Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
19/01/2025, 19:27
Static task
static1
Behavioral task
behavioral1
Sample
66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe
Resource
win10v2004-20241007-en
General
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Target
66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe
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Size
219KB
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MD5
325317378480d1ad444e215dad24aa90
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SHA1
7616be601e5b805382e1b41921c71b414482f473
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SHA256
66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117
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SHA512
a29c9ff4c56db527bb0b8a5bc8e36a238c4f95a2e99ff04a596ecec80f1676112e3dc71843fa0b01f38003dc4232d346c19e7dc3a9c7e4b364aa14835fe34326
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SSDEEP
6144:G4PO62KI5dcdiYld9grw+GHyulg66cZGV:9PKKihC/grw+aG66cZC
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 3 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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 checkip.dyndns.org 8 reallyfreegeoip.org 9 reallyfreegeoip.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2412 set thread context of 2776 2412 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe 30 -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2776 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2776 RegAsm.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2412 wrote to memory of 2776 2412 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe 30 PID 2412 wrote to memory of 2776 2412 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe 30 PID 2412 wrote to memory of 2776 2412 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe 30 PID 2412 wrote to memory of 2776 2412 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe 30 PID 2412 wrote to memory of 2776 2412 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe 30 PID 2412 wrote to memory of 2776 2412 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe 30 PID 2412 wrote to memory of 2776 2412 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe 30 PID 2412 wrote to memory of 2776 2412 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe 30 PID 2412 wrote to memory of 2776 2412 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe 30 PID 2412 wrote to memory of 2776 2412 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe 30 PID 2412 wrote to memory of 2776 2412 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe 30 PID 2412 wrote to memory of 2776 2412 66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe 30 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe"C:\Users\Admin\AppData\Local\Temp\66d66c3e3dc276d5e326aa56ec7ca6b9149a18d5c823d4ae1ccc49613553b117N.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2412 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2776
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