Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccd5f5b51a7801b4…

MALICIOUS

PDF

44.6 KB Created: 2021-06-09 05:26:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7f30f5f607ad84d65a26fe94beb4ce29 SHA-1: dd7866482dfacfece9658713009124370b6d0746 SHA-256: ccd5f5b51a7801b438f77c3b81aa66a77851ee2e7fe294fffbffd6f1b0fac62b
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors, specifically advertising game hacks and generators. The primary lure URL is https://netcdn.tw/app/431946152/roblox-rocitizens-money-hack-game-hack, which is designed to trick users into downloading further malicious content. The document's structure and embedded links strongly suggest a phishing or social engineering attack aimed at users interested in game cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/roblox-rocitizens-money-hack-game-hack In PDF document text
    • http://gameanglinginstructors.co.uk/images/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/coin-master-free-mighty-lion-card_GM406889139.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/get-more-robux_GM431946152.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/coin-master-hack-trick-2021_GM406889139.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/free-tiktok-bots_GM835599320.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/get-robux_GM431946152.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/hack-coin-master-apk-32-download_GM406889139.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/get-free-roblox_GM431946152.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/is-pokemon-go-free-on-iphone_GM1094591345.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/roblox-free-hair-codes_GM431946152.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/tiktok-i-feel-kinda-free-song_GM835599320.pdfIn PDF document text
    • http://gameanglinginstructors.co.uk/images/free-online-minecraft-server_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_004_off000050c3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50C3 24776 bytes
SHA-256: 20ab2d02a503496249023d9d499bd8176c9d559bb2229bc25037655423041ba5
font_01_sfnt_off000089ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89ED 18864 bytes
SHA-256: 6e8bbaea1ed15bb79c07efc7bfb9d857cebd027f4464af1744e02562d8894b46

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