Analysis
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max time kernel
120s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20231201-en -
resource tags
arch:x64arch:x86image:win7-20231201-enlocale:en-usos:windows7-x64system -
submitted
08-12-2023 02:40
Static task
static1
Behavioral task
behavioral1
Sample
Invoice.exe
Resource
win7-20231201-en
Behavioral task
behavioral2
Sample
Invoice.exe
Resource
win10v2004-20231130-en
General
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Target
Invoice.exe
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Size
603KB
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MD5
3552552714e612e9c9bef9c2684b9341
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SHA1
a547d614934e54d862e7d18b31a18cea0227669f
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SHA256
16b256209f831283dae3df4c0accba88f2c40181efda89a644e2948bb4d7c8dc
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SHA512
906bedfd82ae522e8a48a174ce3abfb7eb2cd5b97f77ffb8afe0f85a723e616a61b23568f0abb97b87800a4e90cda0b88a2914c5363daba973acd7c1b9df65b1
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SSDEEP
12288:tBqW3HA+GP0C5vkEFR7LOGJXWSNhScAueH5qzr:t7kJ58EFNWGhvkq
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
kV$bSqJ1 daniel - 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-1-5-21-1514849007-2165033493-4114354048-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Invoice.exe Key opened \REGISTRY\USER\S-1-5-21-1514849007-2165033493-4114354048-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Invoice.exe Key opened \REGISTRY\USER\S-1-5-21-1514849007-2165033493-4114354048-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Invoice.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1514849007-2165033493-4114354048-1000\Software\Microsoft\Windows\CurrentVersion\Run\sOFvE = "C:\\Users\\Admin\\AppData\\Roaming\\sOFvE\\sOFvE.exe" Invoice.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 2 api.ipify.org 3 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2524 set thread context of 2824 2524 Invoice.exe 32 -
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.
pid Process 2788 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2524 Invoice.exe 2524 Invoice.exe 2312 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2524 Invoice.exe Token: SeDebugPrivilege 2824 Invoice.exe Token: SeDebugPrivilege 2312 powershell.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2524 wrote to memory of 2312 2524 Invoice.exe 28 PID 2524 wrote to memory of 2312 2524 Invoice.exe 28 PID 2524 wrote to memory of 2312 2524 Invoice.exe 28 PID 2524 wrote to memory of 2312 2524 Invoice.exe 28 PID 2524 wrote to memory of 2788 2524 Invoice.exe 30 PID 2524 wrote to memory of 2788 2524 Invoice.exe 30 PID 2524 wrote to memory of 2788 2524 Invoice.exe 30 PID 2524 wrote to memory of 2788 2524 Invoice.exe 30 PID 2524 wrote to memory of 2824 2524 Invoice.exe 32 PID 2524 wrote to memory of 2824 2524 Invoice.exe 32 PID 2524 wrote to memory of 2824 2524 Invoice.exe 32 PID 2524 wrote to memory of 2824 2524 Invoice.exe 32 PID 2524 wrote to memory of 2824 2524 Invoice.exe 32 PID 2524 wrote to memory of 2824 2524 Invoice.exe 32 PID 2524 wrote to memory of 2824 2524 Invoice.exe 32 PID 2524 wrote to memory of 2824 2524 Invoice.exe 32 PID 2524 wrote to memory of 2824 2524 Invoice.exe 32 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1514849007-2165033493-4114354048-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Invoice.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1514849007-2165033493-4114354048-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 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:2524 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\pgmlkvLgopP.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2312
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pgmlkvLgopP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4E01.tmp"2⤵
- Creates scheduled task(s)
PID:2788
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C:\Users\Admin\AppData\Local\Temp\Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2824
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5e5c3e3a569733d9f036d032971cd9290
SHA155d90d3a758b5dda924857db8b190cdbe3786ac7
SHA256dae613bd4e670915354b6b30bb7d9293e3518a66e02bbcf1c140a0e2161e4d1e
SHA5128afb3003352f4649d060b65aebfce63802e6c9a9d5e8c51890856298be9c37c324ae869e05d6c739271ebbf06b14faff0d7b368d551df5535aa7ecfe692af103