Analysis
- max time kernel
143s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
15/01/2023, 18:37
General
- Target SecuriteInfo.com.W32.MSIL_Kryptik.GHM.gen.Eldorado.18546.28521.exe
- Size 732KB
- Sample230115-w9gdjaad49
- SHA256 de7da8b54474a61449ac0c8a9feebc5708d73e8cf14bd2b74125d20cdf67bb84
Malware Config
Signatures
- 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 2 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 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.GHM.gen.Eldorado.18546.28521.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.GHM.gen.Eldorado.18546.28521.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pchGtXdUZoBVwr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6A81.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.GHM.gen.Eldorado.18546.28521.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmp6A81.tmp
memory/3596-140-0x0000000000400000-0x0000000000430000-memory.dmp
memory/3596-141-0x0000000005460000-0x00000000054C6000-memory.dmp
memory/3596-142-0x0000000006FE0000-0x0000000007030000-memory.dmp
memory/3596-143-0x0000000007200000-0x00000000073C2000-memory.dmp
memory/4324-132-0x0000000000980000-0x0000000000A3E000-memory.dmp
memory/4324-133-0x0000000005A20000-0x0000000005FC4000-memory.dmp
memory/4324-134-0x00000000053C0000-0x0000000005452000-memory.dmp
memory/4324-135-0x0000000005510000-0x00000000055AC000-memory.dmp
memory/4324-136-0x0000000005470000-0x000000000547A000-memory.dmp