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Analysis

  • max time kernel
    149s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    21/12/2024, 02:55 UTC

General

  • Target

    999b3e7f9a470dbd00a8d452f5c66a6df88648b8e279dbcaaa1dea8c78d06655.exe

  • Size

    90KB

  • MD5

    4055189bf09c4a737a87f84ba1db0064

  • SHA1

    3312c0f0b3e1d3b3578837cc734cf6631588c784

  • SHA256

    999b3e7f9a470dbd00a8d452f5c66a6df88648b8e279dbcaaa1dea8c78d06655

  • SHA512

    c3a009aa17cff60df32be5ae115f825afc478cc44cf360a5226b8485396f29465865ac5653ef710b5f4cc56389bc5f961ba5838c3fb3ecd87d9fdfd780a14f42

  • SSDEEP

    1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDh:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3T

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\999b3e7f9a470dbd00a8d452f5c66a6df88648b8e279dbcaaa1dea8c78d06655.exe
    "C:\Users\Admin\AppData\Local\Temp\999b3e7f9a470dbd00a8d452f5c66a6df88648b8e279dbcaaa1dea8c78d06655.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2596
    • C:\Users\Admin\AppData\Local\Temp\999b3e7f9a470dbd00a8d452f5c66a6df88648b8e279dbcaaa1dea8c78d06655.exe
      "C:\Users\Admin\AppData\Local\Temp\999b3e7f9a470dbd00a8d452f5c66a6df88648b8e279dbcaaa1dea8c78d06655.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2320
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\WDEBJ.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3056
        • 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:1980
      • 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:3060
        • 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:2084
        • 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:1572

Network

  • flag-us
    DNS
    billabong4102.no-ip.biz
    csrsll.exe
    Remote address:
    8.8.8.8:53
    Request
    billabong4102.no-ip.biz
    IN A
    Response
No results found
  • 8.8.8.8:53
    billabong4102.no-ip.biz
    dns
    csrsll.exe
    69 B
    129 B
    1
    1

    DNS Request

    billabong4102.no-ip.biz

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    37f163063a45448bafd995ccec130fcc

    SHA1

    d80b7df0c3ea78dfbe3b33e487ef53f164c89769

    SHA256

    71cedae896e3daa9830ce95ea482681aa52c07a26a1e7748ddb74aac9a3a5664

    SHA512

    83ec404ee085930f461cec7b792ec43e6b47ea6d94744178bf69a56f022e84fd507766878ac1a1feddfd9e35f62302cd10685c92094cb1644d184abff3ba6f5c

  • memory/1572-266-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1572-254-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2084-263-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2320-158-0x0000000002BB0000-0x0000000002C03000-memory.dmp

    Filesize

    332KB

  • memory/2320-110-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2320-259-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2320-156-0x0000000002BB0000-0x0000000002C03000-memory.dmp

    Filesize

    332KB

  • memory/2320-102-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2320-107-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2320-108-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2320-155-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2320-151-0x0000000002BB0000-0x0000000002C03000-memory.dmp

    Filesize

    332KB

  • memory/2320-100-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2320-98-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2320-96-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2320-94-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2320-145-0x0000000002BB0000-0x0000000002C03000-memory.dmp

    Filesize

    332KB

  • memory/2320-146-0x0000000002BB0000-0x0000000002C03000-memory.dmp

    Filesize

    332KB

  • memory/2320-109-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2596-106-0x00000000007A0000-0x00000000007F3000-memory.dmp

    Filesize

    332KB

  • memory/2596-93-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2596-81-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2596-83-0x00000000003D0000-0x00000000003D2000-memory.dmp

    Filesize

    8KB

  • memory/2596-50-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2596-7-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2596-17-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB

  • memory/2596-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2596-73-0x00000000003B0000-0x00000000003B1000-memory.dmp

    Filesize

    4KB

  • memory/2596-105-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2596-30-0x00000000002F0000-0x00000000002F1000-memory.dmp

    Filesize

    4KB

  • memory/2596-42-0x0000000000310000-0x0000000000311000-memory.dmp

    Filesize

    4KB

  • memory/2596-63-0x0000000000390000-0x0000000000391000-memory.dmp

    Filesize

    4KB

  • memory/2596-4-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2596-5-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2596-82-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2596-27-0x0000000000404000-0x0000000000405000-memory.dmp

    Filesize

    4KB

  • memory/3060-173-0x00000000002D0000-0x00000000002D1000-memory.dmp

    Filesize

    4KB

  • memory/3060-224-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3060-184-0x0000000000330000-0x0000000000331000-memory.dmp

    Filesize

    4KB

  • memory/3060-256-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3060-163-0x00000000002B0000-0x00000000002B1000-memory.dmp

    Filesize

    4KB

  • memory/3060-160-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

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