Analysis
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max time kernel
111s -
max time network
109s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
19/01/2025, 11:45
Static task
static1
Behavioral task
behavioral1
Sample
99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe
Resource
win10v2004-20241007-en
General
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Target
99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe
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Size
333KB
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MD5
cca95274bbaabcfee72efaccca85a58f
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SHA1
b19c2fa5d7243ebcc3e782b4e3442f9984b3c5c5
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SHA256
99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd
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SHA512
db70626e44ad33fc7de55ca8a358cfadb6c2d47b5278e1f3e9ffd0bf96cdbb8912cc868b424e7a5565a53624c13caec0be6877325f338d01e7179d6acec7a652
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SSDEEP
6144:68YGTEOzKyTcxRGfTeyr48vouepdTk3xN7zHx2LHtgEbE+:686OsxRGLeyr48vYpdTkBRzR2LHtgEb7
Malware Config
Extracted
Protocol: smtp- Host:
webmail.netins.net - Port:
587 - Username:
[email protected] - Password:
Nskt3238
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-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\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 7 checkip.dyndns.org 9 reallyfreegeoip.org 10 reallyfreegeoip.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3304 set thread context of 1948 3304 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 83 -
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 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1948 RegAsm.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1948 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1948 RegAsm.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1948 RegAsm.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3304 wrote to memory of 1948 3304 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 83 PID 3304 wrote to memory of 1948 3304 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 83 PID 3304 wrote to memory of 1948 3304 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 83 PID 3304 wrote to memory of 1948 3304 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 83 PID 3304 wrote to memory of 1948 3304 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 83 PID 3304 wrote to memory of 1948 3304 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 83 PID 3304 wrote to memory of 1948 3304 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 83 PID 3304 wrote to memory of 1948 3304 99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe 83 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe"C:\Users\Admin\AppData\Local\Temp\99cf8b9ecef4e9dc7196761c2ce9648d82ace0a76674efc21fa565e39e2349cd.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3304 -
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 behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1948
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