Analysis
- max time kernel
141s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
18/10/2024, 02:12
General
- Target 8a48ce8db35cc289949562cae156fce70a8e7f913b35515bce4cdc2741152b8b.exe
- Size 669KB
- Sample241018-cm66ws1bjf
- SHA256 8a48ce8db35cc289949562cae156fce70a8e7f913b35515bce4cdc2741152b8b
Malware Config
Extracted
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
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Username
-
Password
(lqKKXb5
Extracted
-
vipkeylogger
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
(lqKKXb5
-
Email to
Signatures
- VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
- 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 3 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
- Browser Information Discovery 1 TTPs
Enumerate browser information.
- 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\8a48ce8db35cc289949562cae156fce70a8e7f913b35515bce4cdc2741152b8b.exe"C:\Users\Admin\AppData\Local\Temp\8a48ce8db35cc289949562cae156fce70a8e7f913b35515bce4cdc2741152b8b.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\vrhZELiHpiub.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\vrhZELiHpiub" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEEB5.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\8a48ce8db35cc289949562cae156fce70a8e7f913b35515bce4cdc2741152b8b.exe"C:\Users\Admin\AppData\Local\Temp\8a48ce8db35cc289949562cae156fce70a8e7f913b35515bce4cdc2741152b8b.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\8a48ce8db35cc289949562cae156fce70a8e7f913b35515bce4cdc2741152b8b.exe"C:\Users\Admin\AppData\Local\Temp\8a48ce8db35cc289949562cae156fce70a8e7f913b35515bce4cdc2741152b8b.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
__PSScriptPolicyTest_yl1pulbb.5tp.ps1
tmpEEB5.tmp
memory/1196-56-0x0000000007400000-0x000000000741A000-memory.dmp
memory/1196-17-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/1196-66-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/1196-63-0x0000000007720000-0x0000000007728000-memory.dmp
memory/1196-62-0x0000000007740000-0x000000000775A000-memory.dmp
memory/1196-61-0x0000000007640000-0x0000000007654000-memory.dmp
memory/1196-60-0x0000000007630000-0x000000000763E000-memory.dmp
memory/1196-59-0x0000000007600000-0x0000000007611000-memory.dmp
memory/1196-58-0x0000000007680000-0x0000000007716000-memory.dmp
memory/1196-57-0x0000000007470000-0x000000000747A000-memory.dmp
memory/1196-15-0x0000000004B10000-0x0000000004B46000-memory.dmp
memory/1196-16-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/1196-18-0x00000000051B0000-0x00000000057D8000-memory.dmp
memory/1196-51-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/1196-19-0x0000000005020000-0x0000000005042000-memory.dmp
memory/1196-20-0x00000000050C0000-0x0000000005126000-memory.dmp
memory/1196-21-0x0000000005890000-0x00000000058F6000-memory.dmp
memory/1196-22-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/1196-54-0x0000000007A50000-0x00000000080CA000-memory.dmp
memory/1196-28-0x0000000005B00000-0x0000000005E54000-memory.dmp
memory/1196-36-0x00000000070B0000-0x00000000070E2000-memory.dmp
memory/1196-33-0x00000000060E0000-0x00000000060FE000-memory.dmp
memory/1196-34-0x0000000006170000-0x00000000061BC000-memory.dmp
memory/1196-37-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/1196-38-0x000000006F490000-0x000000006F4DC000-memory.dmp
memory/1196-48-0x0000000006690000-0x00000000066AE000-memory.dmp
memory/1196-49-0x00000000072F0000-0x0000000007393000-memory.dmp
memory/4360-3-0x00000000053E0000-0x0000000005472000-memory.dmp
memory/4360-8-0x00000000057E0000-0x00000000057F2000-memory.dmp
memory/4360-4-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/4360-2-0x00000000058B0000-0x0000000005E54000-memory.dmp
memory/4360-0-0x0000000074C4E000-0x0000000074C4F000-memory.dmp
memory/4360-55-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/4360-14-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/4360-10-0x000000000A840000-0x000000000A8DC000-memory.dmp
memory/4360-9-0x0000000008110000-0x000000000819C000-memory.dmp
memory/4360-1-0x0000000000930000-0x00000000009DE000-memory.dmp
memory/4360-7-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/4360-6-0x0000000074C4E000-0x0000000074C4F000-memory.dmp
memory/4360-5-0x0000000005480000-0x000000000548A000-memory.dmp
memory/4572-52-0x0000000000400000-0x0000000000448000-memory.dmp
memory/4572-67-0x0000000006EC0000-0x0000000007082000-memory.dmp
memory/4572-68-0x0000000006D60000-0x0000000006DB0000-memory.dmp
memory/4572-69-0x00000000075C0000-0x0000000007AEC000-memory.dmp