Analysis
- max time kernel
119s - max time network
125s - platform
windows7_x64 - resource
win7-20240705-en - resource tags
- submitted
09/08/2024, 09:09
General
- Target c79d8b7c07b992c6aa435e4101770f99.exe
- Size 860KB
- Sample240809-k4tk5ayenp
- SHA256 50e59bcfb26bd248b9d979be95aba9a034cc4481bd592c83f26fef033f8f83f0
Malware Config
Extracted
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
yUiavQX8
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
yUiavQX8
-
Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 5 IoCs
- Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- 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).
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 3 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\c79d8b7c07b992c6aa435e4101770f99.exe"C:\Users\Admin\AppData\Local\Temp\c79d8b7c07b992c6aa435e4101770f99.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- 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\YTGPfoyKQaU.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YTGPfoyKQaU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD6CF.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\c79d8b7c07b992c6aa435e4101770f99.exe"C:\Users\Admin\AppData\Local\Temp\c79d8b7c07b992c6aa435e4101770f99.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
tmpD6CF.tmp
memory/2712-22-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2712-21-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2712-23-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2712-18-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2712-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2712-16-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2712-12-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2712-14-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2976-2-0x00000000749B0000-0x000000007509E000-memory.dmp
memory/2976-6-0x0000000004DB0000-0x0000000004E18000-memory.dmp
memory/2976-1-0x0000000000BC0000-0x0000000000C9C000-memory.dmp
memory/2976-0-0x00000000749BE000-0x00000000749BF000-memory.dmp
memory/2976-5-0x0000000000B10000-0x0000000000B26000-memory.dmp
memory/2976-4-0x0000000000A40000-0x0000000000A4E000-memory.dmp
memory/2976-3-0x0000000000B90000-0x0000000000BA8000-memory.dmp
memory/2976-24-0x00000000749B0000-0x000000007509E000-memory.dmp