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Analysis
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max time kernel
122s -
max time network
138s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
12/10/2023, 16:44
Static task
static1
Behavioral task
behavioral1
Sample
Purchase contract 23K11-086.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
Purchase contract 23K11-086.exe
Resource
win10v2004-20230915-en
General
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Target
Purchase contract 23K11-086.exe
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Size
680KB
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MD5
d87dc3556f0ee0c56863f83c1dfa88ab
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SHA1
434f9728b7e5708cc6e3b24cd4df437fb454d5bf
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SHA256
024c11134a00bda4eaf6a4528131e86652aaa1c1931d71c2f413c7c133b74c75
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SHA512
af6d0be79f90e361a032e97e449b8327d6dac987b53f7b6531c186724664e8a912602088dad62d365d689d41d34d37c12b1439ccf74217d49b4e0806acb2151e
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SSDEEP
12288:zYgAfDuHOXCcBq08I209uEE3hctaEqqNs7pK3bvHRu0f730PmPAJs:zYggcGql09bIetaEqqTrxu0o02
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
IOL^xOF9 - 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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase contract 23K11-086.exe Key opened \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase contract 23K11-086.exe Key opened \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase contract 23K11-086.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.
flow ioc 4 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1768 set thread context of 2744 1768 Purchase contract 23K11-086.exe 33 -
Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 1768 Purchase contract 23K11-086.exe 1768 Purchase contract 23K11-086.exe 1768 Purchase contract 23K11-086.exe 1768 Purchase contract 23K11-086.exe 1768 Purchase contract 23K11-086.exe 2744 Purchase contract 23K11-086.exe 2744 Purchase contract 23K11-086.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1768 Purchase contract 23K11-086.exe Token: SeDebugPrivilege 2744 Purchase contract 23K11-086.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2744 Purchase contract 23K11-086.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 1768 wrote to memory of 2696 1768 Purchase contract 23K11-086.exe 30 PID 1768 wrote to memory of 2696 1768 Purchase contract 23K11-086.exe 30 PID 1768 wrote to memory of 2696 1768 Purchase contract 23K11-086.exe 30 PID 1768 wrote to memory of 2696 1768 Purchase contract 23K11-086.exe 30 PID 1768 wrote to memory of 2700 1768 Purchase contract 23K11-086.exe 31 PID 1768 wrote to memory of 2700 1768 Purchase contract 23K11-086.exe 31 PID 1768 wrote to memory of 2700 1768 Purchase contract 23K11-086.exe 31 PID 1768 wrote to memory of 2700 1768 Purchase contract 23K11-086.exe 31 PID 1768 wrote to memory of 2956 1768 Purchase contract 23K11-086.exe 32 PID 1768 wrote to memory of 2956 1768 Purchase contract 23K11-086.exe 32 PID 1768 wrote to memory of 2956 1768 Purchase contract 23K11-086.exe 32 PID 1768 wrote to memory of 2956 1768 Purchase contract 23K11-086.exe 32 PID 1768 wrote to memory of 2744 1768 Purchase contract 23K11-086.exe 33 PID 1768 wrote to memory of 2744 1768 Purchase contract 23K11-086.exe 33 PID 1768 wrote to memory of 2744 1768 Purchase contract 23K11-086.exe 33 PID 1768 wrote to memory of 2744 1768 Purchase contract 23K11-086.exe 33 PID 1768 wrote to memory of 2744 1768 Purchase contract 23K11-086.exe 33 PID 1768 wrote to memory of 2744 1768 Purchase contract 23K11-086.exe 33 PID 1768 wrote to memory of 2744 1768 Purchase contract 23K11-086.exe 33 PID 1768 wrote to memory of 2744 1768 Purchase contract 23K11-086.exe 33 PID 1768 wrote to memory of 2744 1768 Purchase contract 23K11-086.exe 33 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase contract 23K11-086.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase contract 23K11-086.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase contract 23K11-086.exe"C:\Users\Admin\AppData\Local\Temp\Purchase contract 23K11-086.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1768 -
C:\Users\Admin\AppData\Local\Temp\Purchase contract 23K11-086.exe"C:\Users\Admin\AppData\Local\Temp\Purchase contract 23K11-086.exe"2⤵PID:2696
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C:\Users\Admin\AppData\Local\Temp\Purchase contract 23K11-086.exe"C:\Users\Admin\AppData\Local\Temp\Purchase contract 23K11-086.exe"2⤵PID:2700
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C:\Users\Admin\AppData\Local\Temp\Purchase contract 23K11-086.exe"C:\Users\Admin\AppData\Local\Temp\Purchase contract 23K11-086.exe"2⤵PID:2956
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C:\Users\Admin\AppData\Local\Temp\Purchase contract 23K11-086.exe"C:\Users\Admin\AppData\Local\Temp\Purchase contract 23K11-086.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2744
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