Analysis
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max time kernel
132s -
max time network
161s -
platform
windows10_x64 -
resource
win10-en-20211014 -
submitted
02-12-2021 08:50
Static task
static1
Behavioral task
behavioral1
Sample
209876543456789000098.exe
Resource
win7-en-20211104
Behavioral task
behavioral2
Sample
209876543456789000098.exe
Resource
win10-en-20211014
General
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Target
209876543456789000098.exe
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Size
793KB
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MD5
70ce5952a189b5eb3b5a67170981fb93
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SHA1
ff3197ef1584ead3e7c2a39c1ac50591f8b2412f
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SHA256
a1183aa0c74ad8ad4cd678ba674d3ca9cb88c325bf4a585521d1d2fef6769dd1
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SHA512
7a9d78c3efb3f484f25d0064920cf02e653820a9a968a6cb09900668817b3bdecff94e3ea38328aceb98f1f758a6e1cd6c125d6c0dbb49ee47cf2ff10dbda175
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 behavioral2/memory/1300-119-0x0000000000400000-0x000000000048B000-memory.dmp family_snakekeylogger behavioral2/memory/1300-120-0x000000000040188B-mapping.dmp family_snakekeylogger behavioral2/memory/1300-121-0x0000000000400000-0x000000000048B000-memory.dmp family_snakekeylogger -
Loads dropped DLL 1 IoCs
pid Process 3364 209876543456789000098.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-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 209876543456789000098.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 209876543456789000098.exe Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 209876543456789000098.exe -
Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini 209876543456789000098.exe File opened for modification C:\Windows\assembly\Desktop.ini 209876543456789000098.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 8 checkip.dyndns.org 10 freegeoip.app 11 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3364 set thread context of 1300 3364 209876543456789000098.exe 68 -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\assembly 209876543456789000098.exe File created C:\Windows\assembly\Desktop.ini 209876543456789000098.exe File opened for modification C:\Windows\assembly\Desktop.ini 209876543456789000098.exe -
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 1300 209876543456789000098.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1300 209876543456789000098.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 3364 wrote to memory of 1300 3364 209876543456789000098.exe 68 PID 3364 wrote to memory of 1300 3364 209876543456789000098.exe 68 PID 3364 wrote to memory of 1300 3364 209876543456789000098.exe 68 PID 3364 wrote to memory of 1300 3364 209876543456789000098.exe 68 PID 3364 wrote to memory of 1300 3364 209876543456789000098.exe 68 PID 3364 wrote to memory of 1300 3364 209876543456789000098.exe 68 PID 3364 wrote to memory of 1300 3364 209876543456789000098.exe 68 PID 3364 wrote to memory of 1300 3364 209876543456789000098.exe 68 PID 3364 wrote to memory of 1300 3364 209876543456789000098.exe 68 PID 3364 wrote to memory of 1300 3364 209876543456789000098.exe 68 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 209876543456789000098.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 209876543456789000098.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\209876543456789000098.exe"C:\Users\Admin\AppData\Local\Temp\209876543456789000098.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3364 -
C:\Users\Admin\AppData\Local\Temp\209876543456789000098.exe"C:\Users\Admin\AppData\Local\Temp\209876543456789000098.exe"2⤵
- Accesses Microsoft Outlook profiles
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1300
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