Malicious PDF — malware analysis report

Static analysis result for SHA-256 62f86af3f9490bb4…

MALICIOUS

PDF

42.3 KB Created: 2021-05-10 21:01:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 14e4ef6f7865c413ae3b68469571bffc SHA-1: e29cb35e3548e0322ee3e8663a38d1c7ce984b63 SHA-256: 62f86af3f9490bb44024402d8021b6318aad09c8b5441b9af1a3063f4f96ba41
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of 'free generator / game hack' to entice users to click on a link. The primary malicious URL identified is https://netcdn.xyz/app/406889139/blogger-coin-master-free-spins-game-hack, which is likely a redirector to a malicious payload or phishing site. The document's structure and embedded links suggest a social engineering tactic to compromise the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/blogger-coin-master-free-spins-game-hack PDF link annotation
    • http://digilib-unirow.ac.id/repository/toolbox-for-minecraft-pe-ios_GM479516143.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/coin-master-free-daily-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/how-to-download-minecraft-for-free-on-windows-10_GM479516143.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/roblox-ftw_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/freespinandcoin-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/free-roblox-svg_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/coinmaster-links_GM406889139.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/free-account-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/spin-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/coin-master-redeem-code-free_GM406889139.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/free-spins-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/free-spins-coin-master-app_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
stream_003_off000049be.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49BE 25108 bytes
SHA-256: 58290375ee0f0fc7598bfdff060da65e0613964b57e9752e5653550f1e5ea191
font_01_sfnt_off000082aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82AA 18464 bytes
SHA-256: 0911799b9aa5b6ecf8f75e1ae71094da345a4ed5579c86b7800e8f9c3f9f610d

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