Malicious PDF — malware analysis report

Static analysis result for SHA-256 88c371bcccb09c80…

MALICIOUS

PDF

41.3 KB Created: 2021-05-19 13:51:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 514c0d07fab8f38f36802c8ac12de3f1 SHA-1: a7eaa379652edb86d9bf47a5970229cde47dd5b2 SHA-256: 88c371bcccb09c803cf956ed782f7be0bc5ac144cf343cc42ce764a5e14f3562
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and game-related cheat lures, indicating a phishing or scam attempt. The presence of embedded URLs and the ML classifier's high confidence score support this assessment. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a workflow designed to redirect users to potentially harmful 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/1330123889/pubg-uc-ykleme-hile-game-hack In PDF document text
    • https://pompesfunebresleveque.fr/images/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/www-free-robux-com_GM431946152.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/coin-master-hack-programmers_GM406889139.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/coin-master-hack-trick-2021_GM406889139.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/earn-robux-sites_GM431946152.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/coin-master-attack-block-hack_GM406889139.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/get-me-free-robux_GM431946152.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/roblox-ban_GM431946152.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_off0000462e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x462E 24640 bytes
SHA-256: c1ccba3515efc32a662978d551770a07a02819bbc7fce5b5551d542a505b4c1a
font_01_sfnt_off00007e13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E13 18684 bytes
SHA-256: f22f4558e9f490bc4ea48dd752dc0a28496f5bac4543bfc983095526a2b1b150

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