Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/05/2024, 15:53

General

  • Target

    bca8282e85bc76a596a50e06e08f39d831892250e94a121d22eb9f228dddec22.exe

  • Size

    51KB

  • MD5

    9afc3bd7af72c151fb81c7af5a17424e

  • SHA1

    810c2f270e799e6e0dff0f007fcee2b95714cb79

  • SHA256

    bca8282e85bc76a596a50e06e08f39d831892250e94a121d22eb9f228dddec22

  • SHA512

    8a8c4d06ad91fbc4ed3039a30bf85c78b674b95f9c6b0c3ee40eda9df4d82a5d78e8e50ca1f0010f09a7d6df52e19ad617da381c4f6e38fb5f6a036a73cdcd99

  • SSDEEP

    768:buDOw9UiaoWUB2preAr+OfjRW00S16avdrQFiLjJvtXm:buDOw9aWifVgoc+vXm

Score
7/10
upx

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 5 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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bca8282e85bc76a596a50e06e08f39d831892250e94a121d22eb9f228dddec22.exe
    "C:\Users\Admin\AppData\Local\Temp\bca8282e85bc76a596a50e06e08f39d831892250e94a121d22eb9f228dddec22.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3188
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      PID:4828

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\lossy.exe

          Filesize

          51KB

          MD5

          d69346b0de0d57230c0be79ec3e37e1f

          SHA1

          e37bbc3e4b4145d2d1fd7c16aea938b4e18507af

          SHA256

          272d5f2cf98547b905cd158599fa03c23658b4ad968e4755b9fa48234590a9b6

          SHA512

          4b4c4f6cac7afdf9d4c82c09727292476d153b6d9f7e8d7f8bafe9eb2a5bde99e50593cff9432347db63b7bbced8b48541ab8e61da37fb442bc02eaab43b5eb1

        • memory/3188-0-0x0000000008000000-0x000000000800F000-memory.dmp

          Filesize

          60KB

        • memory/3188-1-0x0000000000590000-0x0000000000596000-memory.dmp

          Filesize

          24KB

        • memory/3188-2-0x0000000000590000-0x0000000000596000-memory.dmp

          Filesize

          24KB

        • memory/3188-3-0x00000000005B0000-0x00000000005B6000-memory.dmp

          Filesize

          24KB

        • memory/3188-17-0x0000000008000000-0x000000000800F000-memory.dmp

          Filesize

          60KB

        • memory/4828-18-0x0000000008000000-0x000000000800F000-memory.dmp

          Filesize

          60KB

        • memory/4828-20-0x0000000001F20000-0x0000000001F26000-memory.dmp

          Filesize

          24KB

        • memory/4828-26-0x0000000001F00000-0x0000000001F06000-memory.dmp

          Filesize

          24KB

        • memory/4828-27-0x0000000008000000-0x000000000800F000-memory.dmp

          Filesize

          60KB