Analysis

  • max time kernel
    149s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 21:26

General

  • Target

    4ba804fe87926e6e07adf034d5980feda79cd9b905125655706f0e6292be6374.exe

  • Size

    90KB

  • MD5

    2db6a8e8e4c9432aa90e83ef551de267

  • SHA1

    109d89d39cfcc36fcaf0e4f2ebee1fb1a7354a0e

  • SHA256

    4ba804fe87926e6e07adf034d5980feda79cd9b905125655706f0e6292be6374

  • SHA512

    09340a05331f71a4adc7885f3a8f7ddd7e9525acd4dc49bad9ed6ccacfbc43bdd8c26334b054b64211e80fea7dfe04eaa8f3b526c9d8d8e184f78ca8fa883216

  • SSDEEP

    1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

Malware Config

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Detects Windows executables referencing non-Windows User-Agents 2 IoCs
  • ModiLoader Second Stage 2 IoCs
  • UPX dump on OEP (original entry point) 21 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 22 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ba804fe87926e6e07adf034d5980feda79cd9b905125655706f0e6292be6374.exe
    "C:\Users\Admin\AppData\Local\Temp\4ba804fe87926e6e07adf034d5980feda79cd9b905125655706f0e6292be6374.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2932
    • C:\Users\Admin\AppData\Local\Temp\4ba804fe87926e6e07adf034d5980feda79cd9b905125655706f0e6292be6374.exe
      "C:\Users\Admin\AppData\Local\Temp\4ba804fe87926e6e07adf034d5980feda79cd9b905125655706f0e6292be6374.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2944
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\VCCAI.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:556
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
          4⤵
          • Adds Run key to start application
          PID:1824
      • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1592
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1040
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:1868

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\VCCAI.bat

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

  • \Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

    Filesize

    90KB

    MD5

    480caf0351d9da6828dbce7a9a8dc1d8

    SHA1

    970abf1be37fe21c1894cda4ee2120e10023ade9

    SHA256

    db98c8f6dc085024f393a79a75f4fa36a042ab258651f2e588178854a6c289f9

    SHA512

    3cf8c0aed44d5b2e55e522a5ccfe782f9e6ccb962b5195625f57f6aa6883c459c8062a8d36a39538b8a7e711781fdb826ff23ff5d0f66cce4081baab55a98618

  • memory/1040-261-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1592-152-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1592-167-0x00000000003D0000-0x00000000003D1000-memory.dmp

    Filesize

    4KB

  • memory/1592-178-0x00000000003F0000-0x00000000003F1000-memory.dmp

    Filesize

    4KB

  • memory/1592-157-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/1592-212-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1592-247-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1868-254-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1868-262-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2932-59-0x00000000002E0000-0x00000000002E1000-memory.dmp

    Filesize

    4KB

  • memory/2932-78-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2932-81-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2932-79-0x0000000000320000-0x0000000000322000-memory.dmp

    Filesize

    8KB

  • memory/2932-92-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2932-82-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2932-77-0x0000000000404000-0x0000000000405000-memory.dmp

    Filesize

    4KB

  • memory/2932-87-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2932-69-0x0000000000300000-0x0000000000301000-memory.dmp

    Filesize

    4KB

  • memory/2932-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2932-39-0x0000000000290000-0x0000000000291000-memory.dmp

    Filesize

    4KB

  • memory/2932-27-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

  • memory/2932-108-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2932-15-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB

  • memory/2932-5-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2932-3-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2944-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2944-150-0x0000000002750000-0x00000000027A3000-memory.dmp

    Filesize

    332KB

  • memory/2944-149-0x0000000002750000-0x00000000027A3000-memory.dmp

    Filesize

    332KB

  • memory/2944-148-0x0000000002750000-0x00000000027A3000-memory.dmp

    Filesize

    332KB

  • memory/2944-151-0x0000000002750000-0x00000000027A3000-memory.dmp

    Filesize

    332KB

  • memory/2944-106-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2944-97-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2944-101-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2944-103-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2944-253-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2944-104-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2944-95-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2944-93-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB