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Analysis

  • max time kernel
    120s
  • max time network
    117s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/01/2025, 02:07

General

  • Target

    3aac43e90cd3b284be1ee14fd576301fc20c234aa603ab1bec463b4f199267c9N.exe

  • Size

    90KB

  • MD5

    abbf2a0e9f1a5bffe7931e5bd26dc490

  • SHA1

    3f17b638d043411c9cd31a90de1571c3b592d436

  • SHA256

    3aac43e90cd3b284be1ee14fd576301fc20c234aa603ab1bec463b4f199267c9

  • SHA512

    dbf60fa7396521badb0f11332185b924b7c5d61935575293b6e39d829385d9daa7836863a3dcda72f5c5925730ac0463ea8f5a0ff3963a4ab079ad80f2c3e68b

  • SSDEEP

    1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDq:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE30

Malware Config

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Modiloader family
  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 19 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 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3aac43e90cd3b284be1ee14fd576301fc20c234aa603ab1bec463b4f199267c9N.exe
    "C:\Users\Admin\AppData\Local\Temp\3aac43e90cd3b284be1ee14fd576301fc20c234aa603ab1bec463b4f199267c9N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3420
    • C:\Users\Admin\AppData\Local\Temp\3aac43e90cd3b284be1ee14fd576301fc20c234aa603ab1bec463b4f199267c9N.exe
      "C:\Users\Admin\AppData\Local\Temp\3aac43e90cd3b284be1ee14fd576301fc20c234aa603ab1bec463b4f199267c9N.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1548
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\CDWUD.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1016
        • 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:2928
      • 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:1984
        • 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:3704
        • 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:4856

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    90KB

    MD5

    9bf506f4641ba55f37b072b02370f469

    SHA1

    ada0bfb3d97418ee4b802ef83fe1b02f6972717d

    SHA256

    63d4250d1812ae56fda1b641c8a7434beaf2e10fce6a59fe9cb1c97776be9644

    SHA512

    d0c47b4f59506ac9e2ed3d6e255f41ec6a19ecfc79c1d441c7ee05407f92ed0e38e02de3c7786eedc5cf5d3cf253390cc3f26e0e14419bbd6da7a6ade68ada09

  • memory/1548-7-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1548-13-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1548-59-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1548-39-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1548-9-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1984-41-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1984-54-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1984-40-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3420-4-0x0000000002310000-0x0000000002312000-memory.dmp

    Filesize

    8KB

  • memory/3420-3-0x00000000022F0000-0x00000000022F2000-memory.dmp

    Filesize

    8KB

  • memory/3420-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3420-6-0x0000000002320000-0x0000000002322000-memory.dmp

    Filesize

    8KB

  • memory/3420-12-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3420-5-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3704-60-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4856-46-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4856-57-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4856-55-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4856-52-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4856-50-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4856-61-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB