Analysis

  • max time kernel
    149s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    08-06-2024 22:04

General

  • Target

    40de557503794094b0da4b3c2d839bc112240dbbd1453e3b80848bf79c995d6b.exe

  • Size

    90KB

  • MD5

    1da5694a0b4fee7d7641cba7d8a88c27

  • SHA1

    ab6e52140dbabe53fee3bfd2b41e7b3599eaf1a7

  • SHA256

    40de557503794094b0da4b3c2d839bc112240dbbd1453e3b80848bf79c995d6b

  • SHA512

    c644e41dc58a9b67444586fab857d85c1ba5634048684f0d78dcd674b4400204f6c682e6a5c7b21e42b81fb4971e7b5205b803b902f9e14439034e272aa5a203

  • 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 2 IoCs
  • ModiLoader Second Stage 2 IoCs
  • UPX dump on OEP (original entry point) 19 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 20 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 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\40de557503794094b0da4b3c2d839bc112240dbbd1453e3b80848bf79c995d6b.exe
    "C:\Users\Admin\AppData\Local\Temp\40de557503794094b0da4b3c2d839bc112240dbbd1453e3b80848bf79c995d6b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2420
    • C:\Users\Admin\AppData\Local\Temp\40de557503794094b0da4b3c2d839bc112240dbbd1453e3b80848bf79c995d6b.exe
      "C:\Users\Admin\AppData\Local\Temp\40de557503794094b0da4b3c2d839bc112240dbbd1453e3b80848bf79c995d6b.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2584
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\GHEMF.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2864
        • 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:844
      • 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:1816
        • 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:484
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          PID:2300

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

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\GHEMF.bat
    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

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

    90KB

    MD5

    992c8ed97a5b654ed56fbd86eb4a2843

    SHA1

    bd5ad5ce19aaa8935d07dd078181c14b0577bbfb

    SHA256

    8f462d34bef6b505883bae37678c0b83c532d032acff0da28ffa578c3f1e0c80

    SHA512

    ec516af91aefdfd3830080f83514e18fcfd2cb9aefa13c7dda1b1e90de497ee0df937411233b1cf428065d1f535c3ecd512b497929d98ebd26654f40e79267a1

  • memory/484-247-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/484-259-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1816-164-0x00000000001E0000-0x00000000001E1000-memory.dmp
    Filesize

    4KB

  • memory/1816-149-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/1816-209-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/1816-154-0x00000000001C0000-0x00000000001C1000-memory.dmp
    Filesize

    4KB

  • memory/1816-175-0x0000000000280000-0x0000000000281000-memory.dmp
    Filesize

    4KB

  • memory/1816-250-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2300-248-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2300-260-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

  • memory/2420-29-0x0000000000200000-0x0000000000201000-memory.dmp
    Filesize

    4KB

  • memory/2420-26-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2420-103-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2420-71-0x00000000004D0000-0x00000000004D1000-memory.dmp
    Filesize

    4KB

  • memory/2420-95-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2420-41-0x00000000002A0000-0x00000000002A1000-memory.dmp
    Filesize

    4KB

  • memory/2420-0-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2420-99-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2420-79-0x00000000004F0000-0x00000000004F2000-memory.dmp
    Filesize

    8KB

  • memory/2420-61-0x00000000002E0000-0x00000000002E1000-memory.dmp
    Filesize

    4KB

  • memory/2420-24-0x0000000000404000-0x0000000000405000-memory.dmp
    Filesize

    4KB

  • memory/2420-15-0x00000000001E0000-0x00000000001E1000-memory.dmp
    Filesize

    4KB

  • memory/2420-3-0x00000000001C0000-0x00000000001C1000-memory.dmp
    Filesize

    4KB

  • memory/2420-5-0x00000000001C0000-0x00000000001C1000-memory.dmp
    Filesize

    4KB

  • memory/2584-91-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2584-146-0x0000000001EC0000-0x0000000001F13000-memory.dmp
    Filesize

    332KB

  • memory/2584-147-0x0000000001ED0000-0x0000000001F23000-memory.dmp
    Filesize

    332KB

  • memory/2584-148-0x0000000001ED0000-0x0000000001F23000-memory.dmp
    Filesize

    332KB

  • memory/2584-89-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2584-93-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2584-96-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2584-98-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2584-102-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2584-254-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2584-104-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/2584-106-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB