Analysis
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max time kernel
118s -
max time network
131s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
04-12-2024 13:16
Static task
static1
Behavioral task
behavioral1
Sample
4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe
Resource
win10v2004-20241007-en
General
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Target
4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe
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Size
969KB
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MD5
ecedaaa41831352c70c85513830d50cf
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SHA1
5e8090d8c9f963a90c168ddf5c2d565f51d17401
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SHA256
4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d
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SHA512
fc00197ff690bb19f5adf04ae35a3087f48d5c18f563361e60f0556199b4821a089f32cdfc01e016b5fc4ed2d0b1e867a66a5dc3e028879085c4aae028f98c17
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SSDEEP
12288:SAeY2iNw0+9MKxtofaDnpDjfJSn4TYyBd+Bk8ADqjJ5np5W0xAJRNLoHYqHpO5CD:SAJ1Ielq7JSnHuijr
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.rinc.in - Port:
587 - Username:
[email protected] - Password:
easter@499 - Email To:
[email protected]
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 5 IoCs
resource yara_rule behavioral1/memory/2788-15-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2788-21-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2788-25-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2788-23-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2788-17-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
Snakekeylogger family
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Disables Task Manager via registry modification
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Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\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 -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2116 set thread context of 2788 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 33 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2744 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 2788 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe Token: SeDebugPrivilege 2788 RegSvcs.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 2116 wrote to memory of 2744 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 31 PID 2116 wrote to memory of 2744 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 31 PID 2116 wrote to memory of 2744 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 31 PID 2116 wrote to memory of 2744 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 31 PID 2116 wrote to memory of 2788 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 33 PID 2116 wrote to memory of 2788 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 33 PID 2116 wrote to memory of 2788 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 33 PID 2116 wrote to memory of 2788 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 33 PID 2116 wrote to memory of 2788 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 33 PID 2116 wrote to memory of 2788 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 33 PID 2116 wrote to memory of 2788 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 33 PID 2116 wrote to memory of 2788 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 33 PID 2116 wrote to memory of 2788 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 33 PID 2116 wrote to memory of 2788 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 33 PID 2116 wrote to memory of 2788 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 33 PID 2116 wrote to memory of 2788 2116 4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe 33 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe"C:\Users\Admin\AppData\Local\Temp\4b8c422424da67396c509a69146fea0c028e4a85994413205ae933c4a9a5bd5d.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2116 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CEhLam" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2D38.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2744
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"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:2788
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5c294a06d3bdd74b647fca3bb67380d11
SHA157a5728b5f7b45c80f708011820812c0c38556d2
SHA256b761e0bd1a04d54a04680837a0873fc0a8b6db1fa909874bd9fd59d50795b39b
SHA51283f5a2f5027b8df5fe16c16fde7937972f7b4421cf7b49900dd047d695bb943f180dc1ff0e6cb380ec9e5a2bd306b0b5fb7a90b12f0edbf6f2aeaed47e4ffb2e