Analysis
- max time kernel
126s - max time network
141s - platform
windows10-2004_x64 - resource
win10v2004-20240802-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
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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 1 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.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 6 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\c79d8b7c07b992c6aa435e4101770f99.exe"C:\Users\Admin\AppData\Local\Temp\c79d8b7c07b992c6aa435e4101770f99.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- 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\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\tmpCD04.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⤵
-
-
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
c79d8b7c07b992c6aa435e4101770f99.exe.log
__PSScriptPolicyTest_mz2idres.arm.ps1
tmpCD04.tmp
memory/1808-10-0x000000000D1E0000-0x000000000D27C000-memory.dmp
memory/1808-3-0x0000000004DC0000-0x0000000004E52000-memory.dmp
memory/1808-5-0x0000000074A30000-0x00000000751E0000-memory.dmp
memory/1808-6-0x0000000007AF0000-0x0000000007B08000-memory.dmp
memory/1808-7-0x00000000060A0000-0x00000000060AE000-memory.dmp
memory/1808-8-0x00000000060B0000-0x00000000060C6000-memory.dmp
memory/1808-9-0x000000000A0D0000-0x000000000A138000-memory.dmp
memory/1808-28-0x0000000074A30000-0x00000000751E0000-memory.dmp
memory/1808-0-0x0000000074A3E000-0x0000000074A3F000-memory.dmp
memory/1808-4-0x0000000004E70000-0x0000000004E7A000-memory.dmp
memory/1808-1-0x00000000002F0000-0x00000000003CC000-memory.dmp
memory/1808-2-0x00000000052D0000-0x0000000005874000-memory.dmp
memory/3548-38-0x0000000074A30000-0x00000000751E0000-memory.dmp
memory/3548-20-0x0000000000400000-0x0000000000426000-memory.dmp
memory/3548-66-0x0000000006270000-0x00000000062C0000-memory.dmp
memory/3548-67-0x0000000006490000-0x0000000006652000-memory.dmp
memory/3548-68-0x0000000074A30000-0x00000000751E0000-memory.dmp
memory/4876-27-0x0000000005DD0000-0x0000000006124000-memory.dmp
memory/4876-55-0x0000000007730000-0x000000000774A000-memory.dmp
memory/4876-26-0x0000000074A30000-0x00000000751E0000-memory.dmp
memory/4876-24-0x0000000005660000-0x00000000056C6000-memory.dmp
memory/4876-21-0x0000000005550000-0x0000000005572000-memory.dmp
memory/4876-19-0x0000000074A30000-0x00000000751E0000-memory.dmp
memory/4876-39-0x00000000063F0000-0x000000000640E000-memory.dmp
memory/4876-40-0x0000000006480000-0x00000000064CC000-memory.dmp
memory/4876-42-0x0000000070F90000-0x0000000070FDC000-memory.dmp
memory/4876-41-0x00000000075C0000-0x00000000075F2000-memory.dmp
memory/4876-52-0x00000000069C0000-0x00000000069DE000-memory.dmp
memory/4876-53-0x0000000007600000-0x00000000076A3000-memory.dmp
memory/4876-54-0x0000000007D80000-0x00000000083FA000-memory.dmp
memory/4876-23-0x00000000055F0000-0x0000000005656000-memory.dmp
memory/4876-56-0x00000000077B0000-0x00000000077BA000-memory.dmp
memory/4876-57-0x00000000079B0000-0x0000000007A46000-memory.dmp
memory/4876-58-0x0000000007930000-0x0000000007941000-memory.dmp
memory/4876-59-0x0000000007960000-0x000000000796E000-memory.dmp
memory/4876-60-0x0000000007970000-0x0000000007984000-memory.dmp
memory/4876-61-0x0000000007A70000-0x0000000007A8A000-memory.dmp
memory/4876-62-0x0000000007A50000-0x0000000007A58000-memory.dmp
memory/4876-65-0x0000000074A30000-0x00000000751E0000-memory.dmp
memory/4876-18-0x0000000005720000-0x0000000005D48000-memory.dmp
memory/4876-17-0x0000000074A30000-0x00000000751E0000-memory.dmp
memory/4876-15-0x0000000002AF0000-0x0000000002B26000-memory.dmp