Analysis
- max time kernel
150s - max time network
141s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
09/05/2022, 03:33
General
- Target SecuriteInfo.com.IL.Trojan.MSILZilla.16973.6237.exe
- Size 507KB
- Sample220509-d37m2afbcp
- SHA256 8fe6d743d2882ef8f20c4b54a16b7086ca29cd852b376d18bd5a49fd445f8a2d
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 8 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 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.16973.6237.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.16973.6237.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\cyQrWOtbqUcNN.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\cyQrWOtbqUcNN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1B77.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.16973.6237.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.16973.6237.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.16973.6237.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.16973.6237.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
Loading Replay Monitor...
Downloads
tmp1B77.tmp
memory/2404-157-0x0000000006360000-0x00000000063B0000-memory.dmp
memory/2404-143-0x0000000000400000-0x000000000043C000-memory.dmp
memory/2884-131-0x0000000005D30000-0x00000000062D4000-memory.dmp
memory/2884-132-0x0000000005780000-0x0000000005812000-memory.dmp
memory/2884-133-0x0000000005740000-0x000000000574A000-memory.dmp
memory/2884-134-0x0000000008EE0000-0x0000000008F7C000-memory.dmp
memory/2884-135-0x0000000009410000-0x0000000009476000-memory.dmp
memory/2884-130-0x0000000000D20000-0x0000000000DA4000-memory.dmp
memory/3792-144-0x0000000005810000-0x0000000005832000-memory.dmp
memory/3792-149-0x0000000006D70000-0x0000000006D8E000-memory.dmp
memory/3792-138-0x0000000005220000-0x0000000005256000-memory.dmp
memory/3792-145-0x00000000060E0000-0x0000000006146000-memory.dmp
memory/3792-146-0x00000000067D0000-0x00000000067EE000-memory.dmp
memory/3792-147-0x0000000007980000-0x00000000079B2000-memory.dmp
memory/3792-148-0x0000000070C50000-0x0000000070C9C000-memory.dmp
memory/3792-140-0x0000000005900000-0x0000000005F28000-memory.dmp
memory/3792-150-0x0000000008120000-0x000000000879A000-memory.dmp
memory/3792-151-0x0000000007AD0000-0x0000000007AEA000-memory.dmp
memory/3792-152-0x0000000007B40000-0x0000000007B4A000-memory.dmp
memory/3792-153-0x0000000007D50000-0x0000000007DE6000-memory.dmp
memory/3792-154-0x0000000007D00000-0x0000000007D0E000-memory.dmp
memory/3792-155-0x0000000007E10000-0x0000000007E2A000-memory.dmp
memory/3792-156-0x0000000007DF0000-0x0000000007DF8000-memory.dmp