Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
03-06-2024 09:51
Static task
static1
Behavioral task
behavioral1
Sample
PO76389.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
PO76389.exe
Resource
win10v2004-20240226-en
General
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Target
PO76389.exe
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Size
851KB
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MD5
b78a41cfedbd72be9cda0c2e8b456b9b
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SHA1
842a457a15cd9b35c930e86aa3adca801231c0c9
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SHA256
b43813d1e597a0633fc8693d5921688a8b189cfdc6c74fda22e42c2aefa3270c
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SHA512
2511b4647e030b02b3441fdf17259fa49547dead3c3b19d4a8bd04b1825d5bbe464d00cee273bd35f06a14bb66c135453e8d381bdf2b8c0fc2d5e5ba5edaecee
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SSDEEP
12288:PMYeaky/Qa0KP1x+kPwu9JaGYd89Lt/rFfaolj2YqEvlw7KZNy6XXSJFY/SYwkiN:PMYej0N5iYKR6XXSvY/STixHu9Iif
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.psgrasa.ir - Port:
587 - Username:
[email protected] - Password:
mahsa730101 - 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:
PO76389.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\YxAesh = "C:\\Users\\Admin\\AppData\\Roaming\\YxAesh\\YxAesh.exe" PO76389.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PO76389.exedescription pid process target process PID 328 set thread context of 2264 328 PO76389.exe PO76389.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
PO76389.exepid process 2264 PO76389.exe 2264 PO76389.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
PO76389.exedescription pid process Token: SeDebugPrivilege 2264 PO76389.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
PO76389.exepid process 2264 PO76389.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
PO76389.exedescription pid process target process PID 328 wrote to memory of 2264 328 PO76389.exe PO76389.exe PID 328 wrote to memory of 2264 328 PO76389.exe PO76389.exe PID 328 wrote to memory of 2264 328 PO76389.exe PO76389.exe PID 328 wrote to memory of 2264 328 PO76389.exe PO76389.exe PID 328 wrote to memory of 2264 328 PO76389.exe PO76389.exe PID 328 wrote to memory of 2264 328 PO76389.exe PO76389.exe PID 328 wrote to memory of 2264 328 PO76389.exe PO76389.exe PID 328 wrote to memory of 2264 328 PO76389.exe PO76389.exe PID 328 wrote to memory of 2264 328 PO76389.exe PO76389.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO76389.exe"C:\Users\Admin\AppData\Local\Temp\PO76389.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:328 -
C:\Users\Admin\AppData\Local\Temp\PO76389.exe"C:\Users\Admin\AppData\Local\Temp\PO76389.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2264