Overview

overview

7

Static

static

7

4b86b5e671...aa.exe

windows7-x64

7

4b86b5e671...aa.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    160s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/04/2024, 22:30

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General

  • Target

    4b86b5e671babc86896654f40eed93aa.exe

  • Size

    1.6MB

  • MD5

    4b86b5e671babc86896654f40eed93aa

  • SHA1

    000f2c0d7463ca2f1718a059f4ac2514896a2ab8

  • SHA256

    9603313319f2f2050ccfa4dd5f536c8b377ee4dcb2fa7912d9a5680cfb13050e

  • SHA512

    fcaf1bab2088bee32f302729919c2f2c76da47348f58ae5c66341ec7edc1d37a11b7f703632f9dff83598e8080e9895007dbcd71a3d38087107600b864eb1a76

  • SSDEEP

    24576:xnpx2YNGvfaV8V+JlM4DxyQHaNyOvy4eor5UQnmgYtPM+YikVDzq:FrGvfmpJlNZH3O9e6mgYtPlYikh2

Score
7/10
persistencespywarestealerupx

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • UPX packed file 9 IoCs

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

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b86b5e671babc86896654f40eed93aa.exe
    "C:\Users\Admin\AppData\Local\Temp\4b86b5e671babc86896654f40eed93aa.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2500
    • C:\Users\Admin\AppData\Local\Temp\4b86b5e671babc86896654f40eed93aa.exe
      "C:\Users\Admin\AppData\Local\Temp\4b86b5e671babc86896654f40eed93aa.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:544
      • C:\Users\Admin\AppData\Local\Temp\4b86b5e671babc86896654f40eed93aa.exe
        "C:\Users\Admin\AppData\Local\Temp\4b86b5e671babc86896654f40eed93aa.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:2588
    • C:\Users\Admin\AppData\Local\Temp\4b86b5e671babc86896654f40eed93aa.exe
      "C:\Users\Admin\AppData\Local\Temp\4b86b5e671babc86896654f40eed93aa.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1076
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4028 --field-trial-handle=2148,i,1752153415760610784,11376271161549019716,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:368

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\cum big (Tatjana).rar.exe
            Filesize

            403KB

            MD5

            73a9b9eeeb16cada2b614aa7c9fc2dc6

            SHA1

            751da6f1ae157cd043bd8630f6d6ecdedf06a96b

            SHA256

            a0f7cc0907dab0704f9539b181f129a47e5671b31e1a33f3258447e36a0632cc

            SHA512

            67dd77151b0a474637603f2a8e4fc397b67f66c96d71310ee1920db3dcc99273bc861db39f22d5ab6398bf139b1085576826e4b6c310730e556466098f3afe71

            Download Submit

          • memory/544-10-0x0000000000400000-0x000000000041D000-memory.dmp

            Filesize

            116KB

            Download

          • memory/544-191-0x0000000000400000-0x000000000041D000-memory.dmp

            Filesize

            116KB

            Download

          • memory/1076-45-0x0000000000400000-0x000000000041D000-memory.dmp

            Filesize

            116KB

            Download

          • memory/1076-194-0x0000000000400000-0x000000000041D000-memory.dmp

            Filesize

            116KB

            Download

          • memory/2500-0-0x0000000000400000-0x000000000041D000-memory.dmp

            Filesize

            116KB

            Download

          • memory/2500-188-0x0000000000400000-0x000000000041D000-memory.dmp

            Filesize

            116KB

            Download

          • memory/2588-59-0x0000000000400000-0x000000000041D000-memory.dmp

            Filesize

            116KB

            Download

          • memory/2588-195-0x0000000000400000-0x000000000041D000-memory.dmp

            Filesize

            116KB

            Download