Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eba6a6f975ce054…

MALICIOUS

PDF

37.9 KB Created: 2021-05-22 15:20:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 39a38154a2b30735bdb17fc05b8e5095 SHA-1: 69d25194047d83eb6558ee41b56f1932abb6d594 SHA-256: 1eba6a6f975ce054c7543685a34d5b05c3c84ae87396f1ed8f5ae508ca625234
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links and embedded text promoting a "Coin Master Free Gifts" generator, which is a common lure for phishing or malware distribution. The primary link redirects to a known malicious domain, indicating a redirection attack. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to exploit user interest in game-related cheats to redirect them to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7010

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/406889139/coin-master-free-gifts-game-hack In PDF document text
    • https://www.elevage-chiot.fr/images/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000307b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x307B 25048 bytes
SHA-256: 63a8f3568bf7e8201ab74a3040c970640ab5d0828693bfe7ea0cd58cfe775616
font_01_sfnt_off00006a61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A61 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off0000744b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x744B 17712 bytes
SHA-256: 401d56b29285354d6954c3c26e793cbeb56329cdc5209d9139ec018457d4ba23

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