Analysis

  • max time kernel
    149s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 03:42

General

  • Target

    d264961e6bf029b4a3885e30254bc242f219694f5f426962fce57e16e8b83ab1.exe

  • Size

    90KB

  • MD5

    8003dd2d510d15bf88167bb253a1778f

  • SHA1

    a031cc44525573c2f1a8f3a90016e6cea9bc78e8

  • SHA256

    d264961e6bf029b4a3885e30254bc242f219694f5f426962fce57e16e8b83ab1

  • SHA512

    455d43894fa1b700e22337cf8a1be55c91f197be6f90d2fa5099047a2638f7fbbd9f14abe6c9107746fccfede28d562770b7a17dd18f503bb928266605159df8

  • 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) 18 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 19 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\d264961e6bf029b4a3885e30254bc242f219694f5f426962fce57e16e8b83ab1.exe
    "C:\Users\Admin\AppData\Local\Temp\d264961e6bf029b4a3885e30254bc242f219694f5f426962fce57e16e8b83ab1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2980
    • C:\Users\Admin\AppData\Local\Temp\d264961e6bf029b4a3885e30254bc242f219694f5f426962fce57e16e8b83ab1.exe
      "C:\Users\Admin\AppData\Local\Temp\d264961e6bf029b4a3885e30254bc242f219694f5f426962fce57e16e8b83ab1.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:916
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\CGVVI.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3044
        • 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:1640
      • 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:1048
        • 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:320
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:580

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CGVVI.bat
    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    90KB

    MD5

    ebb74437f5de075014fc0444f64b5bdd

    SHA1

    27a565161f563c3a26a329e81e49dacd849fd4c5

    SHA256

    36824e7f170cd204aac148ba4d8671a7d7efa9b7c5060faf5a14c5b90ba6815f

    SHA512

    171b9b68a38a68411ccd37ee0731189efa8de7ef694481d2443445c7d2d3c0e425c9bc465e6fe0507b50d09584f2be59eb37862e3108242c43eaf23a36dc49b8

  • memory/320-255-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/580-256-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/580-244-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/916-248-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/916-145-0x0000000002930000-0x0000000002983000-memory.dmp
    Filesize

    332KB

  • memory/916-146-0x0000000002930000-0x0000000002983000-memory.dmp
    Filesize

    332KB

  • memory/916-144-0x0000000002930000-0x0000000002983000-memory.dmp
    Filesize

    332KB

  • memory/916-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/916-90-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/916-92-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/916-103-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/916-94-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/916-101-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/916-100-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/916-98-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1048-152-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/1048-147-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/1048-246-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/1048-207-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/1048-173-0x0000000000270000-0x0000000000271000-memory.dmp
    Filesize

    4KB

  • memory/1048-162-0x0000000000250000-0x0000000000251000-memory.dmp
    Filesize

    4KB

  • memory/2980-89-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2980-41-0x0000000000320000-0x0000000000321000-memory.dmp
    Filesize

    4KB

  • memory/2980-29-0x0000000000300000-0x0000000000301000-memory.dmp
    Filesize

    4KB

  • memory/2980-25-0x0000000000404000-0x0000000000405000-memory.dmp
    Filesize

    4KB

  • memory/2980-0-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2980-104-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2980-79-0x00000000003E0000-0x00000000003E2000-memory.dmp
    Filesize

    8KB

  • memory/2980-71-0x00000000003C0000-0x00000000003C1000-memory.dmp
    Filesize

    4KB

  • memory/2980-26-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2980-61-0x00000000003A0000-0x00000000003A1000-memory.dmp
    Filesize

    4KB

  • memory/2980-15-0x0000000000250000-0x0000000000251000-memory.dmp
    Filesize

    4KB

  • memory/2980-3-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/2980-5-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB