Analysis
- max time kernel
112s - max time network
164s - platform
windows10-2004_x64 - resource
win10v2004-20220310-en - submitted
21/03/2022, 08:05
Static task
static1
Behavioral task
behavioral1
Sample
a14324f8142cd1b88a13dcd78763696f.exe
Resource
win7-20220311-en
Behavioral task
behavioral2
Sample
a14324f8142cd1b88a13dcd78763696f.exe
Resource
win10v2004-20220310-en
General
- Target a14324f8142cd1b88a13dcd78763696f.exe
- Size 651KB
- Sample220321-jyv2bsacb8
- SHA256 b3290a3fbb515f16464cc229377af2fb0c4e54764db5be91107523849acec6de
- MD5 a14324f8142cd1b88a13dcd78763696f
- SHA1 e36db93c1031c85a7c272b677a6d5c08c1d3f442
- SHA512 26b19a0f2076530a300d3e5bcef70eefa6ba9578ca97cb04ff48f73fa6bf8e1f553711aa2452d4d36eb671d45a748a7e2034f133f101232ccf8007267904d28b
- MD5 SHA1 SHA512
Malware Config
Extracted
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Protocol
smtp
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Host
smtp.gmail.com
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Port
587
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Username
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Password
king@2021
Extracted
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snakekeylogger
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Protocol
smtp
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Host
smtp.gmail.com
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Port
587
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Username
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Password
king@2021
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Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 1 IoCs
resource yara_rule behavioral2/memory/4408-148-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger - Looks for VirtualBox Guest Additions in registry 2 TTPs
- Disables RegEdit via registry modification
- Disables Task Manager via registry modification
- Looks for VMWare Tools registry key 2 TTPs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion a14324f8142cd1b88a13dcd78763696f.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion a14324f8142cd1b88a13dcd78763696f.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Control Panel\International\Geo\Nation a14324f8142cd1b88a13dcd78763696f.exe - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a14324f8142cd1b88a13dcd78763696f.exe Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a14324f8142cd1b88a13dcd78763696f.exe Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a14324f8142cd1b88a13dcd78763696f.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 74 checkip.dyndns.org 76 freegeoip.app 77 freegeoip.app - Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum a14324f8142cd1b88a13dcd78763696f.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 a14324f8142cd1b88a13dcd78763696f.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 632 set thread context of 4408 632 a14324f8142cd1b88a13dcd78763696f.exe 100 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4344 schtasks.exe - Modifies data under HKEY_USERS 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections svchost.exe - Modifies registry key 1 TTPs 1 IoCs
pid Process 4504 REG.exe - Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 4408 a14324f8142cd1b88a13dcd78763696f.exe 4408 a14324f8142cd1b88a13dcd78763696f.exe 4408 a14324f8142cd1b88a13dcd78763696f.exe 4408 a14324f8142cd1b88a13dcd78763696f.exe 4408 a14324f8142cd1b88a13dcd78763696f.exe 4408 a14324f8142cd1b88a13dcd78763696f.exe 4408 a14324f8142cd1b88a13dcd78763696f.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4408 a14324f8142cd1b88a13dcd78763696f.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4408 a14324f8142cd1b88a13dcd78763696f.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 632 wrote to memory of 4344 632 a14324f8142cd1b88a13dcd78763696f.exe 98 PID 632 wrote to memory of 4344 632 a14324f8142cd1b88a13dcd78763696f.exe 98 PID 632 wrote to memory of 4344 632 a14324f8142cd1b88a13dcd78763696f.exe 98 PID 632 wrote to memory of 4408 632 a14324f8142cd1b88a13dcd78763696f.exe 100 PID 632 wrote to memory of 4408 632 a14324f8142cd1b88a13dcd78763696f.exe 100 PID 632 wrote to memory of 4408 632 a14324f8142cd1b88a13dcd78763696f.exe 100 PID 632 wrote to memory of 4408 632 a14324f8142cd1b88a13dcd78763696f.exe 100 PID 632 wrote to memory of 4408 632 a14324f8142cd1b88a13dcd78763696f.exe 100 PID 632 wrote to memory of 4408 632 a14324f8142cd1b88a13dcd78763696f.exe 100 PID 632 wrote to memory of 4408 632 a14324f8142cd1b88a13dcd78763696f.exe 100 PID 632 wrote to memory of 4408 632 a14324f8142cd1b88a13dcd78763696f.exe 100 PID 4408 wrote to memory of 4504 4408 a14324f8142cd1b88a13dcd78763696f.exe 101 PID 4408 wrote to memory of 4504 4408 a14324f8142cd1b88a13dcd78763696f.exe 101 PID 4408 wrote to memory of 4504 4408 a14324f8142cd1b88a13dcd78763696f.exe 101 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a14324f8142cd1b88a13dcd78763696f.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a14324f8142cd1b88a13dcd78763696f.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a14324f8142cd1b88a13dcd78763696f.exe"C:\Users\Admin\AppData\Local\Temp\a14324f8142cd1b88a13dcd78763696f.exe"1⤵
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:632 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UXeGZNB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBC53.tmp"2⤵
- Creates scheduled task(s)
PID:4344
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C:\Users\Admin\AppData\Local\Temp\a14324f8142cd1b88a13dcd78763696f.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4408 -
C:\Windows\SysWOW64\REG.exeREG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f3⤵
- Modifies registry key
PID:4504
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p -s BITS1⤵
- Modifies data under HKEY_USERS
PID:3888