Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d65f51a528c0723…

MALICIOUS

PDF

46.6 KB Created: 2021-06-10 22:01:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 6b611fb10fcc46c485b9d44a03b06bf9 SHA-1: 6a3334dbccd4f060b3e81bfdbccf6eb9522bf80c SHA-256: 4d65f51a528c07234a91b3c407620bf3a8dd17d1e114e0bde3d723eb9374819a
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, including one that masquerades as a game hack generator. The document body and embedded links suggest a lure for users seeking cheats or free items, which is a common social engineering tactic. The presence of multiple redirector links indicates a high likelihood of the user being led to a malicious site designed to exploit them.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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/how-to-bypass-roblox-with-cheat-engine-game-hack In PDF document text
    • https://www.sonestad.se/library/repository/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-codes_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/without-tiktok-free-fire_GM835599320.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-hack-2-step-verification-roblox_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/roblox-points_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/earn-robux-today_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/elite-hackus-exec-roblox-wd8_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/minecraft-112-2-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-get-800-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-watch-ads-for-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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
font_00_sfnt_off00005203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5203 27040 bytes
SHA-256: fd01c6a3368938014f364b6f90843c68b63dfd376178511f2a8f8a5f98b381e0
font_01_sfnt_off00009023.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9023 19408 bytes
SHA-256: bc8c3e5c367bd6fb2a8b55f783d8359d9bc4319b9771078a8800faedde19bc6e

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