Malicious PDF — malware analysis report

Static analysis result for SHA-256 49453f8529b1568c…

MALICIOUS

PDF

35.3 KB Created: 2021-07-05 14:15:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: c9b4b815979e97cbe552f777edda9078 SHA-1: 604978f21a2781835e2c88d1b1d54e6236915d2e SHA-256: 49453f8529b1568c4d8b949761997147ff06cb44784cd574654c8116ba983133
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document uses a lure related to 'Roblox Hack Program Download' and contains numerous embedded URLs pointing to potentially malicious content. The primary URL, http://netcdn.tw/app/431946152/roblox-hack-program-download-game-hack, is flagged as a redirector for game hacks, indicating a likely attempt to deliver a second-stage payload or lead the user to a phishing site. No scripts were extracted, but the document's structure and embedded links strongly suggest a social engineering attack.

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/roblox-hack-program-download-game-hack PDF link annotation
    • http://lib.akpnbahtera.ac.id/repository/is-roblox-free-on-xbox_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/how-to-tell-if-you-have-been-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/roblox-place-rewards_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-robux-no-human_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-roblox-cards-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/top-free-rthro-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-roblox-shirts-free-shipping_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/get-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/free-roblox-accounts-with-builders-club_GM431946152.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/coin-master-hack-tips_GM406889139.pdfIn PDF document text
    • http://lib.akpnbahtera.ac.id/repository/how-to-change-roblox-name-for-free_GM431946152.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_off00003070.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3070 22680 bytes
SHA-256: fa8810d6e9f49aedbc434f7c110a5f60104e32ad8d641298d0a692db334b81fa
font_01_sfnt_off00006356.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6356 19576 bytes
SHA-256: 92f275fef95c10411c3d9eac2605dff2a40847ff1790b229f380c56d6b79ce09

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