Malicious PDF — malware analysis report

Static analysis result for SHA-256 d19a9563b29ac510…

MALICIOUS

PDF

49.8 KB Created: 2021-05-11 01:39:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a9b77da82df8f2c8d69683f3747c501a SHA-1: 6cd4c868d26f0b69c1c7e404f2b4fd33280190ae SHA-256: d19a9563b29ac510870fadf2785eb2e74048dfb36c4b17154377d97fcf858c64
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as generators for game hacks and free currency. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and 'PDF_MALICIOUS_REDIRECTOR_LINK' indicate that the primary function of this document is to redirect users to malicious infrastructure. While no scripts were explicitly extracted, the nature of the links suggests a potential for further malicious activity, such as downloading additional payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9349

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/406889139/free-coins-for-coin-master-blogger-game-hack In PDF document text
    • https://donrazvitie.ru/images/minecraft-server-free-trial_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/roblox-free-item-codes_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/coin-master-free-coins-and-spins-group_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/robux-gratis_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-coins-2021-coin-master-link_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/coin-master-free-spins-and-coins-group_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/blox-fun-info_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • https://donrazvitie.ru/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://donrazvitie.ru/images/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://donrazvitie.ru/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004804.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4804 31008 bytes
SHA-256: 5acd57434272e666dbf95b9b90f867736dcb6f7f6dcb178809eeee2ed1628518
font_01_sfnt_off00008bff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BFF 8676 bytes
SHA-256: e06aca5f85e50ae6cefda302c5299c18ab6d27c174f74f0bb0ee8efa7ccb4468
font_02_sfnt_off0000a08a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA08A 18288 bytes
SHA-256: 525699ae71861fffeab431a07c950b4914d38a871fb98becad0e0bea9ac3f1df