Malicious PDF — malware analysis report

Static analysis result for SHA-256 93028d56943edf1a…

MALICIOUS

PDF

47.8 KB Created: 2021-05-17 16:04:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: c66cc31c3bd7a7aeeb1d678bb91540ca SHA-1: 72e469cd3ece47a31fced3f9827bd66e14ade81d SHA-256: 93028d56943edf1a13239b9f46c477795e697c56b7a6cfacacdcf155b3343056
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting game hacks and generators. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves luring users into clicking these links, likely leading to further malware downloads or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8715

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/431946152/free-draw-roblox-game-hack In PDF document text
    • http://italymania.ru/images/coin-master-hack-mod-apk-android-1_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/free-robux-android_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/minecraft-free-school_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-hack-no-survey-2021_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-hack-spins-app_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-free-spin-download_GM406889139.pdfIn PDF document text
    • http://italymania.ru/images/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://italymania.ru/images/coin-master-free-spins-for-today_GM406889139.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004701.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4701 24952 bytes
SHA-256: cc937d6708fe889dcc9c02ed97f28c1df0d6d49159f73b72644ce4220709da16
font_01_sfnt_off000080ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80AD 2844 bytes
SHA-256: baad2f3f6808f4af03fa9398e38c580c8d846f7f773a947d8cc1f39b2753d31a
font_02_sfnt_off00008a6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A6A 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_03_sfnt_off00009711.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9711 18508 bytes
SHA-256: f910b5e05dc090141321478ad8f2371d3108a4bfaceab19230c4d52c6f4382ac

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