Overview

overview

10

Static

static

3

c68e4b2c97...c3.exe

windows7-x64

8

c68e4b2c97...c3.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    83s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/03/2024, 18:18

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General

  • Target

    c68e4b2c97445f0cec20e02919bf6ec3.exe

  • Size

    144KB

  • MD5

    c68e4b2c97445f0cec20e02919bf6ec3

  • SHA1

    9ad07546a947c4f6764060517410741ba4544aad

  • SHA256

    df755cbf04518781035d9b7a77e16204b9308e966b797f8dcc731c653a36dc40

  • SHA512

    3fe4c455ea9b907d13555af544b21ee2c00451af7693d96264621340a529cffc94ee96933e091490a71d7a9fabf371c267c5f7520052a76d4679fd6574c6cf1d

  • SSDEEP

    1536:fDI37DqZ0K4V+yW7JNY0UiURc12H0fjXUJrHSjCXo2HK5vsP+NDMrsrHV2zv/AXC:bI37M6yJNYNuaHSjCXo2HK50PvsQzv

Score
10/10
persistence

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
    persistence
  • Drops file in Drivers directory 1 IoCs
  • Modifies AppInit DLL entries 2 TTPs
    persistence
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 1 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 11 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 18 IoCs
  • Modifies registry class 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 38 IoCs
  • Suspicious use of FindShellTrayWindow 9 IoCs
  • Suspicious use of SendNotifyMessage 11 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c68e4b2c97445f0cec20e02919bf6ec3.exe
    "C:\Users\Admin\AppData\Local\Temp\c68e4b2c97445f0cec20e02919bf6ec3.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Drivers directory
    • Checks computer location settings
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Windows\SysWOW64\wbem\WMIC.exe
      "C:\Windows\System32\wbem\WMIC.exe" path win32_terminalservicesetting where (__Class!="") call setallowtsconnections 1
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4740
  • C:\Windows\system32\dwm.exe
    "dwm.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:3024
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1964
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Modifies Installed Components in the registry
      • Enumerates connected drives
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3384
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
      PID:784
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
        PID:4924

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Windows\SysWOW64\nvaux32.dll
              Filesize

              272KB

              MD5

              3595abb538a67bf0ddad66e78e5f5d80

              SHA1

              e7910bc4b4859fe81b7ff4a620ff2cf30aee74f8

              SHA256

              a0f518bcc59a6cf60d9ed8536a237ed9fa6012a63c091e90f761bae7755e2770

              SHA512

              d654098f9d2fad41a18a620b258578c4a92386d47a4948bf9e544ae41449a537aadadd5bce57c6f92bba6489713d0b62666868584b0f7d3a441f5803e707f8af

              Download Submit

            • memory/1640-31-0x0000000002870000-0x0000000002879000-memory.dmp

              Filesize

              36KB

              Download

            • memory/1640-43-0x0000000002AD0000-0x0000000002AD9000-memory.dmp

              Filesize

              36KB

              Download

            • memory/1640-3-0x0000000000400000-0x000000000044C000-memory.dmp

              Filesize

              304KB

              Download

            • memory/1640-2-0x0000000002050000-0x0000000002071000-memory.dmp

              Filesize

              132KB

              Download

            • memory/1640-18-0x0000000000400000-0x000000000044C000-memory.dmp

              Filesize

              304KB

              Download

            • memory/1640-20-0x00000000023B0000-0x00000000023C4000-memory.dmp

              Filesize

              80KB

              Download

            • memory/1640-26-0x0000000002850000-0x0000000002863000-memory.dmp

              Filesize

              76KB

              Download

            • memory/1640-0-0x0000000000400000-0x000000000044C000-memory.dmp

              Filesize

              304KB

              Download

            • memory/1640-1-0x0000000000400000-0x000000000044C000-memory.dmp

              Filesize

              304KB

              Download

            • memory/1640-48-0x0000000002AD0000-0x0000000002AD9000-memory.dmp

              Filesize

              36KB

              Download

            • memory/1640-37-0x0000000002880000-0x0000000002889000-memory.dmp

              Filesize

              36KB

              Download

            • memory/1640-49-0x0000000002AD0000-0x0000000002AD9000-memory.dmp

              Filesize

              36KB

              Download

            • memory/1640-50-0x00000000023B0000-0x00000000023C4000-memory.dmp

              Filesize

              80KB

              Download

            • memory/3384-65-0x0000000004140000-0x0000000004141000-memory.dmp

              Filesize

              4KB

              Download

            • memory/4924-73-0x000002220C760000-0x000002220C780000-memory.dmp

              Filesize

              128KB

              Download

            • memory/4924-81-0x000002220CD20000-0x000002220CD40000-memory.dmp

              Filesize

              128KB

              Download

            • memory/4924-82-0x000002220C710000-0x000002220C730000-memory.dmp

              Filesize

              128KB

              Download