Resubmissions
06/12/2021, 10:42
211206-mrvzjadggm 1018/11/2021, 09:01
211118-kyyynafbd7 718/11/2021, 08:53
211118-ktap9scbam 7Analysis
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max time kernel
121s -
max time network
121s -
platform
windows7_x64 -
resource
win7-en-20211014 -
submitted
06/12/2021, 10:42
Static task
static1
Behavioral task
behavioral1
Sample
2098765234567890987660.E.exe
Resource
win7-en-20211014
Behavioral task
behavioral2
Sample
2098765234567890987660.E.exe
Resource
win10-en-20211104
General
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Target
2098765234567890987660.E.exe
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Size
759KB
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MD5
bbbf28c148eb325812183d91d8e8a239
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SHA1
ba7612abff608b6dd038acfb43a31741329e007c
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SHA256
caa0fa101c0ee313ae591239f18dcd8fc37cb235af7dfb2e9de350d7f448d34b
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SHA512
852c5aedfc4090559d50ea136aeb6270308766585acb49054f64c570af1011e26b295d681064cbe00d227b3d4dbfd0cc2a34d1113052eb5cc097dbde925978bc
Malware Config
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger Payload 3 IoCs
resource yara_rule behavioral1/memory/1124-57-0x0000000000400000-0x000000000048B000-memory.dmp family_snakekeylogger behavioral1/memory/1124-58-0x000000000040188B-mapping.dmp family_snakekeylogger behavioral1/memory/1124-60-0x0000000000400000-0x000000000048B000-memory.dmp family_snakekeylogger -
Loads dropped DLL 1 IoCs
pid Process 856 2098765234567890987660.E.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2098765234567890987660.E.exe Key opened \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2098765234567890987660.E.exe Key opened \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2098765234567890987660.E.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 checkip.dyndns.org 6 freegeoip.app 7 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 856 set thread context of 1124 856 2098765234567890987660.E.exe 28 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1124 2098765234567890987660.E.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1124 2098765234567890987660.E.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 856 wrote to memory of 1124 856 2098765234567890987660.E.exe 28 PID 856 wrote to memory of 1124 856 2098765234567890987660.E.exe 28 PID 856 wrote to memory of 1124 856 2098765234567890987660.E.exe 28 PID 856 wrote to memory of 1124 856 2098765234567890987660.E.exe 28 PID 856 wrote to memory of 1124 856 2098765234567890987660.E.exe 28 PID 856 wrote to memory of 1124 856 2098765234567890987660.E.exe 28 PID 856 wrote to memory of 1124 856 2098765234567890987660.E.exe 28 PID 856 wrote to memory of 1124 856 2098765234567890987660.E.exe 28 PID 856 wrote to memory of 1124 856 2098765234567890987660.E.exe 28 PID 856 wrote to memory of 1124 856 2098765234567890987660.E.exe 28 PID 856 wrote to memory of 1124 856 2098765234567890987660.E.exe 28 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2098765234567890987660.E.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2098765234567890987660.E.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2098765234567890987660.E.exe"C:\Users\Admin\AppData\Local\Temp\2098765234567890987660.E.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:856 -
C:\Users\Admin\AppData\Local\Temp\2098765234567890987660.E.exe"C:\Users\Admin\AppData\Local\Temp\2098765234567890987660.E.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1124
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