Analysis
-
max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
28-01-2025 11:33
Static task
static1
Behavioral task
behavioral1
Sample
2201202559658_2835,pdf.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2201202559658_2835,pdf.exe
Resource
win10v2004-20241007-en
General
-
Target
2201202559658_2835,pdf.exe
-
Size
776KB
-
MD5
63e8201de5c2dd6ae511ef05137cec09
-
SHA1
b80b8f6220ea23f0ecc549d2c14c621779bf0641
-
SHA256
b371f30f8a988c595f16418783ce61a2c5ca92cd94e76f9923f0b41b06d10c46
-
SHA512
aa1f92f89264a4278b904422ae29cca5f1832678879bb37273a906f4d4517d47aceca2922d6e2abaacac5dcda8b51ec9c38bd28f66e98e3a26f0f4e5a848e2a1
-
SSDEEP
24576:8kUKu306jr2wcjWKLafXP5NqekRCtYhM:89tILaaekRp
Malware Config
Extracted
vipkeylogger
Protocol: smtp- Host:
mail.puragenicindia.com - Port:
587 - Username:
[email protected] - Password:
Tt83LN,]V)@{ - Email To:
[email protected]
Signatures
-
VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
-
Vipkeylogger family
-
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.
pid Process 2980 powershell.exe -
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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2201202559658_2835,pdf.exe Key opened \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2201202559658_2835,pdf.exe Key opened \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2201202559658_2835,pdf.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 checkip.dyndns.org 8 reallyfreegeoip.org 9 reallyfreegeoip.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2524 set thread context of 2540 2524 2201202559658_2835,pdf.exe 34 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2201202559658_2835,pdf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2201202559658_2835,pdf.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 2524 2201202559658_2835,pdf.exe 2524 2201202559658_2835,pdf.exe 2540 2201202559658_2835,pdf.exe 2980 powershell.exe 2540 2201202559658_2835,pdf.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2524 2201202559658_2835,pdf.exe Token: SeDebugPrivilege 2540 2201202559658_2835,pdf.exe Token: SeDebugPrivilege 2980 powershell.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2524 wrote to memory of 2980 2524 2201202559658_2835,pdf.exe 31 PID 2524 wrote to memory of 2980 2524 2201202559658_2835,pdf.exe 31 PID 2524 wrote to memory of 2980 2524 2201202559658_2835,pdf.exe 31 PID 2524 wrote to memory of 2980 2524 2201202559658_2835,pdf.exe 31 PID 2524 wrote to memory of 2056 2524 2201202559658_2835,pdf.exe 33 PID 2524 wrote to memory of 2056 2524 2201202559658_2835,pdf.exe 33 PID 2524 wrote to memory of 2056 2524 2201202559658_2835,pdf.exe 33 PID 2524 wrote to memory of 2056 2524 2201202559658_2835,pdf.exe 33 PID 2524 wrote to memory of 2540 2524 2201202559658_2835,pdf.exe 34 PID 2524 wrote to memory of 2540 2524 2201202559658_2835,pdf.exe 34 PID 2524 wrote to memory of 2540 2524 2201202559658_2835,pdf.exe 34 PID 2524 wrote to memory of 2540 2524 2201202559658_2835,pdf.exe 34 PID 2524 wrote to memory of 2540 2524 2201202559658_2835,pdf.exe 34 PID 2524 wrote to memory of 2540 2524 2201202559658_2835,pdf.exe 34 PID 2524 wrote to memory of 2540 2524 2201202559658_2835,pdf.exe 34 PID 2524 wrote to memory of 2540 2524 2201202559658_2835,pdf.exe 34 PID 2524 wrote to memory of 2540 2524 2201202559658_2835,pdf.exe 34 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2201202559658_2835,pdf.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2201202559658_2835,pdf.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2201202559658_2835,pdf.exe"C:\Users\Admin\AppData\Local\Temp\2201202559658_2835,pdf.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2524 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\2201202559658_2835,pdf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2980
-
-
C:\Users\Admin\AppData\Local\Temp\2201202559658_2835,pdf.exe"C:\Users\Admin\AppData\Local\Temp\2201202559658_2835,pdf.exe"2⤵PID:2056
-
-
C:\Users\Admin\AppData\Local\Temp\2201202559658_2835,pdf.exe"C:\Users\Admin\AppData\Local\Temp\2201202559658_2835,pdf.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
PID:2540
-
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2