Analysis
- max time kernel
142s - max time network
160s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
08/05/2022, 06:35
General
- Target 5505edcab56ca7aadd3c6a0a9959d01d17e2a8802799261b6b616a563f97dce4.exe
- Size 853KB
- Sample220508-hcbvwscebl
- SHA256 5505edcab56ca7aadd3c6a0a9959d01d17e2a8802799261b6b616a563f97dce4
Malware Config
Extracted
-
Protocol
smtp
-
Host
smtp.privateemail.com
-
Port
587
-
Username
-
Password
$MKXG2eN$]mXD
Signatures
- 404 Keylogger
Information stealer and keylogger first seen in 2019.
- 404 Keylogger Main Executable 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- 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 2 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 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: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\5505edcab56ca7aadd3c6a0a9959d01d17e2a8802799261b6b616a563f97dce4.exe"C:\Users\Admin\AppData\Local\Temp\5505edcab56ca7aadd3c6a0a9959d01d17e2a8802799261b6b616a563f97dce4.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\JvidILeNJN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp48A2.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\5505edcab56ca7aadd3c6a0a9959d01d17e2a8802799261b6b616a563f97dce4.exe"C:\Users\Admin\AppData\Local\Temp\5505edcab56ca7aadd3c6a0a9959d01d17e2a8802799261b6b616a563f97dce4.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
5505edcab56ca7aadd3c6a0a9959d01d17e2a8802799261b6b616a563f97dce4.exe.log
tmp48A2.tmp
memory/2940-142-0x0000000006EC0000-0x0000000007082000-memory.dmp
memory/2940-141-0x0000000006840000-0x00000000068A6000-memory.dmp
memory/2940-139-0x0000000000400000-0x0000000000422000-memory.dmp
memory/4468-130-0x0000000000490000-0x000000000056C000-memory.dmp
memory/4468-135-0x00000000050E0000-0x0000000005136000-memory.dmp
memory/4468-134-0x0000000004FB0000-0x0000000004FBA000-memory.dmp
memory/4468-133-0x0000000005040000-0x00000000050D2000-memory.dmp
memory/4468-132-0x0000000005550000-0x0000000005AF4000-memory.dmp
memory/4468-131-0x0000000004F00000-0x0000000004F9C000-memory.dmp