Overview

overview

10

Static

static

10

231210-08-...fe.exe

windows7-x64

10

231210-08-...fe.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    24/07/2024, 12:12

Sharing

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General

  • Target
    231210-08-Glupteba-68a8fe.exe
  • Size 8.9MB
  • Sample240724-pc7e5aybrd
  • SHA256 8b0148744435d6298d2b73fe69019433ca6393e164af4e50709b7dda4b648891
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
gluptebaaspackv2discoverydropperevasionloaderpersistenceprivilege_escalationrootkittrojan

Malware Config

Signatures

  • Glupteba

    Glupteba is a modular loader written in Golang with various components.

    loaderdropperglupteba
  • Glupteba payload 9 IoCs
  • Windows security bypass 2 TTPs 7 IoCs
    evasiontrojan
  • Modifies boot configuration data using bcdedit 14 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Possible attempt to disable PatchGuard 2 TTPs

    Rootkits can use kernel patching to embed themselves in an operating system.

    evasion
  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

    aspackv2
  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 22 IoCs
  • Windows security modification 2 TTPs 7 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Manipulates WinMon driver. 1 IoCs

    Roottkits write to WinMon to hide PIDs from being detected.

    rootkitevasion
  • Manipulates WinMonFS driver. 1 IoCs

    Roottkits write to WinMonFS to hide directories/files from being detected.

    rootkitevasion
  • Drops file in System32 directory 2 IoCs
  • 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 Program Files directory 64 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

    persistenceprivilege_escalation
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 7 IoCs
    evasionspywaretrojan
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 64 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\231210-08-Glupteba-68a8fe.exe
    "C:\Users\Admin\AppData\Local\Temp\231210-08-Glupteba-68a8fe.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1820
    • C:\Users\Admin\AppData\Local\Temp\pCrEUV.exe
      C:\Users\Admin\AppData\Local\Temp\pCrEUV.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2504
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\044925c4.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1644
    • C:\Users\Admin\AppData\Local\Temp\231210-08-Glupteba-68a8fe.exe
      "C:\Users\Admin\AppData\Local\Temp\231210-08-Glupteba-68a8fe.exe"
      2⤵
      • Windows security bypass
      • Loads dropped DLL
      • Windows security modification
      • 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
      PID:2856
      • C:\Windows\TEMP\pCrEUV.exe
        C:\Windows\TEMP\pCrEUV.exe
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious use of WriteProcessMemory
        PID:2248
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2248 -s 772
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:1788
      • C:\Windows\system32\cmd.exe
        C:\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
        PID:1856
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • Modifies data under HKEY_USERS
          PID:1564
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Manipulates WinMon driver.
        • Manipulates WinMonFS driver.
        • System Location Discovery: System Language Discovery
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1540
        • C:\Windows\TEMP\pCrEUV.exe
          C:\Windows\TEMP\pCrEUV.exe
          4⤵
          • Executes dropped EXE
          • Drops file in System32 directory
          • Drops file in Program Files directory
          • Modifies data under HKEY_USERS
          PID:1692
        • C:\Windows\system32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2456
        • C:\Windows\system32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3032
          • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
            "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies system certificate store
            • Suspicious use of WriteProcessMemory
            PID:1480
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -create {71A3C7FC-F751-4982-AEC1-E958357E6813} -d "Windows Fast Mode" -application OSLOADER
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:1444
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} device partition=C:
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2472
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} osdevice partition=C:
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2092
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} systemroot \Windows
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2592
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} path \Windows\system32\osloader.exe
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2692
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} kernel ntkrnlmp.exe
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:1616
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} recoveryenabled 0
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2004
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} nx OptIn
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2628
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} nointegritychecks 1
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2052
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} inherit {bootloadersettings}
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:1984
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -displayorder {71A3C7FC-F751-4982-AEC1-E958357E6813} -addlast
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2704
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -timeout 0
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2604
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -default {71A3C7FC-F751-4982-AEC1-E958357E6813}
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:1660
          • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:1264
          • C:\Windows\system32\bcdedit.exe
            C:\Windows\Sysnative\bcdedit.exe /v
            4⤵
            • Modifies boot configuration data using bcdedit
            PID:2588
          • C:\Users\Admin\AppData\Local\Temp\csrss\dsefix.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\dsefix.exe
            4⤵
            • Executes dropped EXE
            PID:2832
          • C:\Windows\system32\schtasks.exe
            schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
            4⤵
            • Scheduled Task/Job: Scheduled Task
            PID:1320
    • C:\Windows\system32\makecab.exe
      "C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20240724121214.log C:\Windows\Logs\CBS\CbsPersist_20240724121214.cab
      1⤵
      • Drops file in Windows directory
      PID:2776

    Network

          MITRE ATT&CK Enterprise v15

          Reconnaissance

          Resource Development

          Initial Access

          Execution

          Command and Scripting Interpreter

          1
          T1059

          Scheduled Task/Job

          1
          T1053

          Scheduled Task

          1
          T1053.005

          Persistence

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Create or Modify System Process

          1
          T1543

          Windows Service

          1
          T1543.003

          Event Triggered Execution

          1
          T1546

          Netsh Helper DLL

          1
          T1546.007

          Scheduled Task/Job

          1
          T1053

          Scheduled Task

          1
          T1053.005

          Privilege Escalation

          Boot or Logon Autostart Execution

          1
          T1547

          Registry Run Keys / Startup Folder

          1
          T1547.001

          Create or Modify System Process

          1
          T1543

          Windows Service

          1
          T1543.003

          Event Triggered Execution

          1
          T1546

          Netsh Helper DLL

          1
          T1546.007

          Scheduled Task/Job

          1
          T1053

          Scheduled Task

          1
          T1053.005

          Defense Evasion

          Impair Defenses

          4
          T1562

          Disable or Modify System Firewall

          1
          T1562.004

          Disable or Modify Tools

          2
          T1562.001

          Modify Registry

          4
          T1112

          Subvert Trust Controls

          1
          T1553

          Install Root Certificate

          1
          T1553.004

          Credential Access

          Discovery

          Query Registry

          2
          T1012

          System Information Discovery

          2
          T1082

          System Location Discovery

          1
          T1614

          System Language Discovery

          1
          T1614.001

          Lateral Movement

          Collection

          Command and Control

          Exfiltration

          Impact

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          LogTransport2.exe
          • Path C:\Program Files (x86)\Adobe\Reader 9.0\Reader\LogTransport2.exe
          • Size 272KB
          • SHA256 2c51f559a647e38ffd93f9cf4e49142d48d7ed4af490149cd4aa76c65e1209fe
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          Uninstall.exe
          • Path C:\Program Files\7-Zip\Uninstall.exe
          • Size 31KB
          • SHA256 2b9949f322cd40c7d60da169c6d37980af8a3178475203997ec6ee995277c86b
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          k2[1].rar
          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\69P6875H\k2[1].rar
          • Size 4B
          • SHA256 b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c
          • MD5 SHA1 SHA512
          Submit Download

          044925c4.bat
          • Path C:\Users\Admin\AppData\Local\Temp\044925c4.bat
          • Size 187B
          • SHA256 f9032151a7966e4b49c8d38f7652b8263f5e25e2b1c77be037fac36a0d441c97
          • MD5 SHA1 SHA512
          Submit Download

          56130C49.exe
          • Path C:\Users\Admin\AppData\Local\Temp\56130C49.exe
          • Size 4B
          • SHA256 9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31
          • MD5 SHA1 SHA512
          Submit Download

