Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa7111e2f425a765…

MALICIOUS

PDF

42.4 KB Created: 2021-05-11 02:09:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: c8194cc11eb576417963005e94d02b49 SHA-1: b509065bc46bcefd2d4a1790e188d0e2636cc105 SHA-256: aa7111e2f425a765e1b38af8fb840362823701ebed2b7803eb2d2ed91bb3cf65
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing for a game hack redirect lure, pointing to a suspicious URL. The document body also contains numerous links to external resources, many of which are related to game hacks and free spins. While no scripts were explicitly extracted, the nature of the lure suggests an attempt to redirect the user to a site that may host further malicious content or attempt social engineering.

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/406889139/how-to-hack-coin-master-game-ios-game-hack PDF link annotation
    • http://miriammcconnonart.com/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/cm-free-spins_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/coin-master-hack-extension_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/free-spin-coin-master-online_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/minecraft-free-version_GM479516143.pdfIn PDF document text
    • http://miriammcconnonart.com/images/coinmaster-com_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/coin-master-official-website_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/minecraft-114-4-download_GM479516143.pdfIn PDF document text
    • http://miriammcconnonart.com/images/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://miriammcconnonart.com/images/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://miriammcconnonart.com/images/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://miriammcconnonart.com/images/coin-master-game-hack-apk_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://miriammcconnonart.com/images/facebook-coin-master_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_off000049ce.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49CE 25028 bytes
SHA-256: 2336a7c43703de3ca61de83456f094dade4ba945ef6122a883ef0cf6b417cccb
font_01_sfnt_off000083fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83FB 18140 bytes
SHA-256: b80dece7d8ec4d9222cf5aed29a2a21d72ad5f5cbe697ae1d456d8a38991e3ed

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