Malicious PDF — malware analysis report

Static analysis result for SHA-256 a24ed3f1c8eaac90…

MALICIOUS

PDF

41.8 KB Created: 2021-05-19 23:00:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 16177178801ea1ac22bc3a40738e8f86 SHA-1: 43a23371884ad05b62e93dc9a2e06f90a8358e87 SHA-256: a24ed3f1c8eaac904ab6b5d4628408e82f7af7dcd8f32c59af878833c2163d75
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites that are flagged as malicious redirectors, specifically promoting 'free Robux' and 'game hacks'. The document body and heuristics indicate a lure to click these links, likely leading to phishing or scam pages. Although no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious intent 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/431946152/free-robux-no-verification-game-hack In PDF document text
    • https://successfulauto.ru/images/minecraft-free-version_GM479516143.pdfIn PDF document text
    • https://successfulauto.ru/images/free-roblox-generator_GM431946152.pdfIn PDF document text
    • https://successfulauto.ru/images/coin-master-heaven-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://successfulauto.ru/images/coin-master-free-spins-8-14-2021_GM406889139.pdfIn PDF document text
    • https://successfulauto.ru/images/how-to-hack-coin-master-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • https://successfulauto.ru/images/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://successfulauto.ru/images/coin-master-free-food_GM406889139.pdfIn PDF document text
    • https://successfulauto.ru/images/roblox-c9m_GM431946152.pdfIn PDF document text
    • https://successfulauto.ru/images/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • https://successfulauto.ru/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://successfulauto.ru/images/best-free-minecraft-server-hosting-reddit_GM479516143.pdfIn PDF document text
    • https://successfulauto.ru/images/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • https://successfulauto.ru/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://successfulauto.ru/images/freerobux-co_GM431946152.pdfIn PDF document text
    • https://successfulauto.ru/images/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • https://successfulauto.ru/images/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://successfulauto.ru/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://successfulauto.ru/images/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • https://successfulauto.ru/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://successfulauto.ru/images/how-to-robux_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_off0000498c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x498C 23928 bytes
SHA-256: db92dada8c3657bc9d50ddac58004ef825ad46c5d99ab2a28166046ba0ff7ca7
font_01_sfnt_off00007ff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF7 18600 bytes
SHA-256: 361892a278de990f6dfe9fe9f512a0ec39aeba1740037781b92f32c6ad2b5051

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