Analysis
- max time kernel
145s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
05/04/2022, 17:48
General
- Target Invoice.exe
- Size 433KB
- Sample220405-wdf3wsebgn
- SHA256 ddd66a333bedd6a64fa0f7b2daf36a0d9d738957e57af23aa130724e36aeb238
Malware Config
Extracted
-
snakekeylogger
-
https://api.telegram.org/bot5256606453:AAHfx8QrRODLdPbv8UwEufviQZo4c5kfjug/sendMessage?chat_id=1482312326
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 1 IoCs
- Disables RegEdit via registry modification
- Disables Task Manager via registry modification
- 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 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.
- Modifies registry key 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 12 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JDJUtQIULd.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JDJUtQIULd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE906.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
-
C:\Windows\SysWOW64\REG.exeREG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f3⤵
- Modifies registry key
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
Invoice.exe.log
tmpE906.tmp
memory/1416-151-0x00000000704F0000-0x000000007053C000-memory.dmp
memory/1416-146-0x00000000067D0000-0x00000000067EE000-memory.dmp
memory/1416-159-0x0000000007DF0000-0x0000000007DF8000-memory.dmp
memory/1416-158-0x0000000007E10000-0x0000000007E2A000-memory.dmp
memory/1416-138-0x0000000002E80000-0x0000000002EB6000-memory.dmp
memory/1416-157-0x0000000007D00000-0x0000000007D0E000-memory.dmp
memory/1416-141-0x0000000005A30000-0x0000000006058000-memory.dmp
memory/1416-156-0x0000000007D50000-0x0000000007DE6000-memory.dmp
memory/1416-155-0x0000000007B40000-0x0000000007B4A000-memory.dmp
memory/1416-154-0x0000000007AD0000-0x0000000007AEA000-memory.dmp
memory/1416-144-0x0000000005810000-0x0000000005832000-memory.dmp
memory/1416-145-0x0000000006110000-0x0000000006176000-memory.dmp
memory/1416-153-0x0000000008130000-0x00000000087AA000-memory.dmp
memory/1416-152-0x0000000006D80000-0x0000000006D9E000-memory.dmp
memory/1416-150-0x00000000079C0000-0x00000000079F2000-memory.dmp
memory/1416-149-0x0000000002FE5000-0x0000000002FE7000-memory.dmp
memory/1556-130-0x0000000000AA0000-0x0000000000B12000-memory.dmp
memory/1556-131-0x00000000059D0000-0x0000000005F74000-memory.dmp
memory/1556-134-0x0000000007D20000-0x0000000007DBC000-memory.dmp
memory/1556-132-0x00000000054C0000-0x0000000005552000-memory.dmp
memory/1556-133-0x0000000005660000-0x000000000566A000-memory.dmp
memory/1556-135-0x00000000082E0000-0x0000000008346000-memory.dmp
memory/4820-148-0x0000000006790000-0x0000000006952000-memory.dmp
memory/4820-142-0x0000000000400000-0x0000000000426000-memory.dmp