Analysis

  • max time kernel
    136s
  • max time network
    179s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2022 10:35

General

  • Target

    1b1500b7ffd21f7aff0035b931ae34c69dbc9b2476c6cb5da4e1f47b3176efbe.exe

  • Size

    208KB

  • MD5

    7556c1a8c5b4026c4a1d1b552613bc0f

  • SHA1

    05a5709e41de04bef2300fff5c8bece57521f6ef

  • SHA256

    1b1500b7ffd21f7aff0035b931ae34c69dbc9b2476c6cb5da4e1f47b3176efbe

  • SHA512

    fd19f78e61efabf34f87ee8ba3b020c3fc685a952b583a465b27cd237d9b2199512a74aac4e96af6c0b70e3aac92e5bf2f0bec6be2f26ae65c065762223a4350

  • SSDEEP

    3072:x2M4zzaAfGDZlWFu9QMYxvWy5sbdKBt5xV9mDs4xa:x2HCAfrVWyybdKBt5xV9mDs4xa

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Modifies firewall policy service 2 TTPs 8 IoCs
  • Executes dropped EXE 2 IoCs
  • UPX packed file 6 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:2740
      • C:\Users\Admin\AppData\Local\Temp\1b1500b7ffd21f7aff0035b931ae34c69dbc9b2476c6cb5da4e1f47b3176efbe.exe
        "C:\Users\Admin\AppData\Local\Temp\1b1500b7ffd21f7aff0035b931ae34c69dbc9b2476c6cb5da4e1f47b3176efbe.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:2608
        • C:\Users\Admin\AppData\Local\Temp\1b1500b7ffd21f7aff0035b931ae34c69dbc9b2476c6cb5da4e1f47b3176efbe.exe
          "C:\Users\Admin\AppData\Local\Temp\1b1500b7ffd21f7aff0035b931ae34c69dbc9b2476c6cb5da4e1f47b3176efbe.exe"
          3⤵
          • Checks computer location settings
          • Maps connected drives based on registry
          • Drops file in System32 directory
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4104
          • C:\Windows\SysWOW64\igfxdj86.exe
            "C:\Windows\SysWOW64\igfxdj86.exe" C:\Users\Admin\AppData\Local\Temp\1B1500~1.EXE
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1940
            • C:\Windows\SysWOW64\igfxdj86.exe
              "C:\Windows\SysWOW64\igfxdj86.exe" C:\Users\Admin\AppData\Local\Temp\1B1500~1.EXE
              5⤵
              • Modifies firewall policy service
              • Executes dropped EXE
              • Adds Run key to start application
              • Maps connected drives based on registry
              • Drops file in System32 directory
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:2136

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\igfxdj86.exe

      Filesize

      208KB

      MD5

      7556c1a8c5b4026c4a1d1b552613bc0f

      SHA1

      05a5709e41de04bef2300fff5c8bece57521f6ef

      SHA256

      1b1500b7ffd21f7aff0035b931ae34c69dbc9b2476c6cb5da4e1f47b3176efbe

      SHA512

      fd19f78e61efabf34f87ee8ba3b020c3fc685a952b583a465b27cd237d9b2199512a74aac4e96af6c0b70e3aac92e5bf2f0bec6be2f26ae65c065762223a4350

    • C:\Windows\SysWOW64\igfxdj86.exe

      Filesize

      208KB

      MD5

      7556c1a8c5b4026c4a1d1b552613bc0f

      SHA1

      05a5709e41de04bef2300fff5c8bece57521f6ef

      SHA256

      1b1500b7ffd21f7aff0035b931ae34c69dbc9b2476c6cb5da4e1f47b3176efbe

      SHA512

      fd19f78e61efabf34f87ee8ba3b020c3fc685a952b583a465b27cd237d9b2199512a74aac4e96af6c0b70e3aac92e5bf2f0bec6be2f26ae65c065762223a4350

    • C:\Windows\SysWOW64\igfxdj86.exe

      Filesize

      208KB

      MD5

      7556c1a8c5b4026c4a1d1b552613bc0f

      SHA1

      05a5709e41de04bef2300fff5c8bece57521f6ef

      SHA256

      1b1500b7ffd21f7aff0035b931ae34c69dbc9b2476c6cb5da4e1f47b3176efbe

      SHA512

      fd19f78e61efabf34f87ee8ba3b020c3fc685a952b583a465b27cd237d9b2199512a74aac4e96af6c0b70e3aac92e5bf2f0bec6be2f26ae65c065762223a4350

    • memory/1940-138-0x0000000000000000-mapping.dmp

    • memory/2136-141-0x0000000000000000-mapping.dmp

    • memory/2136-147-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/2136-148-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/4104-132-0x0000000000000000-mapping.dmp

    • memory/4104-133-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/4104-135-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/4104-136-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/4104-137-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB