Analysis
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max time kernel
136s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
28-10-2024 17:59
Static task
static1
Behavioral task
behavioral1
Sample
Ndnownts.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
Ndnownts.exe
Resource
win10v2004-20241007-en
General
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Target
Ndnownts.exe
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Size
53KB
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MD5
297e05ee6ce9a0e345f5053d87ac7401
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SHA1
3aaf227b2a441d16477f2db50b35c03711f1c583
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SHA256
188d3957239f757531a5783322eaa577cef632c4bde8acc6b82ee166c79d4cc8
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SHA512
ff9f8b58992e3c09e0e72889a5793b0c50c806d1f2fca4afcd1125e6a9d65e0270c90b6c58d04814413eb660609b14248488e0d949ed0b0c824bde476c3229e0
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SSDEEP
768:oO8d/uNf0FME+RGoOfHvtkVCWDwIXSqi935jSsNPKzTKWV1YaojgQug1/nJpVI6C:Yg9vZy1/JI6WLLoHT0ti9hge+
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot7698096781:AAGQLD6o1kzjfTe7ym-NWYz9KeQ-WUS_Q04/sendMessage?chat_id=6243598265
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/4100-1095-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
Snakekeylogger family
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Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
description pid Process procid_target PID 2628 created 3432 2628 Ndnownts.exe 56 -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IsInvalid.vbs Ndnownts.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.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 27 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2628 set thread context of 4100 2628 Ndnownts.exe 92 -
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 Ndnownts.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2628 Ndnownts.exe 4100 InstallUtil.exe 4100 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2628 Ndnownts.exe Token: SeDebugPrivilege 2628 Ndnownts.exe Token: SeDebugPrivilege 4100 InstallUtil.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2628 wrote to memory of 4100 2628 Ndnownts.exe 92 PID 2628 wrote to memory of 4100 2628 Ndnownts.exe 92 PID 2628 wrote to memory of 4100 2628 Ndnownts.exe 92 PID 2628 wrote to memory of 4100 2628 Ndnownts.exe 92 PID 2628 wrote to memory of 4100 2628 Ndnownts.exe 92 PID 2628 wrote to memory of 4100 2628 Ndnownts.exe 92 PID 2628 wrote to memory of 4100 2628 Ndnownts.exe 92 PID 2628 wrote to memory of 4100 2628 Ndnownts.exe 92 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3432
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C:\Users\Admin\AppData\Local\Temp\Ndnownts.exe"C:\Users\Admin\AppData\Local\Temp\Ndnownts.exe"2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2628
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.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:4100
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