Malicious PDF — malware analysis report

Static analysis result for SHA-256 520a730e0ff30e10…

MALICIOUS

PDF

42.4 KB Created: 2021-05-17 20:58:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 165dbedebc89aadfcec8ac1e5ee6401a SHA-1: 58f44098f67aa314de697004ec58ae89bacc56e0 SHA-256: 520a730e0ff30e10cf83af18a206ddba2d0a2e26f9f9b74a0433bb1b64ddf8e8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, masquerading as "game hacks" and "generators". The primary lure is a "Coin Master Hack" which directs users to the URL https://netcdn.xyz/app/406889139/coin-master-hack-app-link-game-hack. The document's structure and embedded links strongly suggest a phishing or scam attempt designed to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/coin-master-hack-app-link-game-hack In PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/coin-master-hack-fast_GM406889139.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/how-to-robux_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/are-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/coin-master-club-hack_GM406889139.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/free-roblox-accessories_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/download-hacked-games-com-coin-master_GM406889139.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/robux-without-verification_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/gamesofficenet-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/coin-master-free-stuff-links_GM406889139.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://xn--80aeb7bbceeegc.xn--p1ai/images/coin-master-free-spin-and-coin-links_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004bbc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BBC 24740 bytes
SHA-256: 0df4452c415f05d7a32c996021e2fcbbed1289420ad8b392d9b4ff6be3ed9c94
font_01_sfnt_off0000848b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x848B 17892 bytes
SHA-256: f939fda97690d6a809d743b342add8ec97984f5e978608423f32dd39679c4d64

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