Malicious PDF — malware analysis report

Static analysis result for SHA-256 05cb1f7c15c05235…

MALICIOUS

PDF

43.1 KB Created: 2021-05-13 14:01:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d860be2b5775b778cad8292362c4b817 SHA-1: b0b8a5d950b56a0f250eb3888420a019521de121 SHA-256: 05cb1f7c15c05235efaf3ce1a23f874d97fe5d1a7f545f016646a3540f510080
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to websites offering game hacks and free in-game items, a common lure for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious, and heuristics indicate it links to known malicious redirector infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to drive users to malicious content.

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/406889139/coin-master-pet-food-free-game-hack In PDF document text
    • http://apostolosandreaslemesou.com/images/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/coin-master-ultra-attack-hack_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/coin-master-game-hack-version-download_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/roblox-adopt-me-free-pets_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/free-coin-master-glitches_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/coin-master-mod-apk-hack_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/minecraft-pocket-edition-free-apk_GM479516143.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/roblox-gang_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/juego-hackeado-de-coin-master_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000498e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x498E 26868 bytes
SHA-256: 91d45b8c0475d3dcb72948ce87eea7460090fff25fdb72d380ae6a52d431b4ab
font_01_sfnt_off00008705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8705 18040 bytes
SHA-256: 535ede7ea2ca3106b180be61e418afdb2036289bce9acd3cf3182b6416c807a7

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