Analysis
- max time kernel
51s - max time network
53s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
20/06/2024, 14:07
General
- Target chem-03240.pdf.exe
- Size 975KB
- Sample240620-rey8mswarp
- SHA256 c5e436daea517264f270beba101c5d2ae9d9b25a72c8c4ed049239ecddb7fcc8
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
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Host
proglass.com.sg
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Port
587
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Username
-
Password
NiconPay$
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Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- 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.
- 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).
- Scheduled Task/Job: Scheduled Task 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 4 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\chem-03240.pdf.exe"C:\Users\Admin\AppData\Local\Temp\chem-03240.pdf.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\Local\Temp\chem-03240.pdf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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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\jBIBnuQ.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jBIBnuQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp701F.tmp"2⤵
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Local\Temp\chem-03240.pdf.exe"C:\Users\Admin\AppData\Local\Temp\chem-03240.pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_wwnnlwv2.52w.ps1
tmp701F.tmp
memory/1216-88-0x0000000006AE0000-0x0000000006B30000-memory.dmp
memory/1216-38-0x0000000000400000-0x0000000000442000-memory.dmp
memory/3284-63-0x00000000080C0000-0x000000000873A000-memory.dmp
memory/3284-37-0x0000000006800000-0x000000000684C000-memory.dmp
memory/3284-87-0x0000000074860000-0x0000000075010000-memory.dmp
memory/3284-77-0x0000000007C80000-0x0000000007C91000-memory.dmp
memory/3284-76-0x0000000007D00000-0x0000000007D96000-memory.dmp
memory/3284-65-0x0000000007AF0000-0x0000000007AFA000-memory.dmp
memory/3284-64-0x0000000007A80000-0x0000000007A9A000-memory.dmp
memory/3284-17-0x0000000005180000-0x00000000051B6000-memory.dmp
memory/3284-18-0x0000000074860000-0x0000000075010000-memory.dmp
memory/3284-19-0x0000000005820000-0x0000000005E48000-memory.dmp
memory/3284-20-0x0000000074860000-0x0000000075010000-memory.dmp
memory/3284-21-0x0000000074860000-0x0000000075010000-memory.dmp
memory/3284-22-0x0000000005E50000-0x0000000005E72000-memory.dmp
memory/3284-24-0x0000000006120000-0x0000000006186000-memory.dmp
memory/3284-23-0x0000000006040000-0x00000000060A6000-memory.dmp
memory/3284-61-0x0000000006D30000-0x0000000006D4E000-memory.dmp
memory/3284-34-0x0000000006190000-0x00000000064E4000-memory.dmp
memory/3284-62-0x0000000007750000-0x00000000077F3000-memory.dmp
memory/3284-36-0x0000000006750000-0x000000000676E000-memory.dmp
memory/3284-51-0x000000006F740000-0x000000006F78C000-memory.dmp
memory/3284-50-0x0000000007710000-0x0000000007742000-memory.dmp
memory/4208-79-0x0000000007890000-0x00000000078A4000-memory.dmp
memory/4208-66-0x000000006F740000-0x000000006F78C000-memory.dmp
memory/4208-81-0x0000000007970000-0x0000000007978000-memory.dmp
memory/4208-80-0x0000000007990000-0x00000000079AA000-memory.dmp
memory/4208-78-0x0000000007880000-0x000000000788E000-memory.dmp
memory/4836-12-0x0000000009DC0000-0x0000000009E44000-memory.dmp
memory/4836-40-0x0000000074860000-0x0000000075010000-memory.dmp
memory/4836-11-0x0000000009A80000-0x0000000009B14000-memory.dmp
memory/4836-4-0x00000000059A0000-0x00000000059AA000-memory.dmp
memory/4836-9-0x0000000005E40000-0x0000000005E48000-memory.dmp
memory/4836-5-0x0000000074860000-0x0000000075010000-memory.dmp
memory/4836-6-0x0000000005BE0000-0x0000000005C7C000-memory.dmp
memory/4836-0-0x000000007486E000-0x000000007486F000-memory.dmp
memory/4836-10-0x0000000005E50000-0x0000000005E5C000-memory.dmp
memory/4836-7-0x0000000006970000-0x0000000006E9C000-memory.dmp
memory/4836-3-0x00000000058E0000-0x0000000005972000-memory.dmp
memory/4836-2-0x0000000005E90000-0x0000000006434000-memory.dmp
memory/4836-8-0x0000000005E10000-0x0000000005E22000-memory.dmp
memory/4836-1-0x0000000000DE0000-0x0000000000ED6000-memory.dmp