Analysis
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max time kernel
121s -
max time network
135s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
26-12-2024 11:12
Static task
static1
Behavioral task
behavioral1
Sample
Dotc67890990.pdf.zip
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
Dotc67890990.pdf.zip
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
Dotc67890990.exe
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
Dotc67890990.exe
Resource
win10v2004-20241007-en
General
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Target
Dotc67890990.exe
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Size
1.1MB
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MD5
cc9b17d7e2fd4cd0150c27eb6aa57b74
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SHA1
3eed0a0e06be6d082e3965545ef367a7a6694d68
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SHA256
58cc97c8ec91ff5751fefc5eb22620f80c05b1fc81b7447d8475c67b31b4e4d2
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SHA512
b3d35f5cbca4865bbb839321715b5a55d4f5be39ed75a7bde8536fda4012c002c8a86c91b26b78633bc294aeb1d63a7022f384a1dbfd0fdb015fb0ac563c4bfa
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SSDEEP
24576:iAHnh+eWsN3skA4RV1Hom2KXMmHalntScQWro5:lh+ZkldoPK8YarS2y
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.daipro.com.mx - Port:
587 - Username:
[email protected] - Password:
DAIpro123** - Email To:
[email protected]
https://scratchdreams.tk
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 4 IoCs
resource yara_rule behavioral3/memory/2792-22-0x0000000000090000-0x00000000000B6000-memory.dmp family_snakekeylogger behavioral3/memory/2792-31-0x0000000000090000-0x00000000000B6000-memory.dmp family_snakekeylogger behavioral3/memory/2792-28-0x0000000000090000-0x00000000000B6000-memory.dmp family_snakekeylogger behavioral3/memory/2792-24-0x0000000000090000-0x00000000000B6000-memory.dmp family_snakekeylogger -
Snakekeylogger family
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Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\brawlis.vbs brawlis.exe -
Executes dropped EXE 1 IoCs
pid Process 2768 brawlis.exe -
Loads dropped DLL 1 IoCs
pid Process 2196 Dotc67890990.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.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 4 checkip.dyndns.org -
AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral3/files/0x0008000000016dd1-8.dat autoit_exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2768 set thread context of 2792 2768 brawlis.exe 32 -
System Location Discovery: System Language Discovery 1 TTPs 3 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 Dotc67890990.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language brawlis.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2792 RegSvcs.exe 2792 RegSvcs.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2768 brawlis.exe 2768 brawlis.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2792 RegSvcs.exe -
Suspicious use of FindShellTrayWindow 4 IoCs
pid Process 2196 Dotc67890990.exe 2196 Dotc67890990.exe 2768 brawlis.exe 2768 brawlis.exe -
Suspicious use of SendNotifyMessage 4 IoCs
pid Process 2196 Dotc67890990.exe 2196 Dotc67890990.exe 2768 brawlis.exe 2768 brawlis.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2196 wrote to memory of 2768 2196 Dotc67890990.exe 31 PID 2196 wrote to memory of 2768 2196 Dotc67890990.exe 31 PID 2196 wrote to memory of 2768 2196 Dotc67890990.exe 31 PID 2196 wrote to memory of 2768 2196 Dotc67890990.exe 31 PID 2768 wrote to memory of 2792 2768 brawlis.exe 32 PID 2768 wrote to memory of 2792 2768 brawlis.exe 32 PID 2768 wrote to memory of 2792 2768 brawlis.exe 32 PID 2768 wrote to memory of 2792 2768 brawlis.exe 32 PID 2768 wrote to memory of 2792 2768 brawlis.exe 32 PID 2768 wrote to memory of 2792 2768 brawlis.exe 32 PID 2768 wrote to memory of 2792 2768 brawlis.exe 32 PID 2768 wrote to memory of 2792 2768 brawlis.exe 32 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Dotc67890990.exe"C:\Users\Admin\AppData\Local\Temp\Dotc67890990.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2196 -
C:\Users\Admin\AppData\Local\unprickled\brawlis.exe"C:\Users\Admin\AppData\Local\Temp\Dotc67890990.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2768 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\Dotc67890990.exe"3⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2792
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.1MB
MD5cc9b17d7e2fd4cd0150c27eb6aa57b74
SHA13eed0a0e06be6d082e3965545ef367a7a6694d68
SHA25658cc97c8ec91ff5751fefc5eb22620f80c05b1fc81b7447d8475c67b31b4e4d2
SHA512b3d35f5cbca4865bbb839321715b5a55d4f5be39ed75a7bde8536fda4012c002c8a86c91b26b78633bc294aeb1d63a7022f384a1dbfd0fdb015fb0ac563c4bfa