Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-06-2024 19:36

General

  • Target

    244a2634d63554a1c288bd696994ead7c66cd5e0d284e4b593bc885e62591af5.exe

  • Size

    90KB

  • MD5

    5cab8ede2a4979caf5bef61bd992ddb2

  • SHA1

    cc510bf20a2000d2178e196dbbd3a299779f1948

  • SHA256

    244a2634d63554a1c288bd696994ead7c66cd5e0d284e4b593bc885e62591af5

  • SHA512

    2ecf7dcc1f9cf756bc08f009b7cb72496bffea03d67138f3fe09c159093adeff73378c6005b954cfd4b03f78af05c2f3e2f171749d23844360debce1da5784a9

  • 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 4 IoCs
  • ModiLoader Second Stage 4 IoCs
  • UPX dump on OEP (original entry point) 19 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 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 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\244a2634d63554a1c288bd696994ead7c66cd5e0d284e4b593bc885e62591af5.exe
    "C:\Users\Admin\AppData\Local\Temp\244a2634d63554a1c288bd696994ead7c66cd5e0d284e4b593bc885e62591af5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1140
    • C:\Users\Admin\AppData\Local\Temp\244a2634d63554a1c288bd696994ead7c66cd5e0d284e4b593bc885e62591af5.exe
      "C:\Users\Admin\AppData\Local\Temp\244a2634d63554a1c288bd696994ead7c66cd5e0d284e4b593bc885e62591af5.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1848
      • 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:4344
        • 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:4700
      • 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:2244
        • 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:3248
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:2716
  • 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 --mojo-platform-channel-handle=4068 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4560

    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

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    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

      d780d2b8d9f20c10a655e1d494002c6f

      SHA1

      1dc03fcb390165eebb56eb9071eaa7b526c48bdc

      SHA256

      47fdcedd4940d886b93a0a27a5b78692f120436529622937e735348a3dc7f6dc

      SHA512

      fd8bb1e00e3e90340dbaa22d0e201763ae4eded1a40bea6f6629515dce0dcf84c9cfc02a729337ecc47690dbb1a6425c72b644677c8c25a7310e42ffbfb00945

    • memory/1140-14-0x0000000000400000-0x0000000000453000-memory.dmp
      Filesize

      332KB

    • memory/1140-6-0x0000000002B80000-0x0000000002B82000-memory.dmp
      Filesize

      8KB

    • memory/1140-5-0x0000000002B70000-0x0000000002B72000-memory.dmp
      Filesize

      8KB

    • memory/1140-3-0x0000000000400000-0x0000000000453000-memory.dmp
      Filesize

      332KB

    • memory/1140-7-0x0000000002B90000-0x0000000002B92000-memory.dmp
      Filesize

      8KB

    • memory/1140-4-0x0000000002410000-0x0000000002412000-memory.dmp
      Filesize

      8KB

    • memory/1140-0-0x0000000000400000-0x0000000000453000-memory.dmp
      Filesize

      332KB

    • memory/1848-8-0x0000000000400000-0x000000000040B000-memory.dmp
      Filesize

      44KB

    • memory/1848-10-0x0000000000400000-0x000000000040B000-memory.dmp
      Filesize

      44KB

    • memory/1848-11-0x0000000000400000-0x000000000040B000-memory.dmp
      Filesize

      44KB

    • memory/1848-55-0x0000000000410000-0x00000000004D9000-memory.dmp
      Filesize

      804KB

    • memory/1848-39-0x0000000000400000-0x000000000040B000-memory.dmp
      Filesize

      44KB

    • memory/1848-60-0x0000000000400000-0x000000000040B000-memory.dmp
      Filesize

      44KB

    • memory/2244-35-0x0000000000400000-0x0000000000453000-memory.dmp
      Filesize

      332KB

    • memory/2244-51-0x0000000000400000-0x0000000000453000-memory.dmp
      Filesize

      332KB

    • memory/2244-41-0x0000000000400000-0x0000000000453000-memory.dmp
      Filesize

      332KB

    • memory/2716-52-0x0000000000400000-0x0000000000414000-memory.dmp
      Filesize

      80KB

    • memory/2716-54-0x0000000000400000-0x0000000000414000-memory.dmp
      Filesize

      80KB

    • memory/2716-56-0x0000000000400000-0x0000000000414000-memory.dmp
      Filesize

      80KB

    • memory/2716-44-0x0000000000400000-0x0000000000414000-memory.dmp
      Filesize

      80KB

    • memory/2716-59-0x0000000000400000-0x0000000000414000-memory.dmp
      Filesize

      80KB

    • memory/2716-62-0x0000000000400000-0x0000000000414000-memory.dmp
      Filesize

      80KB

    • memory/3248-61-0x0000000000400000-0x000000000040B000-memory.dmp
      Filesize

      44KB