Analysis
- max time kernel
142s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
14/08/2024, 01:18
General
- Target a1f60afcf5d8ef739f2d547be2c8ce526c2aaccfaf1983f2e6a955ec6379affd.exe
- Size 1.2MB
- Sample240814-bnxs6stdqg
- SHA256 a1f60afcf5d8ef739f2d547be2c8ce526c2aaccfaf1983f2e6a955ec6379affd
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
- Loads dropped DLL 1 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 2 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
- Browser Information Discovery 1 TTPs
Enumerate browser information.
- 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 2 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\a1f60afcf5d8ef739f2d547be2c8ce526c2aaccfaf1983f2e6a955ec6379affd.exe"C:\Users\Admin\AppData\Local\Temp\a1f60afcf5d8ef739f2d547be2c8ce526c2aaccfaf1983f2e6a955ec6379affd.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\a1f60afcf5d8ef739f2d547be2c8ce526c2aaccfaf1983f2e6a955ec6379affd.exe"C:\Users\Admin\AppData\Local\Temp\a1f60afcf5d8ef739f2d547be2c8ce526c2aaccfaf1983f2e6a955ec6379affd.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
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
System.dll
memory/652-157-0x0000000004800000-0x00000000052C5000-memory.dmp
memory/652-139-0x0000000004800000-0x00000000052C5000-memory.dmp
memory/652-140-0x0000000077551000-0x0000000077671000-memory.dmp
memory/652-141-0x0000000010004000-0x0000000010005000-memory.dmp
memory/652-160-0x0000000004800000-0x00000000052C5000-memory.dmp
memory/3076-143-0x00000000775D8000-0x00000000775D9000-memory.dmp
memory/3076-166-0x00000000016A0000-0x0000000002165000-memory.dmp
memory/3076-159-0x0000000077551000-0x0000000077671000-memory.dmp
memory/3076-158-0x0000000000440000-0x0000000001694000-memory.dmp
memory/3076-142-0x00000000016A0000-0x0000000002165000-memory.dmp
memory/3076-161-0x000000007199E000-0x000000007199F000-memory.dmp
memory/3076-162-0x0000000000440000-0x000000000048A000-memory.dmp
memory/3076-163-0x0000000034D70000-0x0000000035314000-memory.dmp
memory/3076-164-0x0000000034C40000-0x0000000034CDC000-memory.dmp
memory/3076-144-0x00000000775F5000-0x00000000775F6000-memory.dmp
memory/3076-167-0x0000000035830000-0x00000000359F2000-memory.dmp
memory/3076-168-0x0000000035A20000-0x0000000035A70000-memory.dmp
memory/3076-169-0x0000000035AF0000-0x000000003601C000-memory.dmp
memory/3076-171-0x0000000077551000-0x0000000077671000-memory.dmp
memory/3076-173-0x000000007199E000-0x000000007199F000-memory.dmp
memory/3076-179-0x0000000002420000-0x00000000024B2000-memory.dmp
memory/3076-180-0x00000000022F0000-0x00000000022FA000-memory.dmp