Analysis

  • max time kernel
    119s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10-11-2024 22:11

General

  • Target

    47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe

  • Size

    90KB

  • MD5

    b25c07ed6129a94e5934f0e213734430

  • SHA1

    4bbbf5f7e94b13c34cb2a5870780c761c2d101aa

  • SHA256

    47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0ea

  • SHA512

    291d73c2db07c29eeb72c1085ffc6174534875440bdfdcae78d4e7430daeae1dda2393767d370627a8d610860cf23c3c483216b3833b6236c85be1826f944574

  • 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.

  • Modiloader family
  • ModiLoader Second Stage 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 23 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • 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\47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe
    "C:\Users\Admin\AppData\Local\Temp\47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2388
    • C:\Users\Admin\AppData\Local\Temp\47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe
      "C:\Users\Admin\AppData\Local\Temp\47c8c3af541350cd2b1535d44811b3b5fd570648a728fdcbfd8f425faf09d0eaN.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2924
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\AVSRV.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2000
        • 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
          • System Location Discovery: System Language Discovery
          PID:1636
      • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:388
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1284
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:2112

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    8dec23d0d69068ac83b8d4fd3fc74992

    SHA1

    805b4229e4690ca371e2580050fd873519086501

    SHA256

    9919e569759975c21de858db24ca924ad58b415eb67abf0d3d61334005c3dd25

    SHA512

    7fee01aadf2ac9f1917b4f890b4da4c3071d80ad2e1ed250be0786aaba672754cc47d6fb2fd5106512d6eab3ce74ec44896f6cfb2548494cee72af83ecc4392b

  • memory/388-160-0x00000000001D0000-0x00000000001D1000-memory.dmp

    Filesize

    4KB

  • memory/388-219-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/388-181-0x0000000000290000-0x0000000000291000-memory.dmp

    Filesize

    4KB

  • memory/388-170-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

  • memory/388-255-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1284-263-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2112-264-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2112-252-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2388-15-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB

  • memory/2388-82-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2388-80-0x0000000000390000-0x0000000000392000-memory.dmp

    Filesize

    8KB

  • memory/2388-83-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2388-79-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2388-85-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2388-5-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2388-71-0x0000000000370000-0x0000000000371000-memory.dmp

    Filesize

    4KB

  • memory/2388-155-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2388-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2388-103-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2388-61-0x00000000002D0000-0x00000000002D1000-memory.dmp

    Filesize

    4KB

  • memory/2388-59-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2388-40-0x0000000000290000-0x0000000000291000-memory.dmp

    Filesize

    4KB

  • memory/2388-28-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

  • memory/2388-25-0x0000000000404000-0x0000000000405000-memory.dmp

    Filesize

    4KB

  • memory/2388-3-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2924-95-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2924-151-0x0000000003250000-0x00000000032A3000-memory.dmp

    Filesize

    332KB

  • memory/2924-150-0x0000000003250000-0x00000000032A3000-memory.dmp

    Filesize

    332KB

  • memory/2924-149-0x0000000003250000-0x00000000032A3000-memory.dmp

    Filesize

    332KB

  • memory/2924-135-0x0000000003250000-0x00000000032A3000-memory.dmp

    Filesize

    332KB

  • memory/2924-156-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2924-157-0x0000000003250000-0x00000000032A3000-memory.dmp

    Filesize

    332KB

  • memory/2924-107-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2924-108-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2924-218-0x0000000003250000-0x00000000032A3000-memory.dmp

    Filesize

    332KB

  • memory/2924-215-0x0000000003250000-0x00000000032A3000-memory.dmp

    Filesize

    332KB

  • memory/2924-109-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2924-93-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2924-251-0x0000000003250000-0x00000000032A3000-memory.dmp

    Filesize

    332KB

  • memory/2924-262-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2924-97-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2924-99-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2924-106-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2924-101-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB