Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad8316a49b69fefb…

MALICIOUS

PDF

43.4 KB Created: 2021-05-12 09:38:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 1a548538881e85dc01d166b5a1016aab SHA-1: 22573e6ab1992f50c3823a8b70ec229267fc0157 SHA-256: ad8316a49b69fefba131903414bff5e825a632210a2c268a82fe54a43067341c
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 0.9969

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/coin-master-hack-2021-ios-game-hack PDF link annotation
    • http://lib.pps.uin-suka.ac.id/repository/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/minecraft-images-free_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/how-to-get-free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/minecraft-tower-defense-hacked_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-strategy_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/is-coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-hack-iphone_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/minecraft-for-ps3-free_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/minecraft-pocket-apk_GM479516143.pdfIn PDF document text
    • http://lib.pps.uin-suka.ac.id/repository/mc-hacks_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_003_off00004ad9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AD9 29064 bytes
SHA-256: 58c25f8a5d1619dad54b609323e1ecde77bf2b9bb8b6f5b3843129cc250d06d0
font_01_sfnt_off000087cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87CB 18116 bytes
SHA-256: 77442674c0809aead75be931568f5718e5115af80d9dd84d81b0bed7d24a7281

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