Malicious PDF — malware analysis report

Static analysis result for SHA-256 0568ed7750a08a16…

MALICIOUS

PDF

43.7 KB Created: 2021-05-16 12:02:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d45754cef62eb0b8b74a61e2ce89d906 SHA-1: a3262eb52593e23b4844d78e7ab58edf8ded28de SHA-256: 0568ed7750a08a16a59f9c98dee08c4f4a4a91d4964b22ad51401de39001ecb7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising 'free Robux' and 'game hacks' to lure victims. The primary redirector URL is https://netcdn.xyz/app/431946152/free-robux-with-no-verification-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt, likely leading to further malicious content or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-robux-with-no-verification-game-hack In PDF document text
    • http://algierimasonry.com/images/how-can-i-get-free-coinsn-coin-master_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/how-do-you-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://algierimasonry.com/images/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • http://algierimasonry.com/images/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/daily-coin-master-free_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • http://algierimasonry.com/images/minecraft-cheat-client_GM479516143.pdfIn PDF document text
    • http://algierimasonry.com/images/unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/coin-master-free-spins-without-verification_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/100-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://algierimasonry.com/images/coin-master-hacks-reddit_GM406889139.pdfIn PDF document text
    • http://algierimasonry.com/images/how-many-levels-are-there-in-coin-master_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_off00004b67.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B67 25912 bytes
SHA-256: ad6592774b495f0423e286b37587f95c94754767af8ea0be33d0a686075e3d9e
font_01_sfnt_off0000865a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x865A 18964 bytes
SHA-256: 882e97bebd076dae688415b0184bb224dca7d5b64082a0b27c077a0c76cfc979

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