Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9abf71489245c1e…

MALICIOUS

PDF

42.5 KB Created: 2021-05-17 03:24:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 29c1fa790eab2fcb3b19b1e750caa8d3 SHA-1: d142c9f7c69b2d6bfb83b6a0f82f34323010e7d1 SHA-256: a9abf71489245c1e992472f3285390b75429b9243d51614635fc636cf4e5bdc9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for "free spins" and "game hacks" pointing to a suspicious URL. The ML classifier strongly indicated maliciousness, and the presence of multiple embedded URLs suggests a phishing or scam attempt. Although no scripts were explicitly extracted, the PDF format can embed JavaScript, which is often used to redirect users or download further payloads.

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/free-spins-coin-master-2021-app-game-hack PDF link annotation
    • http://newdirectionsforautism.org/images/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/free-spins-coin-master-app-iphone_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/coin-master-hack-tool-v1-9-download_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/coin-master-free-spins-usa-2021_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/coin-master-hack-apk-latest-version-2021_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/roblox-free-vip-server_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/free-roblox-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/free-robux-without-human-verification-real_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_off000049f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49F1 24924 bytes
SHA-256: 977e8bd644075a1ce86fbbc31773817b601eb07cad895216384a77617f5d788c
font_01_sfnt_off000083a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A6 18288 bytes
SHA-256: 6b6cd7167012eeb1812e943ff49937c2219a320edcaba7462c006fdd54a5786c

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