Malicious PDF — malware analysis report

Static analysis result for SHA-256 e924bcf27ba15291…

MALICIOUS

PDF

42.4 KB Created: 2021-05-10 22:30:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9cbc7c6df36dd2bda5425205d6623791 SHA-1: 20037f6526e735ff9e9cc2285d8dcec634e5e651 SHA-256: e924bcf27ba15291510ed2d80b484beb62a9916f99aba3bce9cbab0035720b56
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-rewards-game-hack PDF link annotation
    • http://www.eurologistiki.gr/images/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/free-coins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/robux-codes_GM431946152.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/free-spins-coin-master-october-17-2021_GM406889139.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/instant-robux_GM431946152.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/google-roblox-games_GM431946152.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/how-to-get-free-followers-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/coin-master-hacks-for-gold-cards_GM406889139.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/infinite-robux_GM431946152.pdfIn PDF document text
    • http://www.eurologistiki.gr/images/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.roblox.coIn 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_off00004969.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4969 24672 bytes
SHA-256: 56adea0435697f355754f7311bc3e257f2eb3b70f4b26c4472c91899f117f997
font_01_sfnt_off00008268.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8268 18580 bytes
SHA-256: f6e5d240c50f73aa936fa09c98082d3b637660329d811c3f0d463ac63f7ff7de