Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
22-05-2024 19:07
Static task
static1
Behavioral task
behavioral1
Sample
invoice.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
invoice.exe
Resource
win10v2004-20240508-en
General
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Target
invoice.exe
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Size
662KB
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MD5
7e25fcb83e6c246f1db8539c26379f68
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SHA1
9387dd1db20f1d643437ddc90e2f227ce667ab99
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SHA256
92f372371d773e499445538a7f978fe16dc03bf772adf1151dc998a7916b284f
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SHA512
20f5d204b73021c7b6fb55d8e19b2d2533b214a2f5697019c0af5a60b047f7e8494dfc442ae6f4115d78789223e6080a8e36c5946f73d0b9ebae63c40e903006
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SSDEEP
12288:plYifTEb5syskpi7Ar7CiiYN3Q40CfT7VkxSs5sRVbEbYstXM5y:kiI5NsAr7CirN10C7eB5sR2cst8w
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.ipr-co.org - Port:
587 - Username:
[email protected] - Password:
IPRco@100102@ - 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:
invoice.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\BjTxJte = "C:\\Users\\Admin\\AppData\\Roaming\\BjTxJte\\BjTxJte.exe" invoice.exe -
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 4 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
invoice.exedescription pid process target process PID 2860 set thread context of 2340 2860 invoice.exe invoice.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
invoice.exeinvoice.exepid process 2860 invoice.exe 2340 invoice.exe 2340 invoice.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
invoice.exeinvoice.exedescription pid process Token: SeDebugPrivilege 2860 invoice.exe Token: SeDebugPrivilege 2340 invoice.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
invoice.exepid process 2340 invoice.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
invoice.exedescription pid process target process PID 2860 wrote to memory of 2256 2860 invoice.exe invoice.exe PID 2860 wrote to memory of 2256 2860 invoice.exe invoice.exe PID 2860 wrote to memory of 2256 2860 invoice.exe invoice.exe PID 2860 wrote to memory of 2256 2860 invoice.exe invoice.exe PID 2860 wrote to memory of 2340 2860 invoice.exe invoice.exe PID 2860 wrote to memory of 2340 2860 invoice.exe invoice.exe PID 2860 wrote to memory of 2340 2860 invoice.exe invoice.exe PID 2860 wrote to memory of 2340 2860 invoice.exe invoice.exe PID 2860 wrote to memory of 2340 2860 invoice.exe invoice.exe PID 2860 wrote to memory of 2340 2860 invoice.exe invoice.exe PID 2860 wrote to memory of 2340 2860 invoice.exe invoice.exe PID 2860 wrote to memory of 2340 2860 invoice.exe invoice.exe PID 2860 wrote to memory of 2340 2860 invoice.exe invoice.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\invoice.exe"C:\Users\Admin\AppData\Local\Temp\invoice.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2860 -
C:\Users\Admin\AppData\Local\Temp\invoice.exe"C:\Users\Admin\AppData\Local\Temp\invoice.exe"2⤵PID:2256
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C:\Users\Admin\AppData\Local\Temp\invoice.exe"C:\Users\Admin\AppData\Local\Temp\invoice.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2340