Analysis
- max time kernel
147s - max time network
148s - platform
windows11-21h2_x64 - resource
win11-20250410-en - resource tags
- submitted
23/04/2025, 07:01
General
- Target Purchase Order.exe
- Size 756KB
- Sample250423-hs9f4azyf1
- SHA256 5f25c8dcfee56dc11e03d1001f7c46e5adc9103651771cf82875dbd3c95c6775
Malware Config
Extracted
-
masslogger
-
https://api.telegram.org/bot8089454501:AAEUAwGJnwKnjnWzV-_V3aqpvU28E05RJz4/sendMessage?chat_id=7886581547
-
exfiltration_mode
#TGEnabled
-
expire_time_date
2025-04-27
-
ssl_slate
False
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- Masslogger family
- 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
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- 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 use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
Purchase Order.exe.log
memory/4172-11-0x0000000000400000-0x000000000041E000-memory.dmp
memory/4172-19-0x0000000074990000-0x0000000075141000-memory.dmp
memory/4172-18-0x0000000006800000-0x00000000069C2000-memory.dmp
memory/4172-17-0x00000000064E0000-0x0000000006530000-memory.dmp
memory/4172-16-0x0000000074990000-0x0000000075141000-memory.dmp
memory/4172-14-0x0000000074990000-0x0000000075141000-memory.dmp
memory/4736-4-0x0000000074990000-0x0000000075141000-memory.dmp
memory/4736-8-0x000000007499E000-0x000000007499F000-memory.dmp
memory/4736-9-0x0000000074990000-0x0000000075141000-memory.dmp
memory/4736-10-0x0000000004CA0000-0x0000000004D02000-memory.dmp
memory/4736-7-0x0000000006E80000-0x0000000006E9A000-memory.dmp
memory/4736-6-0x00000000055C0000-0x000000000565C000-memory.dmp
memory/4736-5-0x0000000005260000-0x000000000526A000-memory.dmp
memory/4736-15-0x0000000074990000-0x0000000075141000-memory.dmp
memory/4736-0-0x000000007499E000-0x000000007499F000-memory.dmp
memory/4736-3-0x0000000005300000-0x0000000005392000-memory.dmp
memory/4736-2-0x0000000005810000-0x0000000005DB6000-memory.dmp
memory/4736-1-0x00000000006F0000-0x00000000007B2000-memory.dmp