          download.error
          • Path C:\Users\Admin\AppData\Local\Temp\Symbols\ntkrnlmp.pdb\AAF33CF37E194E98957768CF9C02DE8E2\download.error
          • Size 8.3MB
          • SHA256 3a72dbedc490773f90e241c8b3b839383a63ce36426a4f330a0f754b14b4d23e
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          download.error
          • Path C:\Users\Admin\AppData\Local\Temp\Symbols\winload_prod.pdb\768283CA443847FB8822F9DB1F36ECC51\download.error
          • Size 492KB
          • SHA256 feb122b7916a1e62a7a6ae8d25ea48a2efc86f6e6384f5526e18ffbfc5f5ff71
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          ntkrnlmp.exe
          • Path C:\Users\Admin\AppData\Local\Temp\ntkrnlmp.exe
          • Size 5.3MB
          • SHA256 c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          dsefix.exe
          • Path \Users\Admin\AppData\Local\Temp\csrss\dsefix.exe
          • Size 94KB
          • SHA256 414035cc96d8bcc87ed173852a839ffbb45882a98c7a6f7b821e1668891deef0
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          injector.exe
          • Path \Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
          • Size 281KB
          • SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          patch.exe
          • Path \Users\Admin\AppData\Local\Temp\csrss\patch.exe
          • Size 1.7MB
          • SHA256 f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          dbghelp.dll
          • Path \Users\Admin\AppData\Local\Temp\dbghelp.dll
          • Size 1.5MB
          • SHA256 6e58fcf4d763022b1f79a3c448eb2ebd8ad1c15df3acf58416893f1cbc699026
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          osloader.exe
          • Path \Users\Admin\AppData\Local\Temp\osloader.exe
          • Size 591KB
          • SHA256 b74cd24cef07f0226e7b777f7862943faee4cf288178b423d5344b0769dc15d4
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          pCrEUV.exe
          • Path \Users\Admin\AppData\Local\Temp\pCrEUV.exe
          • Size 15KB
          • SHA256 4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          symsrv.dll
          • Path \Users\Admin\AppData\Local\Temp\symsrv.dll
          • Size 163KB
          • SHA256 e11e0f7804bfc485b19103a940be3d382f31c1378caca0c63076e27797d7553f
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          csrss.exe
          • Path \Windows\rss\csrss.exe
          • Size 8.9MB
          • SHA256 8b0148744435d6298d2b73fe69019433ca6393e164af4e50709b7dda4b648891
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          memory/1480-84-0x0000000140000000-0x00000001405E8000-memory.dmp
          Download

          memory/1480-93-0x0000000140000000-0x00000001405E8000-memory.dmp
          Download

          memory/1540-53-0x0000000000020000-0x0000000000029000-memory.dmp
          Download

          memory/1540-146-0x0000000000400000-0x0000000000D21000-memory.dmp
          Download

          memory/1540-54-0x0000000000020000-0x0000000000029000-memory.dmp
          Download

          memory/1540-52-0x0000000000400000-0x0000000000D21000-memory.dmp
          Download

          memory/1692-57-0x0000000000110000-0x0000000000119000-memory.dmp
          Download

          memory/1692-60-0x0000000000110000-0x0000000000119000-memory.dmp
          Download

          memory/1820-22-0x0000000000400000-0x0000000000D21000-memory.dmp
          Download

          memory/1820-12-0x00000000003E0000-0x00000000003E9000-memory.dmp
          Download

          memory/1820-10-0x00000000003E0000-0x00000000003E9000-memory.dmp
          Download

          memory/1820-9-0x0000000000400000-0x0000000000D21000-memory.dmp
          Download

          memory/2248-34-0x0000000001280000-0x0000000001289000-memory.dmp
          Download

          memory/2248-27-0x0000000001280000-0x0000000001289000-memory.dmp
          Download

          memory/2504-130-0x00000000003E0000-0x00000000003E9000-memory.dmp
          Download

          memory/2504-11-0x00000000003E0000-0x00000000003E9000-memory.dmp
          Download

          memory/2856-25-0x0000000001280000-0x0000000001289000-memory.dmp
          Download

          memory/2856-51-0x000000002C130000-0x000000002CA51000-memory.dmp
          Download

          memory/2856-28-0x0000000000400000-0x0000000000D21000-memory.dmp
          Download

          memory/2856-26-0x0000000001280000-0x0000000001289000-memory.dmp
          Download

          memory/2856-38-0x000000002C130000-0x000000002CA51000-memory.dmp
          Download

          memory/2856-58-0x0000000000400000-0x0000000000D21000-memory.dmp
          Download