Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/07/2024, 03:30

General

  • Target

    377e1f0ad9e7ce43d9f42cd6fe9457fe2483f797771829217365d7806c6557a1.exe

  • Size

    90KB

  • MD5

    ff784d54993353c9c90531c4768b3700

  • SHA1

    e26415b4c384c0b6a9ce5c216e400aad9e6c73d1

  • SHA256

    377e1f0ad9e7ce43d9f42cd6fe9457fe2483f797771829217365d7806c6557a1

  • SHA512

    7e65378b75cb14996f16c684f6c61aaaed6c24513b8e7d771cd15477604676f2ed1c63f05363fcd9a87fb33a6760f250d45ac5fd9eef188f6feac9a5f3d66287

  • 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 Second Stage 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • UPX packed file 16 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 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\377e1f0ad9e7ce43d9f42cd6fe9457fe2483f797771829217365d7806c6557a1.exe
    "C:\Users\Admin\AppData\Local\Temp\377e1f0ad9e7ce43d9f42cd6fe9457fe2483f797771829217365d7806c6557a1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4284
    • C:\Users\Admin\AppData\Local\Temp\377e1f0ad9e7ce43d9f42cd6fe9457fe2483f797771829217365d7806c6557a1.exe
      "C:\Users\Admin\AppData\Local\Temp\377e1f0ad9e7ce43d9f42cd6fe9457fe2483f797771829217365d7806c6557a1.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3208
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\LTHSI.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2620
        • 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:2992
      • 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:2920
        • 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:3800
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:3720
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4000,i,1999448010053300448,1112699187621658374,262144 --variations-seed-version --mojo-platform-channel-handle=3976 /prefetch:8
    1⤵
      PID:364

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\LTHSI.txt

      Filesize

      145B

      MD5

      4eb61ec7816c34ec8c125acadc57ec1b

      SHA1

      b0015cc865c0bb1a027be663027d3829401a31cc

      SHA256

      08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

      SHA512

      f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

      Filesize

      90KB

      MD5

      a30d19fd2e539901f9c4807fbdd96f59

      SHA1

      acb96cd129b8a17266e2217d15eef2269c4b1c23

      SHA256

      bee28ad696ff2e604cdd1e247fe7a6cd7030b51fcf5325c20154f8c7068650d1

      SHA512

      1bb2daa0794624c62757b014688ce91418922a4f5c7888e7fc80a8bb39ad00d9c23febf8420b0a9c3fab8128fe6100fbd37110da9397b4d70691567be17e3052

    • memory/2920-45-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/2920-36-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/3208-58-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/3208-6-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/3208-9-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/3208-11-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/3720-53-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/3720-47-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/3720-50-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/3720-51-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/3720-54-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/3720-60-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/3800-59-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/4284-12-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/4284-5-0x0000000002A40000-0x0000000002A42000-memory.dmp

      Filesize

      8KB

    • memory/4284-7-0x0000000002A50000-0x0000000002A52000-memory.dmp

      Filesize

      8KB

    • memory/4284-3-0x00000000022D0000-0x00000000022D2000-memory.dmp

      Filesize

      8KB

    • memory/4284-0-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/4284-4-0x0000000002A30000-0x0000000002A32000-memory.dmp

      Filesize

      8KB