Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e09d74949a6a71d…

MALICIOUS

PDF

41.2 KB Created: 2021-05-16 21:19:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 11f6da212e1f90e1528aba520ff86a65 SHA-1: eeb5975f1366affc14491a0de80a07e7194b3f8e SHA-256: 2e09d74949a6a71d05c84d9021b531533c22bc1fef12d6ccf71fd038c755b3e0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'rewards'. The ML classifier strongly flagged this PDF as malicious. The presence of embedded URLs and the lure of free in-game currency or items suggest a phishing or scam attempt designed to lead 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/406889139/coin-master-rewards-app-game-hack In PDF document text
    • http://www.vktzunami.cz/images/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/coin-master-code-hack_GM406889139.pdfIn PDF document text
    • http://www.vktzunami.cz/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • http://www.vktzunami.cz/images/free-spin-and-coin-blogspot_GM406889139.pdfIn PDF document text
    • http://www.vktzunami.cz/images/free-robux-site_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://www.vktzunami.cz/images/hack-para-coin-master-singapore_GM406889139.pdfIn PDF document text
    • http://www.vktzunami.cz/images/free-pet-food-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vktzunami.cz/images/how-to-duplicate-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://www.vktzunami.cz/images/card-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vktzunami.cz/images/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.vktzunami.cz/images/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://www.vktzunami.cz/images/how-to-get-minecraft-for-free-on-mobile_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_003_off00004884.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4884 24004 bytes
SHA-256: 60d092b84b17c6254a3c93d6c59a9f656b167304d2c170ca1d8493763c617ae6
font_01_sfnt_off00007f2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2C 18060 bytes
SHA-256: 1ace4c7085401291f58e102c272718a2ec9341f0a4396f264039734a0ad902b6

Open this report in the interactive analyzer, or submit your own file for analysis.