Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20231130-en -
resource tags
arch:x64arch:x86image:win7-20231130-enlocale:en-usos:windows7-x64system -
submitted
05-12-2023 07:09
Static task
static1
Behavioral task
behavioral1
Sample
PDF.exe
Resource
win7-20231130-en
Behavioral task
behavioral2
Sample
PDF.exe
Resource
win10v2004-20231130-en
General
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Target
PDF.exe
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Size
711KB
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MD5
72974b75ad00da73e07b976b73c5afb6
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SHA1
094208c0eedb674553d1b7c0a99e46599d75acff
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SHA256
faf02d9acd5877e620c4fb200895a1306a555baedc6b5e7072a4928a1a39a20a
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SHA512
e708b48b2fabbe96eb78e0021dba6acb63078c413a0ad9063f6204c36357a867da9e883e02f7c1def0a5a6ec7a2596cfedda715beb483691b4434725f440d851
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SSDEEP
12288:j/bwLijBoKwyg+ldzxhPD4eu6fvLSReBFmPbSCcWCODgNjsyrroyVMx:jDKzyjlntS6GReuVvDgNjsyno
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.mailo.com - Port:
587 - Username:
[email protected] - Password:
Bignosa1995 - 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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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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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 2 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PDF.exedescription pid process target process PID 2856 set thread context of 3060 2856 PDF.exe PDF.exe -
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 10 IoCs
Processes:
PDF.exePDF.exepowershell.exepid process 2856 PDF.exe 2856 PDF.exe 2856 PDF.exe 2856 PDF.exe 2856 PDF.exe 2856 PDF.exe 2856 PDF.exe 3060 PDF.exe 3060 PDF.exe 2564 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
PDF.exePDF.exepowershell.exedescription pid process Token: SeDebugPrivilege 2856 PDF.exe Token: SeDebugPrivilege 3060 PDF.exe Token: SeDebugPrivilege 2564 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
PDF.exepid process 3060 PDF.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
PDF.exedescription pid process target process PID 2856 wrote to memory of 2564 2856 PDF.exe powershell.exe PID 2856 wrote to memory of 2564 2856 PDF.exe powershell.exe PID 2856 wrote to memory of 2564 2856 PDF.exe powershell.exe PID 2856 wrote to memory of 2564 2856 PDF.exe powershell.exe PID 2856 wrote to memory of 2632 2856 PDF.exe schtasks.exe PID 2856 wrote to memory of 2632 2856 PDF.exe schtasks.exe PID 2856 wrote to memory of 2632 2856 PDF.exe schtasks.exe PID 2856 wrote to memory of 2632 2856 PDF.exe schtasks.exe PID 2856 wrote to memory of 3060 2856 PDF.exe PDF.exe PID 2856 wrote to memory of 3060 2856 PDF.exe PDF.exe PID 2856 wrote to memory of 3060 2856 PDF.exe PDF.exe PID 2856 wrote to memory of 3060 2856 PDF.exe PDF.exe PID 2856 wrote to memory of 3060 2856 PDF.exe PDF.exe PID 2856 wrote to memory of 3060 2856 PDF.exe PDF.exe PID 2856 wrote to memory of 3060 2856 PDF.exe PDF.exe PID 2856 wrote to memory of 3060 2856 PDF.exe PDF.exe PID 2856 wrote to memory of 3060 2856 PDF.exe PDF.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PDF.exe"C:\Users\Admin\AppData\Local\Temp\PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2856 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YBGbQTeOWq.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2564 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YBGbQTeOWq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6558.tmp"2⤵
- Creates scheduled task(s)
PID:2632 -
C:\Users\Admin\AppData\Local\Temp\PDF.exe"C:\Users\Admin\AppData\Local\Temp\PDF.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3060
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD54f6112ff3b9aecd03d7e5e5bdae45acd
SHA1e9249ad33eb448bcd475cac61055846a68ee7ceb
SHA2567fcdec3721c279dc938ba8237c1d5ca1a54dc754020926b6c8c4c50640b0bbd4
SHA512f72ff2dfbc348a5cc9b2e74a6879b1a80f024f1834e610cd239a048d364c7db5f4b2e489bc2072386582c5e0e3577ec94c95ded0f0d7d676df52881335fbff0e