Analysis
- max time kernel
141s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
29/03/2022, 18:36
General
- Target 6a697cde97666b7646ef2fb20abc67f667c42bfa24a88c20eec140919c37180f.exe
- Size 820KB
- Sample220329-w9d86sdgfl
- SHA256 6a697cde97666b7646ef2fb20abc67f667c42bfa24a88c20eec140919c37180f
Malware Config
Signatures
- MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
- MassLogger Main Payload 1 IoCs
- Checks computer location settings 2 TTPs 2 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.
- Accesses Microsoft Outlook profiles 1 TTPs 42 IoCs
- 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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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 9 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\6a697cde97666b7646ef2fb20abc67f667c42bfa24a88c20eec140919c37180f.exe"C:\Users\Admin\AppData\Local\Temp\6a697cde97666b7646ef2fb20abc67f667c42bfa24a88c20eec140919c37180f.exe"1⤵
- Checks computer location settings
- 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\EPGlnedSDuYL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3783.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\6a697cde97666b7646ef2fb20abc67f667c42bfa24a88c20eec140919c37180f.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\6a697cde97666b7646ef2fb20abc67f667c42bfa24a88c20eec140919c37180f.exe"{path}"2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\6a697cde97666b7646ef2fb20abc67f667c42bfa24a88c20eec140919c37180f.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
6a697cde97666b7646ef2fb20abc67f667c42bfa24a88c20eec140919c37180f.exe.log
tmp3783.tmp
memory/2928-131-0x00000000053F0000-0x0000000005994000-memory.dmp
memory/2928-132-0x0000000004F20000-0x0000000004FB2000-memory.dmp
memory/2928-133-0x0000000004FC0000-0x0000000004FCA000-memory.dmp
memory/2928-134-0x0000000007950000-0x0000000007E7C000-memory.dmp
memory/2928-135-0x00000000083E0000-0x000000000847C000-memory.dmp
memory/2928-130-0x00000000005E0000-0x00000000006B0000-memory.dmp
memory/3452-146-0x0000000005953000-0x0000000005955000-memory.dmp
memory/3452-142-0x0000000006C40000-0x0000000006CA6000-memory.dmp
memory/3452-140-0x0000000000400000-0x0000000000486000-memory.dmp
memory/3452-144-0x0000000007590000-0x00000000075E0000-memory.dmp
memory/4860-150-0x0000000005F50000-0x0000000005F6E000-memory.dmp
memory/4860-153-0x0000000004B25000-0x0000000004B27000-memory.dmp
memory/4860-147-0x0000000005160000-0x0000000005788000-memory.dmp
memory/4860-148-0x00000000057D0000-0x00000000057F2000-memory.dmp
memory/4860-149-0x0000000005970000-0x00000000059D6000-memory.dmp
memory/4860-151-0x0000000006520000-0x0000000006552000-memory.dmp
memory/4860-152-0x000000006FC70000-0x000000006FCBC000-memory.dmp
memory/4860-154-0x0000000006500000-0x000000000651E000-memory.dmp
memory/4860-145-0x0000000002650000-0x0000000002686000-memory.dmp
memory/4860-155-0x00000000078A0000-0x0000000007F1A000-memory.dmp
memory/4860-156-0x0000000007260000-0x000000000727A000-memory.dmp
memory/4860-157-0x00000000072D0000-0x00000000072DA000-memory.dmp
memory/4860-158-0x00000000074E0000-0x0000000007576000-memory.dmp
memory/4860-159-0x0000000007490000-0x000000000749E000-memory.dmp
memory/4860-160-0x00000000075A0000-0x00000000075BA000-memory.dmp
memory/4860-161-0x0000000007580000-0x0000000007588000-memory.dmp