Malicious PDF — malware analysis report

Static analysis result for SHA-256 33de4f8b991ac99f…

MALICIOUS

PDF

43.3 KB Created: 2021-05-11 01:00:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ce49cf3a264fe2fc2ceb58a3b5a1872d SHA-1: 5ed86cf1f97afe08f2a71bf937448e13804d4605 SHA-256: 33de4f8b991ac99f475ee22e102d896fe406e4c522fdaecf081fc10456fa997c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector infrastructure, specifically promoting "Coin Master Hack" and similar game-related lures. The presence of these links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful websites. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-hack-no-human-verification-game-hack In PDF document text
    • http://www.e-lysis.com/images/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.e-lysis.com/images/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • http://www.e-lysis.com/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://www.e-lysis.com/images/get-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://www.e-lysis.com/images/arsenal-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://www.e-lysis.com/images/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • http://www.e-lysis.com/images/coin-master-hack-spin-ios_GM406889139.pdfIn PDF document text
    • http://www.e-lysis.com/images/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.e-lysis.com/images/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://www.e-lysis.com/images/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.e-lysis.com/images/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://www.e-lysis.com/images/jailbreak-script_GM431946152.pdfIn PDF document text
    • http://www.e-lysis.com/images/minecraft-free-download-apk-softonic_GM479516143.pdfIn PDF document text
    • http://www.e-lysis.com/images/free-roblox_GM431946152.pdfIn PDF document text
    • http://www.e-lysis.com/images/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.e-lysis.com/images/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://www.e-lysis.com/images/coin-master-free-spins-gratis_GM406889139.pdfIn PDF document text
    • http://www.e-lysis.com/images/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://www.e-lysis.com/images/free-spin-coin-master-today_GM406889139.pdfIn PDF document text
    • http://www.e-lysis.com/images/minecraft-wurst-hacked-client_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
stream_003_off000048ef.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48EF 25368 bytes
SHA-256: 2e93663bcb31562e4eee547326d99a9767184882a5f3d631c516794b6e8e8db9
font_01_sfnt_off000082ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82ED 19576 bytes
SHA-256: 08d216e9427e909cd15f3b78ed6ee11f399d5aacb623492a8a5f702200d4f688

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