Malicious PDF — malware analysis report

Static analysis result for SHA-256 702d4a7f42145f13…

MALICIOUS

PDF

44.2 KB Created: 2021-05-16 10:40:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 4e248aaa74ed649ab21c9d322036f307 SHA-1: 48b8cc687ea79c35a1f2bdcbfc3d94631b1a7e2b SHA-256: 702d4a7f42145f131f237834126f5a039c66643b6fbaba8ea8efcd6d24b8d367
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, 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 0.9980

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/406889139/mangocheats-com-hack-coin-master-cheat-game-hack PDF link annotation
    • https://kinderdam.nl/images/_GM479516143.pdfIn PDF document text
    • https://kinderdam.nl/images/free-roblox-hair-girl_GM431946152.pdfIn PDF document text
    • https://kinderdam.nl/images/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • https://kinderdam.nl/images/coin-master-date-and-time-hack_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • https://kinderdam.nl/images/coin-master-in-app-purchase-hack_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://kinderdam.nl/images/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/how-to-get-spins-for-free-on-coin-master_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/free-spins-for-coin-master-that-work_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/how-do-you-earn-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/coin-master-hack-2021-ios-download_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • https://kinderdam.nl/images/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://kinderdam.nl/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://kinderdam.nl/images/coin-master-spins-for-free_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/free-spins-on-coin-master-link_GM406889139.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_off00004a6a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A6A 29328 bytes
SHA-256: c9588c3f4fdc2a0b80723b849dceec9c7e1c550d574c4ea919cd0cf76d950f01
font_01_sfnt_off00008a4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A4D 18428 bytes
SHA-256: 4e99dec5d3f02dcbc06ca26300d3045f9b8d8d35bff9f7dc87105fb536b7f18c

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