Analysis
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max time kernel
108s -
max time network
136s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
11-11-2024 15:15
Static task
static1
Behavioral task
behavioral1
Sample
進口2024110501.pdf________________________________________________________________________________.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
進口2024110501.pdf________________________________________________________________________________.exe
Resource
win10v2004-20241007-en
General
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Target
進口2024110501.pdf________________________________________________________________________________.exe
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Size
1.2MB
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MD5
f585295744e49112f89a5a780645c416
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SHA1
0e37e6047af775bdcc95e173980a7972595c4094
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SHA256
8777c299f9a823f9c959d4bf77d8e61c3e3a0967a6b8c83a10e9087998b15ffc
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SHA512
2993628d7950f2de5c043234ed85850685ea392c169faceebd6071bcd210e6996d58bc670bcb99de872f45c9b9f18c07737089342e7af1222d8e5ca09c72e6bd
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SSDEEP
12288:jQdHxoWrmhiH7niDtx+qwqzZTg9IJbpQFSk3v5OsRr4NI8Lyym5g9dorD6m8rrvl:jgSm7A1mI5pQFn3RrXAXKD63rv
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot7956086012:AAEHTqhkPb2OzB5GbcO5JoISGRqcFuMwdn4/sendMessage?chat_id=5302361040
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/4840-1093-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
Snakekeylogger family
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Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
description pid Process procid_target PID 4148 created 3408 4148 進口2024110501.pdf________________________________________________________________________________.exe 56 -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Method.vbs 進口2024110501.pdf________________________________________________________________________________.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\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 18 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4148 set thread context of 4840 4148 進口2024110501.pdf________________________________________________________________________________.exe 91 -
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 進口2024110501.pdf________________________________________________________________________________.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 4148 進口2024110501.pdf________________________________________________________________________________.exe 4840 InstallUtil.exe 4840 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4148 進口2024110501.pdf________________________________________________________________________________.exe Token: SeDebugPrivilege 4148 進口2024110501.pdf________________________________________________________________________________.exe Token: SeDebugPrivilege 4840 InstallUtil.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4148 wrote to memory of 4840 4148 進口2024110501.pdf________________________________________________________________________________.exe 91 PID 4148 wrote to memory of 4840 4148 進口2024110501.pdf________________________________________________________________________________.exe 91 PID 4148 wrote to memory of 4840 4148 進口2024110501.pdf________________________________________________________________________________.exe 91 PID 4148 wrote to memory of 4840 4148 進口2024110501.pdf________________________________________________________________________________.exe 91 PID 4148 wrote to memory of 4840 4148 進口2024110501.pdf________________________________________________________________________________.exe 91 PID 4148 wrote to memory of 4840 4148 進口2024110501.pdf________________________________________________________________________________.exe 91 PID 4148 wrote to memory of 4840 4148 進口2024110501.pdf________________________________________________________________________________.exe 91 PID 4148 wrote to memory of 4840 4148 進口2024110501.pdf________________________________________________________________________________.exe 91 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\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:3408
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C:\Users\Admin\AppData\Local\Temp\進口2024110501.pdf________________________________________________________________________________.exe"C:\Users\Admin\AppData\Local\Temp\進口2024110501.pdf________________________________________________________________________________.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:4148
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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:4840
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