Analysis
- max time kernel
153s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
09/05/2022, 03:33
General
- Target SecuriteInfo.com.IL.Trojan.MSILZilla.16973.2867.exe
- Size 522KB
- Sample220509-d37b9sccd7
- SHA256 827c59f47ce022d9a4f2b51678d69f8adc22a960100187d2ed4a8b5bb7cae99c
Malware Config
Extracted
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agenttesla
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Protocol
smtp
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Host
mail.medicare-equipment.com
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Port
587
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Username
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Password
AllTheBest777
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Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 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
- 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 10 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.16973.2867.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.16973.2867.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\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DRRQKFdjzrtc.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DRRQKFdjzrtc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6C66.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.16973.2867.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.16973.2867.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.16973.2867.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.16973.2867.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.16973.2867.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.16973.2867.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmp6C66.tmp
memory/1744-145-0x0000000004B80000-0x0000000004BA2000-memory.dmp
memory/1744-151-0x00000000075A0000-0x0000000007C1A000-memory.dmp
memory/1744-157-0x0000000007280000-0x0000000007288000-memory.dmp
memory/1744-155-0x0000000007190000-0x000000000719E000-memory.dmp
memory/1744-154-0x00000000071E0000-0x0000000007276000-memory.dmp
memory/1744-138-0x0000000004690000-0x00000000046C6000-memory.dmp
memory/1744-153-0x0000000006FD0000-0x0000000006FDA000-memory.dmp
memory/1744-140-0x0000000004D20000-0x0000000005348000-memory.dmp
memory/1744-152-0x0000000006F60000-0x0000000006F7A000-memory.dmp
memory/1744-150-0x0000000006200000-0x000000000621E000-memory.dmp
memory/1744-146-0x0000000005580000-0x00000000055E6000-memory.dmp
memory/1744-149-0x00000000752C0000-0x000000007530C000-memory.dmp
memory/1744-156-0x00000000072A0000-0x00000000072BA000-memory.dmp
memory/1744-148-0x0000000006220000-0x0000000006252000-memory.dmp
memory/1744-147-0x0000000005C70000-0x0000000005C8E000-memory.dmp
memory/2672-133-0x0000000005690000-0x000000000569A000-memory.dmp
memory/2672-130-0x0000000000C50000-0x0000000000CD8000-memory.dmp
memory/2672-131-0x0000000005BD0000-0x0000000006174000-memory.dmp
memory/2672-132-0x00000000056C0000-0x0000000005752000-memory.dmp
memory/2672-135-0x00000000096D0000-0x0000000009736000-memory.dmp
memory/2672-134-0x0000000008F00000-0x0000000008F9C000-memory.dmp
memory/4688-144-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4688-158-0x0000000006660000-0x00000000066B0000-memory.dmp