Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b28582372ab9863…

MALICIOUS

PDF

34.0 KB Created: 2021-07-05 05:23:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 17b594e1d4666dce7e1b2547e8d7817e SHA-1: 25003b950fb60d24560132e3ac6dac88cb69904a SHA-256: 1b28582372ab9863b6118bfa6826570c629f8d4247579b7977e0477d43766c87
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/spin-coin-master-hack-game-hack PDF link annotation
    • http://uilis.unsyiah.ac.id/ebook/repository/earn-roblox_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/working-roblox-hack-ddls_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/roblox-admin-script-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/impact-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-script-executor-lvl-7-roblox_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/robux-free-hack-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/how-to-win-attack-madness-in-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/coin-master-daily-spin-link-app_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/roblox-its-free-earrape_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/roblox-virus-free_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-spins-for-coin-master-that-work_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/cheat-engine-fighters-beta-how-to-level-up-fast-roblox_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/robux-code-redeem-free_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/coin-master-free-daily-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/hack-roblox-ultimate-driving_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-games-at-roblox-com-browser_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/ifninite-jump-roblox-hack_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/this-group-gives-you-free-robux_GM431946152.pdfIn PDF document text
    • http://uilis.unsyiah.ac.id/ebook/repository/free-pets-on-adopt-me-roblox_GM431946152.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
font_00_sfnt_off0000300b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x300B 22576 bytes
SHA-256: 2c359e4741f06f0da4275c93860b9df97a52aeb9b837502d4ddbfa54363bde4e
font_01_sfnt_off00006272.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6272 18180 bytes
SHA-256: a457c3dc74b8cb4e60522bbc79d80e21df296d3e2b3a7f7265d5b124833b11dd

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