Analysis
- max time kernel
4294178s - max time network
145s - platform
windows7_x64 - resource
win7-20220311-en - submitted
13/04/2022, 09:03
General
- Target LKlxOcLiVTpxUWt.exe
- Size 739KB
- Sample220413-kz22pseaf9
- SHA256 1bdb0f035b8a4119d0dcf8f7753f2b89ddbf617e47883d15904d0ce96ca929a4
Malware Config
Extracted
-
snakekeylogger
-
https://api.telegram.org/bot5243953302:AAGFyxwcILx3S0Gq834R9NN-9m6enfFssYk/sendMessage?chat_id=5255359287
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 6 IoCs
- 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 3 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). 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.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\LKlxOcLiVTpxUWt.exe"C:\Users\Admin\AppData\Local\Temp\LKlxOcLiVTpxUWt.exe"1⤵
- Suspicious use of SetThreadContext
- 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\vbNqTYbXbucplL.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\vbNqTYbXbucplL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp38CC.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\LKlxOcLiVTpxUWt.exe"C:\Users\Admin\AppData\Local\Temp\LKlxOcLiVTpxUWt.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
tmp38CC.tmp
memory/1148-59-0x0000000075DF1000-0x0000000075DF3000-memory.dmp
memory/1148-75-0x00000000024A0000-0x00000000030EA000-memory.dmp
memory/1148-74-0x000000006E2F0000-0x000000006E89B000-memory.dmp
memory/1528-68-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1528-62-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1528-63-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1528-65-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1528-67-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1528-71-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1528-73-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1584-61-0x00000000050A0000-0x0000000005100000-memory.dmp
memory/1584-54-0x0000000000C60000-0x0000000000D20000-memory.dmp
memory/1584-56-0x0000000005EC0000-0x0000000005F60000-memory.dmp
memory/1584-55-0x0000000000570000-0x000000000057E000-memory.dmp