Analysis
- max time kernel
82s - max time network
134s - platform
windows7_x64 - resource
win7v20201028 - submitted
13/12/2020, 08:33
General
- Target vygtHoQaI1KaBVp.exe
- Size 980KB
- Sample201213-7eceydnxn2
- SHA256 e66fe8dc103a47069c3a56658a72e62e4c17a3d1ed1fbf76185ebd246df7823f
Malware Config
Extracted
-
Protocol
smtp
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Host
smtp.gmail.com
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Port
587
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Username
-
Password
ayocj@2021
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- MassLogger Main Payload 4 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
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 10 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\vygtHoQaI1KaBVp.exe"C:\Users\Admin\AppData\Local\Temp\vygtHoQaI1KaBVp.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yUGVefG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp696D.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\vygtHoQaI1KaBVp.exe"{path}"2⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\vygtHoQaI1KaBVp.exe'3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/576-30-0x0000000005670000-0x00000000056FD000-memory.dmp
memory/576-23-0x0000000074110000-0x00000000747FE000-memory.dmp
memory/576-22-0x0000000000400000-0x0000000000486000-memory.dmp
memory/576-21-0x0000000000400000-0x0000000000486000-memory.dmp
memory/576-19-0x0000000000400000-0x0000000000486000-memory.dmp
memory/1328-35-0x0000000005650000-0x0000000005651000-memory.dmp
memory/1328-64-0x0000000006510000-0x0000000006511000-memory.dmp
memory/1328-63-0x0000000006500000-0x0000000006501000-memory.dmp
memory/1328-49-0x0000000005610000-0x0000000005611000-memory.dmp
memory/1328-48-0x0000000006280000-0x0000000006281000-memory.dmp
memory/1328-41-0x0000000006120000-0x0000000006121000-memory.dmp
memory/1328-27-0x0000000074110000-0x00000000747FE000-memory.dmp
memory/1328-28-0x0000000002130000-0x0000000002131000-memory.dmp
memory/1328-29-0x0000000004980000-0x0000000004981000-memory.dmp
memory/1328-40-0x00000000060D0000-0x00000000060D1000-memory.dmp
memory/1328-31-0x0000000002620000-0x0000000002621000-memory.dmp
memory/1328-32-0x0000000004750000-0x0000000004751000-memory.dmp
memory/1684-14-0x0000000004D60000-0x0000000004E1B000-memory.dmp
memory/1684-3-0x0000000000E60000-0x0000000000E61000-memory.dmp
memory/1684-2-0x0000000074110000-0x00000000747FE000-memory.dmp
memory/1684-5-0x0000000004AE0000-0x0000000004BC3000-memory.dmp
memory/1684-6-0x0000000000380000-0x0000000000391000-memory.dmp
memory/1684-11-0x0000000000380000-0x0000000000391000-memory.dmp
memory/1684-13-0x0000000000410000-0x000000000041E000-memory.dmp