Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d1b2ed7c3e20a93…

MALICIOUS

PDF

34.0 KB Created: 2021-07-04 23:40:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 2d714ead08652adb90ed1df03246f664 SHA-1: 4b3aa3ea3eae3c908c27338de19b8b8567a0f0c4 SHA-256: 7d1b2ed7c3e20a93824d238333934a65b71d9f1ce981dd040e1993f6c14a8354
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/406889139/free-coins-and-spins-game-hack PDF link annotation
    • https://digilib.darmajaya.ac.id/repository/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/minecraft-free-download-mac-full-version_GM479516143.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/roblox-hack-menu_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/coin-master-spin-hack-no-verification_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-candy-van-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/how-can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/picture-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-robux-script_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-robux-folder_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-spin-today-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/free-robux-codes-live-youtube_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/roblox-cheat-robux_GM431946152.pdfIn PDF document text
    • https://digilib.darmajaya.ac.id/repository/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002f5a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F5A 22808 bytes
SHA-256: e0fa9c0b25b1f51b2b933927e0b391281e04f72697fee4163fd349deeb4be6fd
font_01_sfnt_off00006282.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6282 18244 bytes
SHA-256: dad70310a45e6814611ff86246f0374db0363e60694e42d40f223b2f02ed44bf

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