Analysis
- max time kernel
102s - max time network
134s - platform
windows10-2004_x64 - resource
win10v2004-20250502-en - resource tags
- submitted
09/05/2025, 13:29
General
- Target 781bbdbac8346f7e9d5b1530dfa2b8661d23b18a642bafb358e868c989760abc.exe
- Size 572KB
- Sample250509-qrfrdsep4y
- SHA256 781bbdbac8346f7e9d5b1530dfa2b8661d23b18a642bafb358e868c989760abc
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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\781bbdbac8346f7e9d5b1530dfa2b8661d23b18a642bafb358e868c989760abc.exe"C:\Users\Admin\AppData\Local\Temp\781bbdbac8346f7e9d5b1530dfa2b8661d23b18a642bafb358e868c989760abc.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\781bbdbac8346f7e9d5b1530dfa2b8661d23b18a642bafb358e868c989760abc.exe"C:\Users\Admin\AppData\Local\Temp\781bbdbac8346f7e9d5b1530dfa2b8661d23b18a642bafb358e868c989760abc.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\781bbdbac8346f7e9d5b1530dfa2b8661d23b18a642bafb358e868c989760abc.exe"C:\Users\Admin\AppData\Local\Temp\781bbdbac8346f7e9d5b1530dfa2b8661d23b18a642bafb358e868c989760abc.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
781bbdbac8346f7e9d5b1530dfa2b8661d23b18a642bafb358e868c989760abc.exe.log
memory/544-10-0x000000007530E000-0x000000007530F000-memory.dmp
memory/544-2-0x0000000005260000-0x0000000005804000-memory.dmp
memory/544-3-0x0000000004D50000-0x0000000004DE2000-memory.dmp
memory/544-4-0x0000000004DF0000-0x0000000005144000-memory.dmp
memory/544-5-0x0000000005810000-0x000000000581A000-memory.dmp
memory/544-6-0x0000000075300000-0x0000000075AB0000-memory.dmp
memory/544-7-0x00000000062B0000-0x0000000006336000-memory.dmp
memory/544-8-0x00000000063E0000-0x000000000647C000-memory.dmp
memory/544-0-0x000000007530E000-0x000000007530F000-memory.dmp
memory/544-9-0x0000000006340000-0x000000000635A000-memory.dmp
memory/544-17-0x0000000075300000-0x0000000075AB0000-memory.dmp
memory/544-12-0x00000000026A0000-0x0000000002702000-memory.dmp
memory/544-11-0x0000000075300000-0x0000000075AB0000-memory.dmp
memory/544-1-0x0000000000270000-0x0000000000304000-memory.dmp
memory/4872-16-0x0000000075300000-0x0000000075AB0000-memory.dmp
memory/4872-13-0x0000000000400000-0x000000000041E000-memory.dmp
memory/4872-18-0x0000000075300000-0x0000000075AB0000-memory.dmp
memory/4872-19-0x0000000006980000-0x00000000069D0000-memory.dmp
memory/4872-20-0x0000000075300000-0x0000000075AB0000-memory.dmp
memory/4872-21-0x0000000006CA0000-0x0000000006E62000-memory.dmp