Analysis
- max time kernel
117s - max time network
119s - platform
windows10-2004_x64 - resource
win10v2004-20250314-en - resource tags
- submitted
28/04/2025, 11:14
General
- Target DHL Express_AWB44633179800-708439321-pdf.exe
- Size 760KB
- Sample250428-nb2mtattew
- SHA256 4f111dd6b9cea83f8647ff3293c8df2962b052faacbee349867bed985a4703b9
Malware Config
Extracted
-
masslogger
-
https://api.telegram.org/bot8045982473:AAFEYwreZzjlMKB9VthIaqzI5KEItIDMgNM/sendMessage?chat_id=7731003424
-
exfiltration_mode
#TGEnabled
-
expire_time_date
2025-06-05
-
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\DHL Express_AWB44633179800-708439321-pdf.exe"C:\Users\Admin\AppData\Local\Temp\DHL Express_AWB44633179800-708439321-pdf.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\DHL Express_AWB44633179800-708439321-pdf.exe"C:\Users\Admin\AppData\Local\Temp\DHL Express_AWB44633179800-708439321-pdf.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
memory/3792-8-0x0000000074690000-0x0000000074E40000-memory.dmp
memory/3792-10-0x0000000008FE0000-0x000000000907C000-memory.dmp
memory/3792-2-0x0000000005990000-0x0000000005F34000-memory.dmp
memory/3792-3-0x0000000005330000-0x00000000053C2000-memory.dmp
memory/3792-5-0x0000000074690000-0x0000000074E40000-memory.dmp
memory/3792-4-0x0000000005320000-0x000000000532A000-memory.dmp
memory/3792-6-0x00000000055A0000-0x00000000055BA000-memory.dmp
memory/3792-7-0x000000007469E000-0x000000007469F000-memory.dmp
memory/3792-1-0x00000000009F0000-0x0000000000AB4000-memory.dmp
memory/3792-0-0x000000007469E000-0x000000007469F000-memory.dmp
memory/3792-9-0x0000000004DB0000-0x0000000004E12000-memory.dmp
memory/3792-14-0x0000000074690000-0x0000000074E40000-memory.dmp
memory/5372-13-0x0000000074690000-0x0000000074E40000-memory.dmp
memory/5372-11-0x0000000000400000-0x000000000041E000-memory.dmp
memory/5372-15-0x0000000074690000-0x0000000074E40000-memory.dmp
memory/5372-16-0x00000000069D0000-0x0000000006A20000-memory.dmp
memory/5372-17-0x0000000006CF0000-0x0000000006EB2000-memory.dmp
memory/5372-18-0x0000000074690000-0x0000000074E40000-memory.dmp