Malicious PDF — malware analysis report

Static analysis result for SHA-256 402b31af0af8b844…

MALICIOUS

PDF

45.3 KB Created: 2021-05-17 11:00:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 10547fdc2027c31ea08d985c4870d8c1 SHA-1: 0f76f3e67790007826cc6129f07a1bcdf7698f6f SHA-256: 402b31af0af8b844e97197b4f89966202f2435f52e14bdb6ce3ab07e7b611331
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as "free generator / game hack" lures. The embedded URL https://netcdn.xyz/app/431946152/free-roblox-clothes-girl-game-hack is a primary indicator of this malicious redirection. The document's structure and content strongly suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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-roblox-clothes-girl-game-hack In PDF document text
    • http://jackson-pr.com/images/roblox-controversy_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-lucky-patcher-hack_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/minecraft-pe-016-0-apk-download-free_GM479516143.pdfIn PDF document text
    • http://jackson-pr.com/images/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/roblox-redeem_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/minecraft-114-4-download-free_GM479516143.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/how-to-hack-coin-master-apkmody_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/free-robux-com_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/how-to-earn-robux_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://jackson-pr.com/images/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://jackson-pr.com/images/minecraft-items_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004bcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BCC 30036 bytes
SHA-256: ff4c617ee7dc51919a4432c9887460f425de29d0f5ea3c056b3a706ed6c91c8c
font_01_sfnt_off00008ec6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EC6 18340 bytes
SHA-256: d29ec2e71bb068e77f351b4d123c990b41e31d257b9d9cf8b177703eed95a4a4

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