Analysis
-
max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
-
submitted
01-11-2024 15:42
General
-
Target
40d22787e79f76e54bfeb359822a4b3ad8e6bef6.exe
-
Size
4.1MB
-
MD5
256506e20fe6bddbe08403debd4c39cc
-
SHA1
40d22787e79f76e54bfeb359822a4b3ad8e6bef6
-
SHA256
81b8d673c51e5f98a4690c11f4f4f156349b2ab850733cbac4119c7c6ec3d804
-
SHA512
0a626cc31e90a755706953fbffc6f9e4cbdb1a001c2688589594094f848dea5543b0b7fcbf55e983861f477f83e13c87bd165c5085514690f700b239f7543669
-
SSDEEP
98304:ozPUPTTQjdPp+CX8gA6IfphzteABldSZy:oLYTTQBPZ+fpbRky
Malware Config
Signatures
-
Glupteba
Glupteba is a modular loader written in Golang with various components.
-
Glupteba family
-
Glupteba payload 20 IoCs
-
Modifies Windows Firewall 2 TTPs 1 IoCs
-
Executes dropped EXE 2 IoCs
-
Adds Run key to start application 2 TTPs 2 IoCs
-
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
-
Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
-
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
-
Drops file in Windows directory 2 IoCs
-
Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
-
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.
-
Modifies data under HKEY_USERS 64 IoCs
-
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
-
Suspicious use of AdjustPrivilegeToken 3 IoCs
-
Suspicious use of WriteProcessMemory 9 IoCs
-
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\40d22787e79f76e54bfeb359822a4b3ad8e6bef6.exe"C:\Users\Admin\AppData\Local\Temp\40d22787e79f76e54bfeb359822a4b3ad8e6bef6.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Local\Temp\40d22787e79f76e54bfeb359822a4b3ad8e6bef6.exe"C:\Users\Admin\AppData\Local\Temp\40d22787e79f76e54bfeb359822a4b3ad8e6bef6.exe"2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
-
-
-
C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵
-
-
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Scheduled Task/Job: Scheduled Task
-
-
-
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
-
Filesize
4.1MB
MD5256506e20fe6bddbe08403debd4c39cc
SHA140d22787e79f76e54bfeb359822a4b3ad8e6bef6
SHA25681b8d673c51e5f98a4690c11f4f4f156349b2ab850733cbac4119c7c6ec3d804
SHA5120a626cc31e90a755706953fbffc6f9e4cbdb1a001c2688589594094f848dea5543b0b7fcbf55e983861f477f83e13c87bd165c5085514690f700b239f7543669
-
Filesize
3.9MB
-
Filesize
8.5MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.5MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.6MB
-
Filesize
8.6MB