Analysis
- max time kernel
90s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
10/11/2022, 06:39
General
- Target SecuriteInfo.com.IL.Trojan.MSILZilla.23442.27214.26234.exe
- Size 26KB
- Sample221110-hel4mshdak
- SHA256 1b79570c79f25ae18f75eef6156511ee39cf27c00382c9d2d0e359febc4aefad
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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
- Adds Run key to start application 2 TTPs 2 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- 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.
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 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\SecuriteInfo.com.IL.Trojan.MSILZilla.23442.27214.26234.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.23442.27214.26234.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.23442.27214.26234.exeC:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.23442.27214.26234.exe2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- 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
SecuriteInfo.com.IL.Trojan.MSILZilla.23442.27214.26234.exe.log
memory/2168-144-0x0000000006640000-0x000000000665A000-memory.dmp
memory/2168-142-0x0000000006140000-0x000000000615E000-memory.dmp
memory/2168-141-0x0000000005AE0000-0x0000000005B46000-memory.dmp
memory/2168-143-0x00000000079B0000-0x000000000802A000-memory.dmp
memory/2168-138-0x0000000002830000-0x0000000002866000-memory.dmp
memory/2168-139-0x00000000052A0000-0x00000000058C8000-memory.dmp
memory/2168-140-0x0000000005940000-0x00000000059A6000-memory.dmp
memory/4048-146-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4048-148-0x0000000005070000-0x000000000510C000-memory.dmp
memory/4048-149-0x00000000067F0000-0x0000000006840000-memory.dmp
memory/5016-134-0x0000000005600000-0x0000000005692000-memory.dmp
memory/5016-136-0x0000000006DB0000-0x0000000006DD2000-memory.dmp
memory/5016-135-0x0000000005510000-0x000000000551A000-memory.dmp
memory/5016-132-0x0000000000C30000-0x0000000000C3C000-memory.dmp
memory/5016-133-0x0000000005BB0000-0x0000000006154000-memory.dmp