Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e034ec67eab5d79…

MALICIOUS

PDF

34.4 KB Created: 2021-07-21 04:46:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7b7900cd284d6926a936e23d72c055c9 SHA-1: 646e88836378f78576d43287c0429f67e4afd8db SHA-256: 4e034ec67eab5d7940f8b3a80fa75ee63bc1eed64a001dd5fb7dacc27ae2200d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically promoting 'free generators' and 'game hacks' for popular games. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to lure users to these malicious sites. While no scripts were explicitly extracted, the nature of the links and the heuristic firings indicate a high likelihood of malicious redirection, potentially leading to further malware downloads or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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-pe-for-free-game-hack In PDF document text
    • http://caraless.com/images/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://caraless.com/images/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://caraless.com/images/free-robux-please_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://caraless.com/images/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/free-robux-working_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/minecraft-free-download-windows_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_off000032ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32ED 23000 bytes
SHA-256: 9cbf9f1f13d23878e88a4faa2143b90affee69cc79a70fe226b357f6153e464d
font_01_sfnt_off00006598.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6598 18028 bytes
SHA-256: 3ed4cc32a3614fc42f77637b5226aac8e96d41a1bdab71d116d218547dfdfc35