Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1e68e5ba6260c8a…

MALICIOUS

PDF

33.7 KB Created: 2021-07-04 08:10:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 170017bfdf6796ee6982097e3dbd201a SHA-1: 8af64a814dc34d946e769436595380d93b6da9f9 SHA-256: b1e68e5ba6260c8abcb9b0547b9a074bf6cd535b8fe4f3019c01c2f062865f1f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-risk heuristic firing for a game hack lure, directing users to a suspicious URL. The document body and embedded URLs reinforce this lure by referencing game hacks and free in-game items. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to redirect users to a malicious site, likely for credential harvesting or malware delivery.

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-girl-avatar-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/fun-robux-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-op-weapons-in-your-inventory-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-accounts-2021-bugmenot_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/corrupt-free-roblox-torso_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-accessories_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-giveiaway_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/android-1-hack-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-free-download-no-virus-and-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/ww-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-coin-master-link_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/counter-blox-roblox-offensive-esp-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-daily-free-coins-link-today_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/tiktok-fame-free_GM835599320.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-para-atravesar-paredes-en-roblox-2021-en-cualquier-juego_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-recorses-on-roblox_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_off00002d82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D82 22268 bytes
SHA-256: e71f4b25aa15224bcd165744895aa95111dd91e96a5c4b4241c5284870bbc760
font_01_sfnt_off00005ef8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF8 18824 bytes
SHA-256: a049bc211159218bd83ce46d7963f6a91c240f948409f01e9ddd8b42dda3a560

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