Analysis
- max time kernel
85s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
22/04/2023, 10:46
General
- Target specifications.exe
- Size 609KB
- Sample230422-mtzeqsed63
- SHA256 fe2e43ede9f445a41bd41df5d99beeaee9aad9e0684ceb148dd81c1f0e7db616
Malware Config
Extracted
-
snakekeylogger
-
Protocol
smtp
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Host
valleycountysar.org
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Port
26
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Username
-
Password
}eQA)VL2!$V}
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.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\specifications.exe"C:\Users\Admin\AppData\Local\Temp\specifications.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\zcYYiVl.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\zcYYiVl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2A5C.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\specifications.exe"C:\Users\Admin\AppData\Local\Temp\specifications.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
specifications.exe.log
__PSScriptPolicyTest_y3yfpkyz.za5.ps1
tmp2A5C.tmp
memory/2496-190-0x0000000005030000-0x0000000005040000-memory.dmp
memory/2496-147-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2496-164-0x0000000005030000-0x0000000005040000-memory.dmp
memory/2496-189-0x0000000006230000-0x00000000063F2000-memory.dmp
memory/3348-136-0x0000000005040000-0x000000000504A000-memory.dmp
memory/3348-139-0x0000000006D60000-0x0000000006DFC000-memory.dmp
memory/3348-138-0x0000000005000000-0x0000000005010000-memory.dmp
memory/3348-137-0x0000000005000000-0x0000000005010000-memory.dmp
memory/3348-133-0x00000000005E0000-0x000000000067E000-memory.dmp
memory/3348-135-0x00000000050A0000-0x0000000005132000-memory.dmp
memory/3348-134-0x0000000005650000-0x0000000005BF4000-memory.dmp
memory/4032-159-0x0000000005920000-0x0000000005986000-memory.dmp
memory/4032-178-0x0000000002E00000-0x0000000002E10000-memory.dmp
memory/4032-152-0x0000000005610000-0x0000000005632000-memory.dmp
memory/4032-149-0x0000000002E00000-0x0000000002E10000-memory.dmp
memory/4032-148-0x0000000002E00000-0x0000000002E10000-memory.dmp
memory/4032-165-0x00000000066E0000-0x00000000066FE000-memory.dmp
memory/4032-166-0x0000000006CB0000-0x0000000006CE2000-memory.dmp
memory/4032-167-0x0000000070840000-0x000000007088C000-memory.dmp
memory/4032-177-0x0000000006C80000-0x0000000006C9E000-memory.dmp
memory/4032-153-0x00000000058B0000-0x0000000005916000-memory.dmp
memory/4032-179-0x000000007EEC0000-0x000000007EED0000-memory.dmp
memory/4032-180-0x0000000008030000-0x00000000086AA000-memory.dmp
memory/4032-181-0x00000000079E0000-0x00000000079FA000-memory.dmp
memory/4032-182-0x0000000007A50000-0x0000000007A5A000-memory.dmp
memory/4032-183-0x0000000007C60000-0x0000000007CF6000-memory.dmp
memory/4032-184-0x0000000007C10000-0x0000000007C1E000-memory.dmp
memory/4032-185-0x0000000007D20000-0x0000000007D3A000-memory.dmp
memory/4032-186-0x0000000007D00000-0x0000000007D08000-memory.dmp
memory/4032-146-0x00000000059C0000-0x0000000005FE8000-memory.dmp
memory/4032-144-0x0000000002DB0000-0x0000000002DE6000-memory.dmp