Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-05-2024 03:32

General

  • Target

    d59eb82f6d72b21a2328827d9649adcb744828d51426ccab3be006976176072b.exe

  • Size

    308KB

  • MD5

    36fc6bf8eea3c87edebc4409c068fe3a

  • SHA1

    2ade6c0b9b019990d88dbeb9020a03f3ea79f0ee

  • SHA256

    d59eb82f6d72b21a2328827d9649adcb744828d51426ccab3be006976176072b

  • SHA512

    ee589e2e0d9dd9da97bba9acc3fa33143118b5747903653fcd4a482a814bd9089a2fc243e18fcdb9075e0591ecd9dd56fd69fc8e159dd0a36ee2734f9b437792

  • SSDEEP

    3072:/c3sBG7mXh7m/zZM3jAbNOM6CNtDCZFL:E3sBz0Z4Mj72F

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) 11 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 11 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\d59eb82f6d72b21a2328827d9649adcb744828d51426ccab3be006976176072b.exe
    "C:\Users\Admin\AppData\Local\Temp\d59eb82f6d72b21a2328827d9649adcb744828d51426ccab3be006976176072b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4784
    • C:\Users\Admin\AppData\Local\Temp\d59eb82f6d72b21a2328827d9649adcb744828d51426ccab3be006976176072b.exe
      "C:\Users\Admin\AppData\Local\Temp\d59eb82f6d72b21a2328827d9649adcb744828d51426ccab3be006976176072b.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1684
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\HVVJK.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4380
        • 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:1104
      • 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:4884
        • 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:1152
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:4636

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    Filesize

    308KB

    MD5

    d13fcf8e04651481194ad6eeb1bd17cd

    SHA1

    e3bdee4329ac3ffebae7d7a9541321adb7cf3ebc

    SHA256

    59846548debc71de1cb28405b4e3db3eb5e49cad9af98047ef5ec86b6d175ecf

    SHA512

    10f07694a2921744cb9233c711e9e0218c3a29360686fd156c646b067fa194c2f0ab2bc05aa677ec11341da80b80069b73d0c0a5908f022a17bcd0bcfd73b92c

  • memory/1152-52-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1684-50-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1684-4-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1684-6-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1684-7-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/4636-45-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4636-44-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4636-37-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4636-47-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4636-46-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4636-53-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4784-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/4784-3-0x00000000022D0000-0x00000000022D1000-memory.dmp

    Filesize

    4KB

  • memory/4884-34-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/4884-43-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/4884-31-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB