Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ce78b2274c61f89…

MALICIOUS

PDF

42.3 KB Created: 2021-05-14 09:05:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4908a337872123766caf0f987809e7f2 SHA-1: 83c265e151a12f10d0a272aa5718bfe7460bc5a9 SHA-256: 2ce78b2274c61f8971735482f0710cd638ed6d5d0ecf6ce77a96198921815cd6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to malicious redirectors, specifically advertising 'free generator / game hack' lures for popular games. The document body and embedded URLs strongly suggest a phishing or scam attempt to trick users into visiting malicious sites. While no scripts were explicitly extracted, the PDF format itself can embed JavaScript, and the heuristic firings indicate malicious redirection is the primary function.

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/431946152/roblox-generator-game-hack In PDF document text
    • http://codicicolori.com/images/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://codicicolori.com/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://codicicolori.com/images/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
    • http://codicicolori.com/images/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdfIn PDF document text
    • http://codicicolori.com/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://codicicolori.com/images/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://codicicolori.com/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://codicicolori.com/images/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://codicicolori.com/images/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://codicicolori.com/images/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://codicicolori.com/images/coin-master-free-stars_GM406889139.pdfIn PDF document text
    • http://codicicolori.com/images/roblox-hair-for-free_GM431946152.pdfIn PDF document text
    • http://codicicolori.com/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://codicicolori.com/images/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://codicicolori.com/images/win-free-robux_GM431946152.pdfIn PDF document text
    • http://codicicolori.com/images/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://codicicolori.com/images/can-you-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://codicicolori.com/images/hack-para-coin-master-singapore_GM406889139.pdfIn PDF document text
    • http://codicicolori.com/images/coin-master-daily-free-spins-and-coins-2021_GM406889139.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_off00004913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4913 25280 bytes
SHA-256: bb0262da587ebfab6d7b47ddd2773607353d094888ae2b5cdd0e23c93fcc0a6c
font_01_sfnt_off0000835f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x835F 18116 bytes
SHA-256: 124341eb3a4a3b8bc1f076925fa8461137298bb957754babdcbe9c7592fcce55