Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea2df5e0745b19f8…

MALICIOUS

PDF

44.0 KB Created: 2021-06-03 10:53:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ffeb592d391f5893fca6cf468bcec11e SHA-1: d538159156b1f24b353ce5174fe666f84dea34c6 SHA-256: ea2df5e0745b19f8ae24e0ef99cf25c03087c7effc41ba1c2558eb574f95063c
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file employs a common lure of 'free game hacks' to entice users. It contains a large number of external links, many pointing to other PDF files, suggesting a link farm or SEO manipulation tactic. The primary redirector URL is https://netcdn.online/app/406889139/coin-master-free-gold-cards-link-2021ee-spins-game-hack, which likely serves as a gateway to further malicious content or scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/406889139/coin-master-free-gold-cards-link-2021ee-spins-game-hack PDF link annotation
    • http://digilib.unla.ac.id/repository/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-more-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/pro-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-spin-and-coin-blogspot_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-minecraft-skins-java_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/todays-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/minecraft-windows-10-key-free_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-spins-october-28-2021-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/hack-coin-master-online-without-human-verification_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_004_off00004fdd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FDD 24944 bytes
SHA-256: f4e0a24f729c221a91b7b25bc2356d4db3a14286136da448c8ef7ad8a65a6135
font_01_sfnt_off0000882f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x882F 18704 bytes
SHA-256: 057d9e4465c0f66289992e5f52dbd0f00041b076c8faaa7426171c2d0eea7a20

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