Analysis
- max time kernel
132s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
15/04/2022, 08:56
General
- Target 76c77083a255a33c0f87189398ea25c36d313b1f79ad85304986312a724b58ba.exe
- Size 661KB
- Sample220415-kv5l2aedgl
- SHA256 76c77083a255a33c0f87189398ea25c36d313b1f79ad85304986312a724b58ba
Malware Config
Extracted
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Protocol
smtp
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Host
bh-58.webhostbox.net
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Port
587
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Username
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Password
7213575aceACE@#
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.
- Delays execution with timeout.exe 1 IoCs
- NTFS ADS 1 IoCs
- 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 29 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\76c77083a255a33c0f87189398ea25c36d313b1f79ad85304986312a724b58ba.exe"C:\Users\Admin\AppData\Local\Temp\76c77083a255a33c0f87189398ea25c36d313b1f79ad85304986312a724b58ba.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:\Users\Admin\AppData\Local\Temp\76c77083a255a33c0f87189398ea25c36d313b1f79ad85304986312a724b58ba.exe"C:/Users/Admin/AppData/Local/Temp/76c77083a255a33c0f87189398ea25c36d313b1f79ad85304986312a724b58ba.exe"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\76c77083a255a33c0f87189398ea25c36d313b1f79ad85304986312a724b58ba.exe'3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c copy "C:/Users/Admin/AppData/Local/Temp/76c77083a255a33c0f87189398ea25c36d313b1f79ad85304986312a724b58ba.exe" "%temp%\FolderN\name.exe" /Y2⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "%temp%\FolderN\name.exe.lnk" /f2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\reg.exereg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe.lnk" /f3⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > %temp%\FolderN\name.exe:Zone.Identifier2⤵
- NTFS ADS
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe.bat2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /t 3003⤵
- Delays execution with timeout.exe
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
name.exe
name.exe.bat
memory/2564-131-0x0000000005800000-0x000000000589C000-memory.dmp
memory/2564-130-0x0000000000E20000-0x0000000000ECC000-memory.dmp
memory/3248-134-0x0000000000500000-0x0000000000586000-memory.dmp
memory/3248-147-0x00000000066C0000-0x0000000006710000-memory.dmp
memory/3248-148-0x0000000006690000-0x000000000669A000-memory.dmp
memory/3248-149-0x0000000004A23000-0x0000000004A25000-memory.dmp
memory/3248-144-0x00000000054C0000-0x0000000005A64000-memory.dmp
memory/3248-145-0x0000000005D60000-0x0000000005DC6000-memory.dmp
memory/3248-143-0x0000000004E70000-0x0000000004F02000-memory.dmp
memory/4084-155-0x00000000067B0000-0x00000000067E2000-memory.dmp
memory/4084-156-0x000000006F500000-0x000000006F54C000-memory.dmp
memory/4084-165-0x0000000007820000-0x0000000007828000-memory.dmp
memory/4084-150-0x0000000004C10000-0x0000000004C46000-memory.dmp
memory/4084-151-0x00000000053D0000-0x00000000059F8000-memory.dmp
memory/4084-152-0x0000000005350000-0x0000000005372000-memory.dmp
memory/4084-153-0x0000000005A70000-0x0000000005AD6000-memory.dmp
memory/4084-154-0x00000000061F0000-0x000000000620E000-memory.dmp
memory/4084-164-0x0000000007840000-0x000000000785A000-memory.dmp
memory/4084-157-0x0000000006790000-0x00000000067AE000-memory.dmp
memory/4084-158-0x0000000004D95000-0x0000000004D97000-memory.dmp
memory/4084-159-0x0000000007B40000-0x00000000081BA000-memory.dmp
memory/4084-160-0x00000000074F0000-0x000000000750A000-memory.dmp
memory/4084-161-0x0000000007560000-0x000000000756A000-memory.dmp
memory/4084-162-0x0000000007750000-0x00000000077E6000-memory.dmp
memory/4084-163-0x0000000007730000-0x000000000773E000-memory.dmp