Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/08/2024, 22:44

General

  • Target

    6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe

  • Size

    135KB

  • MD5

    4be714e637dfca2ed36a809f852f655a

  • SHA1

    72e695c78aea9ce7a2c558d3b9cf9ae639cf992d

  • SHA256

    6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846

  • SHA512

    5248ac21cf10e1f08ff52d4ba422a69f2f23be82a54bb6b006392389293e652a96607e1cae46ea954d6ab51d1b662d01ac7e0c4b50852d23d398f7b8853bb109

  • SSDEEP

    1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOS:YfU/WF6QMauSuiWNi9eNOl0007NZIOS

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
  • 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
  • Indicator Removal: File Deletion 1 TTPs

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

  • 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\6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe
    "C:\Users\Admin\AppData\Local\Temp\6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4608
    • C:\ProgramData\Update\wuauclt.exe
      "C:\ProgramData\Update\wuauclt.exe" /run
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:732
    • C:\windows\SysWOW64\cmd.exe
      "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe" >> NUL
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4488

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\ProgramData\Update\wuauclt.exe

          Filesize

          135KB

          MD5

          c8e64212347857dd4bf34c079e069b64

          SHA1

          b8153217200c5f2160ebb9ecc924339242ce7ec7

          SHA256

          985a530b719ca0788a964499cc34206aeecb710a61537af7ec5b193e2b64078b

          SHA512

          4fa58e70b8fc98a73be11e644bb9d21d5161b6b69dda07f0ffef0ba47a7f4a463083dc7672846ef9997ea0abe43130915f59d8717bb3dbf75d4367d71b1eae55

        • memory/732-5-0x0000000000060000-0x0000000000088000-memory.dmp

          Filesize

          160KB

        • memory/732-7-0x0000000000060000-0x0000000000088000-memory.dmp

          Filesize

          160KB

        • memory/4608-0-0x00000000006C0000-0x00000000006E8000-memory.dmp

          Filesize

          160KB

        • memory/4608-6-0x00000000006C0000-0x00000000006E8000-memory.dmp

          Filesize

          160KB

        • memory/4608-8-0x00000000006C0000-0x00000000006E8000-memory.dmp

          Filesize

          160KB