Analysis
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max time kernel
121s -
max time network
135s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
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submitted
22-05-2024 16:56
General
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Target
Invoice,cost inquiry_PDF.exe
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Size
768KB
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MD5
aa2e0331db7bdc7c4a51a4d9ca2f4832
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SHA1
fc6ee67838401e8cbcef4e2c547d06cb56f12628
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SHA256
f0e352c3fbf73706c4c0fd2e118cf10b241dd880b58ceb67491b585fa5719fad
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SHA512
42c7e114bd9fa67301724481c893bfaa95ec633b53328d157b95e26fe6c4ca29e29cbda5ac0bcc73577865d18d4c3875fc2c08f6747f4ec926868e41c20957c3
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SSDEEP
12288:+IeWET/mr9K+22BEEzFatnhghS5+v+DUVNf5MWl0axTbo+i1Cv7z2CjH8mri7jY3:OWtb3BEMhS5qOk5SVC+CjcmWg
Malware Config
Extracted
Protocol: smtp- Host:
mail.deblokhoeve.be - Port:
587 - Username:
[email protected] - Password:
Blokhoeve2490.i
Extracted
agenttesla
Protocol: smtp- Host:
mail.deblokhoeve.be - Port:
587 - Username:
[email protected] - Password:
Blokhoeve2490.i - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 3 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Invoice,cost inquiry_PDF.exe"C:\Users\Admin\AppData\Local\Temp\Invoice,cost inquiry_PDF.exe"1⤵
- Suspicious use of SetThreadContext
- 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\saPiRlsccSHapA.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\saPiRlsccSHapA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7050.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Invoice,cost inquiry_PDF.exe"C:\Users\Admin\AppData\Local\Temp\Invoice,cost inquiry_PDF.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015Filesize
68KB
MD529f65ba8e88c063813cc50a4ea544e93
SHA105a7040d5c127e68c25d81cc51271ffb8bef3568
SHA2561ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
SHA512e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa
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C:\Users\Admin\AppData\Local\Temp\TarBA13.tmpFilesize
177KB
MD5435a9ac180383f9fa094131b173a2f7b
SHA176944ea657a9db94f9a4bef38f88c46ed4166983
SHA25667dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
SHA5121a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a
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C:\Users\Admin\AppData\Local\Temp\tmp7050.tmpFilesize
1KB
MD51fb3c2e2f18b09c4d2f045342f0148b0
SHA10ac09fcf88257a9acadfeb3003118cf0eee42d7b
SHA2562f27b9025a4d257ec6afe0e9b53a251e22d9f80055fb0863800c6883047c0526
SHA51262e430cbcc88283a912b39812b36a2edc657532bc10ce6105bdffe1710f92a6f6e850f0dddecb65ce7420bc5831fd5cf80abae94758849329da3028e4f8093e5
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memory/2164-24-0x0000000074C90000-0x000000007537E000-memory.dmpFilesize
6.9MB
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memory/2164-1-0x00000000010B0000-0x0000000001176000-memory.dmpFilesize
792KB
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memory/2164-2-0x0000000074C90000-0x000000007537E000-memory.dmpFilesize
6.9MB
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memory/2164-3-0x0000000000420000-0x0000000000442000-memory.dmpFilesize
136KB
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memory/2164-4-0x00000000003E0000-0x00000000003EC000-memory.dmpFilesize
48KB
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memory/2164-5-0x0000000000450000-0x0000000000460000-memory.dmpFilesize
64KB
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memory/2164-6-0x0000000005F60000-0x0000000005FE6000-memory.dmpFilesize
536KB
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memory/2164-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmpFilesize
4KB
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memory/2468-12-0x0000000000400000-0x0000000000444000-memory.dmpFilesize
272KB
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memory/2468-22-0x0000000000400000-0x0000000000444000-memory.dmpFilesize
272KB
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memory/2468-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/2468-18-0x0000000000400000-0x0000000000444000-memory.dmpFilesize
272KB
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memory/2468-16-0x0000000000400000-0x0000000000444000-memory.dmpFilesize
272KB
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memory/2468-14-0x0000000000400000-0x0000000000444000-memory.dmpFilesize
272KB
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memory/2468-23-0x0000000000400000-0x0000000000444000-memory.dmpFilesize
272KB
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memory/2468-21-0x0000000000400000-0x0000000000444000-memory.dmpFilesize
272KB