Analysis

  • max time kernel
    134s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/10/2024, 04:53

General

  • Target

    c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe

  • Size

    135KB

  • MD5

    8ef01880cfdebf7288a039d279640ba2

  • SHA1

    f5960008e1fd9503937a4a8302989349d179d5f2

  • SHA256

    c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a

  • SHA512

    a94582df361a7948ed7c227c44aabd69942e68277bdf038e74a6075b0f2f0dcdfa8834da75a7ce687c1c7dc70f02f011f844a57bf4049d26a685403c0d69b374

  • SSDEEP

    1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOU:YfU/WF6QMauSuiWNi9eNOl0007NZIOU

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • UPX packed file 6 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe
    "C:\Users\Admin\AppData\Local\Temp\c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1240
    • C:\ProgramData\Update\wuauclt.exe
      "C:\ProgramData\Update\wuauclt.exe" /run
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2028
    • C:\windows\SysWOW64\cmd.exe
      "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\c7558a103ce1f39442d0755e04450f76d17aefa2a4c1c7ca1c375fa873754f0a.exe" >> NUL
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3440

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\ProgramData\Update\wuauclt.exe

          Filesize

          135KB

          MD5

          eace89df76bdc5bc490b62009552f42f

          SHA1

          65b8faac3c1f7db64114282759fcf6cb761ec60b

          SHA256

          0d00408b8fa7258e55f47ac27be87358e59185527de8d79c68b884a71aaf52f4

          SHA512

          9a9adabb590d43cbba6a7b89d0a95b2b8261991b69c131c1ce9d2b6dadc730bf47df9502b2b463fc388dce1aa7dc545541b75b28990959043ace045e44d7f096

        • memory/1240-0-0x0000000000E40000-0x0000000000E68000-memory.dmp

          Filesize

          160KB

        • memory/1240-6-0x0000000000E40000-0x0000000000E68000-memory.dmp

          Filesize

          160KB

        • memory/1240-8-0x0000000000E40000-0x0000000000E68000-memory.dmp

          Filesize

          160KB

        • memory/2028-4-0x0000000000990000-0x00000000009B8000-memory.dmp

          Filesize

          160KB

        • memory/2028-7-0x0000000000990000-0x00000000009B8000-memory.dmp

          Filesize

          160KB