Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9c0e8cf8fc32b4b…

MALICIOUS

PDF

34.5 KB Created: 2021-07-09 16:17:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b49fc8a540062dd6c549324616da1503 SHA-1: aa4658575db8eb1e312f912d0fea562bf30e4f60 SHA-256: b9c0e8cf8fc32b4b8794b744fd2da4856610d39e2a97d5d504af8906540af3f7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links designed to lure users into downloading game hacks or cheats, which is a common social engineering tactic. The primary link redirects to a known malicious infrastructure, indicating a high likelihood of malware distribution or further phishing attempts. No scripts were extracted, but the document's structure and embedded URLs strongly suggest it's part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/minecraft-hacked-client-download-game-hack In PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/coin-master-hack-apk-35-13_GM406889139.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/roblox-catalog-all-free-items_GM431946152.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/free-bc-accounts-roblox-2021_GM431946152.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/coin-master-free-mighty-lion-card_GM406889139.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/roblox-robux-hacks-for-free-robux_GM431946152.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/roblox-hack-no-survey-or-human-verification-or-offers_GM431946152.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/free-robux-scam-game_GM431946152.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/gtools-roblox-hack_GM431946152.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/ninja-legends-roblox-hack-script_GM431946152.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/hacks-roblox-my-hero-academia-2021_GM431946152.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/hack-para-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/how-to-get-free-robux-2021-easy-phone_GM431946152.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/download-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://susantomeubel.com/ckfinder/userfiles/files/free-robux-without-verification-or-survey_GM431946152.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_off00003032.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3032 22832 bytes
SHA-256: 2acd84156198a97396a49d2684a1a03dd3da8c698e3fbfdfecf3607d89f99923
font_01_sfnt_off000062d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D5 18748 bytes
SHA-256: aa0b1002d10e7fb60172ce49cbdaa5952bdb54bf3081edf3cb6a3acd957b60a1

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