Analysis
- max time kernel
72s - max time network
127s - platform
windows10_x64 - resource
win10v200722 - submitted
13/10/2020, 17:44
General
- Target discount_offer_pdf.exe
- Size 1.2MB
- Sample201013-vbsxbkehea
- SHA256 aed72cebee92e2652dddfbec6aa2b2728183b03c62835a2a860480963cae856f
Malware Config
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- MassLogger Main Payload 2 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- 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 SetThreadContext 1 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\discount_offer_pdf.exe"C:\Users\Admin\AppData\Local\Temp\discount_offer_pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\discount_offer_pdf.exe"C:\Users\Admin\AppData\Local\Temp\discount_offer_pdf.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\discount_offer_pdf.exe"C:\Users\Admin\AppData\Local\Temp\discount_offer_pdf.exe"2⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3824-5-0x00000000058F0000-0x00000000058F1000-memory.dmp
memory/3824-9-0x000000000A8A0000-0x000000000A968000-memory.dmp
memory/3824-4-0x0000000005D50000-0x0000000005D51000-memory.dmp
memory/3824-0-0x0000000073A60000-0x000000007414E000-memory.dmp
memory/3824-6-0x00000000057F0000-0x00000000057F1000-memory.dmp
memory/3824-7-0x0000000005A50000-0x0000000005A51000-memory.dmp
memory/3824-3-0x0000000005740000-0x0000000005741000-memory.dmp
memory/3824-1-0x0000000000E20000-0x0000000000E21000-memory.dmp
memory/3824-8-0x0000000008250000-0x000000000A24F000-memory.dmp
memory/3824-10-0x000000000A9C0000-0x000000000AA6E000-memory.dmp
memory/3864-11-0x0000000000400000-0x0000000000486000-memory.dmp
memory/3864-14-0x0000000073A60000-0x000000007414E000-memory.dmp
memory/3864-19-0x0000000006230000-0x0000000006231000-memory.dmp
memory/3864-21-0x0000000006BC0000-0x0000000006BC1000-memory.dmp