
memory/2836-43-0x0000000036290000-0x0000000036452000-memory.dmp
memory/2836-44-0x0000000036520000-0x000000003652A000-memory.dmp