Analysis
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max time kernel
134s -
max time network
165s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
12/10/2023, 15:42
Static task
static1
Behavioral task
behavioral1
Sample
INVOICE.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
INVOICE.exe
Resource
win10v2004-20230915-en
General
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Target
INVOICE.exe
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Size
744KB
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MD5
96ff653a4a498f792831a9dff23a53a3
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SHA1
0b2a57416e5ef2501da53dcf85393ca75073302a
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SHA256
cb2d7edd70d009dcd6878c55cfb1a20b5c8ae4083eca125eee7df1a4da117b25
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SHA512
a619036588e34a85bab7b74ff1dcef60daad61ba8ec9d6f8d4cb492b35189f61ac713df1ca8218f315078b834682525f923f5d593e947098c357c74372f835cf
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SSDEEP
12288:BAfDuHOXHo9tg650cphYnUSVqfBmh1kqjgtv6Oi23gSgzFpYPNadhRNZkdNIEPV/:BgtocDc7yXsKmtv674gSgzPirk7eZ
Malware Config
Signatures
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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-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE.exe Key opened \REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE.exe Key opened \REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 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.
flow ioc 39 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1768 set thread context of 4980 1768 INVOICE.exe 92 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4980 INVOICE.exe 4980 INVOICE.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4980 INVOICE.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4980 INVOICE.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1768 wrote to memory of 4980 1768 INVOICE.exe 92 PID 1768 wrote to memory of 4980 1768 INVOICE.exe 92 PID 1768 wrote to memory of 4980 1768 INVOICE.exe 92 PID 1768 wrote to memory of 4980 1768 INVOICE.exe 92 PID 1768 wrote to memory of 4980 1768 INVOICE.exe 92 PID 1768 wrote to memory of 4980 1768 INVOICE.exe 92 PID 1768 wrote to memory of 4980 1768 INVOICE.exe 92 PID 1768 wrote to memory of 4980 1768 INVOICE.exe 92 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INVOICE.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1574508946-349927670-1185736483-1000\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 use of WriteProcessMemory
PID:1768 -
C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4980
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