Analysis

  • max time kernel
    144s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    31/01/2024, 09:43

General

  • Target

    84163f55a98e68a7e2cb11fe45ed507a.exe

  • Size

    312KB

  • MD5

    84163f55a98e68a7e2cb11fe45ed507a

  • SHA1

    b35d3f9852ebde4c7d030a9853121e2e930a7a42

  • SHA256

    2dd30e532f23c591e582f184dc59a2c9a0691bbfe10183af875c21313c44d436

  • SHA512

    b22c25ecd03d0c861016bfe75afcfbe46b43e5044d00bb65c384a321335a9ae353998ed3ad965dc1fe88d3324252723fce3b46892c71bb52e5910b597439cb13

  • SSDEEP

    6144:YG377xS2Vp2CeiorXhwTBN531pcCJJvHCC8oS:Dr7xS2Vp6FwT7bJJvHOoS

Malware Config

Signatures

  • ModiLoader, DBatLoader

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

  • UAC bypass 3 TTPs 1 IoCs
  • ModiLoader Second Stage 6 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • Drops file in Windows directory 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • System policy modification 1 TTPs 1 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\84163f55a98e68a7e2cb11fe45ed507a.exe
    "C:\Users\Admin\AppData\Local\Temp\84163f55a98e68a7e2cb11fe45ed507a.exe"
    1⤵
    • Checks whether UAC is enabled
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3032
    • C:\Windows\mstwain32.exe
      "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\84163f55a98e68a7e2cb11fe45ed507a.exe"
      2⤵
      • UAC bypass
      • Deletes itself
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • System policy modification
      PID:688
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2868

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Windows\mstwain32.exe

          Filesize

          312KB

          MD5

          84163f55a98e68a7e2cb11fe45ed507a

          SHA1

          b35d3f9852ebde4c7d030a9853121e2e930a7a42

          SHA256

          2dd30e532f23c591e582f184dc59a2c9a0691bbfe10183af875c21313c44d436

          SHA512

          b22c25ecd03d0c861016bfe75afcfbe46b43e5044d00bb65c384a321335a9ae353998ed3ad965dc1fe88d3324252723fce3b46892c71bb52e5910b597439cb13

        • memory/688-19-0x0000000002410000-0x000000000241E000-memory.dmp

          Filesize

          56KB

        • memory/688-25-0x0000000075F70000-0x0000000076060000-memory.dmp

          Filesize

          960KB

        • memory/688-24-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/688-23-0x0000000002400000-0x0000000002401000-memory.dmp

          Filesize

          4KB

        • memory/688-14-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/688-22-0x0000000074BD0000-0x0000000074BE4000-memory.dmp

          Filesize

          80KB

        • memory/688-21-0x0000000075F70000-0x0000000076060000-memory.dmp

          Filesize

          960KB

        • memory/688-18-0x00000000005E0000-0x00000000005E1000-memory.dmp

          Filesize

          4KB

        • memory/3032-10-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3032-12-0x0000000003340000-0x0000000003390000-memory.dmp

          Filesize

          320KB

        • memory/3032-13-0x0000000002500000-0x000000000250D000-memory.dmp

          Filesize

          52KB

        • memory/3032-8-0x0000000002500000-0x0000000002510000-memory.dmp

          Filesize

          64KB

        • memory/3032-0-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/3032-1-0x0000000000280000-0x0000000000281000-memory.dmp

          Filesize

          4KB