Analysis
- max time kernel
135s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
20/09/2022, 03:58
General
- Target SecuriteInfo.com.Variant.Strictor.275348.9253.14582.exe
- Size 801KB
- Sample220920-ejg4psbhe3
- SHA256 3b7b4ef071bf7db6cdf5be21c0ab645e03ad70277b101785534ef8da35b354ca
Malware Config
Extracted
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snakekeylogger
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Protocol
smtp
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Host
us2.smtp.mailhostbox.com
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Port
587
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Username
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Password
LYSV$*b4
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Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in System32 directory 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Enumerates system info in registry 2 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Strictor.275348.9253.14582.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Strictor.275348.9253.14582.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\byEpwLYPKydoWC.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\byEpwLYPKydoWC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE290.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Strictor.275348.9253.14582.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Strictor.275348.9253.14582.exe"2⤵
-
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Strictor.275348.9253.14582.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Strictor.275348.9253.14582.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
SecuriteInfo.com.Variant.Strictor.275348.9253.14582.exe.log
tmpE290.tmp
memory/868-153-0x00000000061A0000-0x00000000061BE000-memory.dmp
memory/868-148-0x0000000004BD0000-0x0000000004C36000-memory.dmp
memory/868-160-0x0000000007230000-0x0000000007238000-memory.dmp
memory/868-159-0x0000000007250000-0x000000000726A000-memory.dmp
memory/868-140-0x0000000004660000-0x0000000004696000-memory.dmp
memory/868-158-0x0000000007140000-0x000000000714E000-memory.dmp
memory/868-141-0x0000000004CD0000-0x00000000052F8000-memory.dmp
memory/868-157-0x0000000007180000-0x0000000007216000-memory.dmp
memory/868-144-0x0000000004B30000-0x0000000004B52000-memory.dmp
memory/868-156-0x0000000006F90000-0x0000000006F9A000-memory.dmp
memory/868-155-0x0000000006F10000-0x0000000006F2A000-memory.dmp
memory/868-154-0x0000000007560000-0x0000000007BDA000-memory.dmp
memory/868-152-0x00000000701C0000-0x000000007020C000-memory.dmp
memory/868-149-0x0000000005C00000-0x0000000005C1E000-memory.dmp
memory/868-151-0x00000000061C0000-0x00000000061F2000-memory.dmp
memory/1152-136-0x0000000007740000-0x00000000077DC000-memory.dmp
memory/1152-132-0x0000000000A10000-0x0000000000ADE000-memory.dmp
memory/1152-133-0x00000000059E0000-0x0000000005F84000-memory.dmp
memory/1152-134-0x00000000054D0000-0x0000000005562000-memory.dmp
memory/1152-135-0x0000000005470000-0x000000000547A000-memory.dmp
memory/1152-137-0x0000000008FF0000-0x0000000009056000-memory.dmp
memory/4652-150-0x00000000069E0000-0x0000000006BA2000-memory.dmp
memory/4652-146-0x0000000000400000-0x0000000000426000-memory.dmp