Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed84a316690633d5…

MALICIOUS

PDF

41.7 KB Created: 2021-05-15 06:39:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 07bc341ad5e0d83acf405794bf869926 SHA-1: 866bd0efdf7c0fd96395e47f921ed9c16599a2b2 SHA-256: ed84a316690633d52db6b9faa903812814674ea6cda9425561d0801b252c2b51
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'generators'. The presence of multiple links to similar lure content and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful sites. No scripts were extracted, but the document's structure and links strongly suggest a phishing or social engineering attack.

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/479516143/minecraft-java-hacks-game-hack In PDF document text
    • https://roberto-gac.com/images/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • https://roberto-gac.com/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://roberto-gac.com/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://roberto-gac.com/images/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://roberto-gac.com/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://roberto-gac.com/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://roberto-gac.com/images/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • https://roberto-gac.com/images/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://roberto-gac.com/images/free-dominus-roblox_GM431946152.pdfIn PDF document text
    • https://roberto-gac.com/images/picture-roblox_GM431946152.pdfIn PDF document text
    • https://roberto-gac.com/images/jailbreak-script_GM431946152.pdfIn PDF document text
    • https://roberto-gac.com/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://roberto-gac.com/images/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://roberto-gac.com/images/coin-master-free-coins--spins_GM406889139.pdfIn PDF document text
    • https://roberto-gac.com/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://roberto-gac.com/images/roblox-com-www_GM431946152.pdfIn PDF document text
    • https://roberto-gac.com/images/minecraft-windows-10-mod-menu_GM479516143.pdfIn PDF document text
    • https://roberto-gac.com/images/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • https://roberto-gac.com/images/se-puede-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://roberto-gac.com/images/how-to-get-free-robux-on-pc_GM431946152.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
stream_003_off00004945.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4945 25128 bytes
SHA-256: 52ddebf922597d018cb0ec119f86fd7cfa8dbb1d5b5d21dae20121bce8d8cf1f
font_01_sfnt_off00008159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8159 18020 bytes
SHA-256: 2aa5f75731ce228eb108c5d7ba78fcf9c19ee4c9e640e1738d5748e499ff9746