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Analysis
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max time kernel
70s -
max time network
49s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
19/10/2022, 07:25
Static task
static1
Behavioral task
behavioral1
Sample
76.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
76.exe
Resource
win10v2004-20220812-en
General
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Target
76.exe
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Size
6KB
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MD5
4df280fea800291ab943f10909194e74
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SHA1
022a5f042e3db04009dad89006532618fbed8808
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SHA256
026b11037329ad5ff8cda17668d30b59366df051ab09ab35790f2d2e8324a85d
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SHA512
b39f2a0796e0cc915a68d284f5c8b2eb7737368e8aba1fcbac754c5f653d26e9286436bb033e2e9fdd46015dd8d5fc4716984541518f89f394aa3dd013d263e8
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SSDEEP
96:Giete33Zahzeo7yycaw1H+AUn2YQrtbszNt:ets3uz1bw1HelQrxW
Malware Config
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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 76.exe Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 76.exe Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 76.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Xadhwhcq = "\"C:\\Users\\Admin\\AppData\\Roaming\\Gnmcxv\\Xadhwhcq.exe\"" 76.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\App = "C:\\Users\\Admin\\AppData\\Roaming\\App\\App.exe" 76.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.
flow ioc 5 api.ipify.org 6 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1204 set thread context of 304 1204 76.exe 30 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 392 powershell.exe 1204 76.exe 304 76.exe 304 76.exe 304 76.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1204 76.exe Token: SeDebugPrivilege 392 powershell.exe Token: SeDebugPrivilege 304 76.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1204 wrote to memory of 392 1204 76.exe 27 PID 1204 wrote to memory of 392 1204 76.exe 27 PID 1204 wrote to memory of 392 1204 76.exe 27 PID 1204 wrote to memory of 392 1204 76.exe 27 PID 1204 wrote to memory of 800 1204 76.exe 29 PID 1204 wrote to memory of 800 1204 76.exe 29 PID 1204 wrote to memory of 800 1204 76.exe 29 PID 1204 wrote to memory of 800 1204 76.exe 29 PID 1204 wrote to memory of 304 1204 76.exe 30 PID 1204 wrote to memory of 304 1204 76.exe 30 PID 1204 wrote to memory of 304 1204 76.exe 30 PID 1204 wrote to memory of 304 1204 76.exe 30 PID 1204 wrote to memory of 304 1204 76.exe 30 PID 1204 wrote to memory of 304 1204 76.exe 30 PID 1204 wrote to memory of 304 1204 76.exe 30 PID 1204 wrote to memory of 304 1204 76.exe 30 PID 1204 wrote to memory of 304 1204 76.exe 30 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 76.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 76.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\76.exe"C:\Users\Admin\AppData\Local\Temp\76.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1204 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:392
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C:\Users\Admin\AppData\Local\Temp\76.exeC:\Users\Admin\AppData\Local\Temp\76.exe2⤵PID:800
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C:\Users\Admin\AppData\Local\Temp\76.exeC:\Users\Admin\AppData\Local\Temp\76.exe2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:304
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