Malicious PDF — malware analysis report

Static analysis result for SHA-256 42208f525140fe96…

MALICIOUS

PDF

35.7 KB Created: 2021-07-04 09:25:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: b683d3f36b587ccc0ccc52a00552abe2 SHA-1: 19c7dd7984db0dd020f8d64fe757382a8f8fc3f4 SHA-256: 42208f525140fe96d1367c44df6fcc9d76bf177a6403c19f376e74400384d9d1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a call-to-action phrase, attempting to lure the user to click on links related to game hacks and free generators. The primary malicious URL identified is http://netcdn.tw/app/431946152/how-to-hack-people-in-roblox-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a phishing or malware distribution attempt, likely leveraging a social engineering pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/431946152/how-to-hack-people-in-roblox-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/omg-free-robuxnet16_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-spins-for-free-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-pet-food-free_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-roblox-players_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-cheat-engine-66_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-how-to-get-japan-sushi-card-free_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-things-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/tiktok-free-package_GM835599320.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/can-you-get-hacked-on-roblox-when-giving-discord_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-in-1-second_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/pubg-30-uc-free_GM1330123889.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-arcane-adventures-hack-download_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-heaven-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-no-trial-create-decals-for-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-followers-roblox-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-mad-city-roblox-cpat_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-free-exe_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000336d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x336D 22728 bytes
SHA-256: c22cca9eb87228b7740eb27d02a203ef78c47dc26ff4cf0aaa4395908003ec46
font_01_sfnt_off0000662d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x662D 19148 bytes
SHA-256: 210a0ca19f3049b49adbbe174b6d1900b8bba92406d0cafcc0c0c398ed60933b

Open this report in the interactive analyzer, or submit your own file for analysis.