Analysis
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max time kernel
122s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20231023-en -
resource tags
arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system -
submitted
01-12-2023 09:25
Static task
static1
Behavioral task
behavioral1
Sample
SAF-C161CS-LF-CA INFINEON2000 PCS.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
SAF-C161CS-LF-CA INFINEON2000 PCS.exe
Resource
win10v2004-20231127-en
General
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Target
SAF-C161CS-LF-CA INFINEON2000 PCS.exe
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Size
935KB
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MD5
3b339aabaf3bfb3af9d0e0887e554835
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SHA1
bb2d2846e92fd0a4c5e0a2040e74a3c7cfab8d02
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SHA256
9a1a81688bf7f92903009cceb1e592668a04048deebb264dfb5fd6c7c6fdd650
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SHA512
69a49929163d9c6c30630861ceb0e52fa145adfaf1deed43732298d14aabaf7c92ff46af5d14f0bd61a40677534afe63d1aa06599d91273c8846bd368e615871
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SSDEEP
24576:SG+Cw0kXuGN5jQypH+jDhtscbfnbOdVSrKHm9SO:6Cw0QuGN5REhbfbmVPm
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.medicalhome.com.pe - Port:
587 - Username:
[email protected] - Password:
MHinfo01 - 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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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
SAF-C161CS-LF-CA INFINEON2000 PCS.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\TZCld = "C:\\Users\\Admin\\AppData\\Roaming\\TZCld\\TZCld.exe" SAF-C161CS-LF-CA INFINEON2000 PCS.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
SAF-C161CS-LF-CA INFINEON2000 PCS.exedescription pid process target process PID 2152 set thread context of 2228 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe SAF-C161CS-LF-CA INFINEON2000 PCS.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 3 IoCs
Processes:
SAF-C161CS-LF-CA INFINEON2000 PCS.exepowershell.exepid process 2228 SAF-C161CS-LF-CA INFINEON2000 PCS.exe 2228 SAF-C161CS-LF-CA INFINEON2000 PCS.exe 2860 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
SAF-C161CS-LF-CA INFINEON2000 PCS.exepowershell.exedescription pid process Token: SeDebugPrivilege 2228 SAF-C161CS-LF-CA INFINEON2000 PCS.exe Token: SeDebugPrivilege 2860 powershell.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
SAF-C161CS-LF-CA INFINEON2000 PCS.exedescription pid process target process PID 2152 wrote to memory of 2860 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe powershell.exe PID 2152 wrote to memory of 2860 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe powershell.exe PID 2152 wrote to memory of 2860 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe powershell.exe PID 2152 wrote to memory of 2860 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe powershell.exe PID 2152 wrote to memory of 2724 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe schtasks.exe PID 2152 wrote to memory of 2724 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe schtasks.exe PID 2152 wrote to memory of 2724 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe schtasks.exe PID 2152 wrote to memory of 2724 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe schtasks.exe PID 2152 wrote to memory of 2228 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe SAF-C161CS-LF-CA INFINEON2000 PCS.exe PID 2152 wrote to memory of 2228 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe SAF-C161CS-LF-CA INFINEON2000 PCS.exe PID 2152 wrote to memory of 2228 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe SAF-C161CS-LF-CA INFINEON2000 PCS.exe PID 2152 wrote to memory of 2228 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe SAF-C161CS-LF-CA INFINEON2000 PCS.exe PID 2152 wrote to memory of 2228 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe SAF-C161CS-LF-CA INFINEON2000 PCS.exe PID 2152 wrote to memory of 2228 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe SAF-C161CS-LF-CA INFINEON2000 PCS.exe PID 2152 wrote to memory of 2228 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe SAF-C161CS-LF-CA INFINEON2000 PCS.exe PID 2152 wrote to memory of 2228 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe SAF-C161CS-LF-CA INFINEON2000 PCS.exe PID 2152 wrote to memory of 2228 2152 SAF-C161CS-LF-CA INFINEON2000 PCS.exe SAF-C161CS-LF-CA INFINEON2000 PCS.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\SAF-C161CS-LF-CA INFINEON2000 PCS.exe"C:\Users\Admin\AppData\Local\Temp\SAF-C161CS-LF-CA INFINEON2000 PCS.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2152 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QAJeFu.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2860 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QAJeFu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEC04.tmp"2⤵
- Creates scheduled task(s)
PID:2724 -
C:\Users\Admin\AppData\Local\Temp\SAF-C161CS-LF-CA INFINEON2000 PCS.exe"C:\Users\Admin\AppData\Local\Temp\SAF-C161CS-LF-CA INFINEON2000 PCS.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2228
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD58b2e99ba04624aa52a9fa00cb5282646
SHA14067503629cf3e3963fb1121f619a461cf050a40
SHA256b313186f6970e795791b2837cbeaa5d6d8fc2413dcec4f2507c23ed06abcbf23
SHA512e5cff50ca8dc816925575806316dcf3fc3f5aa2fcc46a30014c0bc85b5ee32be982d2754b945dc7aa415f7e956b67bcecba191c3d4fc60e22c9775e00717c000
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Filesize
935KB
MD53b339aabaf3bfb3af9d0e0887e554835
SHA1bb2d2846e92fd0a4c5e0a2040e74a3c7cfab8d02
SHA2569a1a81688bf7f92903009cceb1e592668a04048deebb264dfb5fd6c7c6fdd650
SHA51269a49929163d9c6c30630861ceb0e52fa145adfaf1deed43732298d14aabaf7c92ff46af5d14f0bd61a40677534afe63d1aa06599d91273c8846bd368e615871