Analysis
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max time kernel
112s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
08-11-2024 15:34
Static task
static1
Behavioral task
behavioral1
Sample
e-dekont (72).pdf(~56 KB).exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
e-dekont (72).pdf(~56 KB).exe
Resource
win10v2004-20241007-en
General
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Target
e-dekont (72).pdf(~56 KB).exe
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Size
95KB
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MD5
ad61c5c16181fe8ce8fe58ab4bf3d15d
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SHA1
656ccb4712cb709b217da2341e3f6069caebf0fb
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SHA256
e7c828d9806cfaaa5251e8dfd14b76835a2e8f661ad392de85c6a93059202f40
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SHA512
1c5c1f58177daf6744b85cfabc8d5c55b6669bee5acb1e3d64f83695a044a617f6b9d3bf0a21824e3d8ef09ee397dd77cfb01f3066a709c6ca8300dc00167ba3
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SSDEEP
1536:lweD62hOc0LT1v7dmsRKEn+s0MP3p/dnfkNH+zORM2k6dRQcWmyzdBdreJAXb4+i:lweD62hOc0LldmgN0MPXoMl63VypeJWI
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot7690586559:AAHjgfU-aDw_iLX-s_ri6LZhjXJ7Pf6Mo9Y/sendMessage?chat_id=6008123474
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/4868-1096-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
Snakekeylogger family
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Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
description pid Process procid_target PID 4484 created 3532 4484 e-dekont (72).pdf(~56 KB).exe 56 -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Fallback.vbs e-dekont (72).pdf(~56 KB).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 16 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4484 set thread context of 4868 4484 e-dekont (72).pdf(~56 KB).exe 89 -
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 e-dekont (72).pdf(~56 KB).exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 4484 e-dekont (72).pdf(~56 KB).exe 4868 InstallUtil.exe 4868 InstallUtil.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4484 e-dekont (72).pdf(~56 KB).exe Token: SeDebugPrivilege 4484 e-dekont (72).pdf(~56 KB).exe Token: SeDebugPrivilege 4868 InstallUtil.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4484 wrote to memory of 4868 4484 e-dekont (72).pdf(~56 KB).exe 89 PID 4484 wrote to memory of 4868 4484 e-dekont (72).pdf(~56 KB).exe 89 PID 4484 wrote to memory of 4868 4484 e-dekont (72).pdf(~56 KB).exe 89 PID 4484 wrote to memory of 4868 4484 e-dekont (72).pdf(~56 KB).exe 89 PID 4484 wrote to memory of 4868 4484 e-dekont (72).pdf(~56 KB).exe 89 PID 4484 wrote to memory of 4868 4484 e-dekont (72).pdf(~56 KB).exe 89 PID 4484 wrote to memory of 4868 4484 e-dekont (72).pdf(~56 KB).exe 89 PID 4484 wrote to memory of 4868 4484 e-dekont (72).pdf(~56 KB).exe 89 -
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:3532
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C:\Users\Admin\AppData\Local\Temp\e-dekont (72).pdf(~56 KB).exe"C:\Users\Admin\AppData\Local\Temp\e-dekont (72).pdf(~56 KB).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:4484
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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:4868
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