Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    18/09/2024, 17:55

General

  • Target

    Matsnu-MBRwipingRansomware_1B2D2A4B97C7C2727D571BBF9376F54F_Inkasso Rechnung vom 27.05.2013 .exe

  • Size

    102KB

  • MD5

    1b2d2a4b97c7c2727d571bbf9376f54f

  • SHA1

    1fc29938ec5c209ba900247d2919069b320d33b0

  • SHA256

    7634433f8fcf4d13fb46d680802e48eeb160e0f51e228cae058436845976381e

  • SHA512

    506fc96423e5e2e38078806591e09a6eb3cf924eb748af528f7315aa0b929890823798a3ef2a5809c14023c3ff8a3db36277bc90c7b099218422aafa4e0c2ee0

  • SSDEEP

    1536:jj+Rj1lGIXKSmE17v97yiqHGMRPtbsLW8/V2k12v1/BDxVyCfCrCAc:jjw6Sf0iqmMnb2W02v3mCf4Nc

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • UPX packed file 9 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 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Matsnu-MBRwipingRansomware_1B2D2A4B97C7C2727D571BBF9376F54F_Inkasso Rechnung vom 27.05.2013 .exe
    "C:\Users\Admin\AppData\Local\Temp\Matsnu-MBRwipingRansomware_1B2D2A4B97C7C2727D571BBF9376F54F_Inkasso Rechnung vom 27.05.2013 .exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    • Suspicious use of WriteProcessMemory
    PID:2708
    • C:\Users\Admin\AppData\Local\Temp\Matsnu-MBRwipingRansomware_1B2D2A4B97C7C2727D571BBF9376F54F_Inkasso Rechnung vom 27.05.2013 .exe
      "C:\Users\Admin\AppData\Local\Temp\Matsnu-MBRwipingRansomware_1B2D2A4B97C7C2727D571BBF9376F54F_Inkasso Rechnung vom 27.05.2013 .exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2804
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
        • Deletes itself
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1920
        • C:\Users\Admin\AppData\Local\Temp\ufpjbgtsen.pre
          C:\Users\Admin\AppData\Local\Temp\ufpjbgtsen.pre
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2628
          • C:\Users\Admin\AppData\Local\Temp\ufpjbgtsen.pre
            C:\Users\Admin\AppData\Local\Temp\ufpjbgtsen.pre
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2676
            • C:\Windows\SysWOW64\svchost.exe
              svchost.exe
              6⤵
              • Adds Run key to start application
              • System Location Discovery: System Language Discovery
              PID:1148

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\ufpjbgtsen.pre

    Filesize

    102KB

    MD5

    1b2d2a4b97c7c2727d571bbf9376f54f

    SHA1

    1fc29938ec5c209ba900247d2919069b320d33b0

    SHA256

    7634433f8fcf4d13fb46d680802e48eeb160e0f51e228cae058436845976381e

    SHA512

    506fc96423e5e2e38078806591e09a6eb3cf924eb748af528f7315aa0b929890823798a3ef2a5809c14023c3ff8a3db36277bc90c7b099218422aafa4e0c2ee0

  • memory/1148-59-0x000000007EFA0000-0x000000007EFAE000-memory.dmp

    Filesize

    56KB

  • memory/1148-53-0x000000007EFA0000-0x000000007EFAE000-memory.dmp

    Filesize

    56KB

  • memory/1148-52-0x000000007EFA0000-0x000000007EFAE000-memory.dmp

    Filesize

    56KB

  • memory/1148-47-0x000000007EFA0000-0x000000007EFAE000-memory.dmp

    Filesize

    56KB

  • memory/1920-14-0x000000007EFA0000-0x000000007EFAE000-memory.dmp

    Filesize

    56KB

  • memory/1920-28-0x000000007EFA0000-0x000000007EFAE000-memory.dmp

    Filesize

    56KB

  • memory/1920-18-0x000000007EFA0000-0x000000007EFAE000-memory.dmp

    Filesize

    56KB

  • memory/1920-15-0x000000007EFA0000-0x000000007EFAE000-memory.dmp

    Filesize

    56KB

  • memory/2676-50-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2676-51-0x0000000000410000-0x0000000000413000-memory.dmp

    Filesize

    12KB

  • memory/2676-42-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2804-12-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2804-2-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2804-4-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2804-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2804-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2804-8-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2804-11-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2804-13-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2804-10-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB