Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce6f639b4f3cef11…

MALICIOUS

PDF

44.0 KB Created: 2021-05-19 19:04:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9cc1003989c982f58ff8756553ee3f52 SHA-1: ff9bf94d779d157eacfce9a03c4fcbd2299629fb SHA-256: ce6f639b4f3cef1112544c5adca88f82092ddd32ffb15dca62ff57c9b724a2f9
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 0.9648

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/406889139/20-free-spins-coin-master-game-hack PDF link annotation
    • http://magnipsor.su/images/appsmob-info-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/rewardex-robux_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/apps-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/free-spin-today-coin-master_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-robux-site_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/inappropriate-roblox-games-2021_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/hack-coin-master-link_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-pet-treats-coin-master_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/get-robux-com_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47AA 24728 bytes
SHA-256: a0ee55e3dcf3263e82640c44dded23d613b4df2b27bac3ebfb87669dfa414dbe
font_01_sfnt_off00008013.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8013 2824 bytes
SHA-256: 381f6d859be141449dd645f7be1484d2a1cf49218dc471b402dae69eaa2b11d5
font_02_sfnt_off000089b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89B6 18180 bytes
SHA-256: 322b0d5b629f6df55fd3c77851cbfe7ee71104dfe1b9214827344950ced1d0df

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