Malicious PDF — malware analysis report

Static analysis result for SHA-256 567a55f73b565de6…

MALICIOUS

PDF

34.8 KB Created: 2021-07-19 16:51:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fff84132dfd289122ad48eab67c6933c SHA-1: 3c6d55db0321ae2569c179b0d41b29f34a7aa254 SHA-256: 567a55f73b565de6ddf46ac253e7c5bd0176ec76d7911b58a2849df2b327b3e7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as "game hacks" or "free generators" for popular games. The document body and embedded links suggest a lure to trick users into visiting these malicious sites, which likely serve as a distribution point for further malware or phishing content. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9962

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 http://netcdn.tw/app/479516143/how-to-get-minecraft-for-free-on-iphone-game-hack In PDF document text
    • http://xn----7sbq6amdnuk.xn--p1ai/images/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://xn----7sbq6amdnuk.xn--p1ai/images/free-minecraft-website_GM479516143.pdfIn PDF document text
    • http://xn----7sbq6amdnuk.xn--p1ai/images/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://xn----7sbq6amdnuk.xn--p1ai/images/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://xn----7sbq6amdnuk.xn--p1ai/images/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://xn----7sbq6amdnuk.xn--p1ai/images/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://xn----7sbq6amdnuk.xn--p1ai/images/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://xn----7sbq6amdnuk.xn--p1ai/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://xn----7sbq6amdnuk.xn--p1ai/images/free-tiktok-like_GM835599320.pdfIn PDF document text
    • http://xn----7sbq6amdnuk.xn--p1ai/images/free-coin-master-coins-and-spins_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_off000032dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32DD 23080 bytes
SHA-256: cc51b6454cdce547d8ade468b31048e77bc98f858066f56a18a53db2bdc59b9f
font_01_sfnt_off000066a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66A4 18216 bytes
SHA-256: bed6c76176a434f358ebc88a31d2dbe88cb1547cd8758d4c9ade2f80066016aa

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