Malicious PDF — malware analysis report

Static analysis result for SHA-256 397eb9807ad28f1e…

MALICIOUS

PDF

41.3 KB Created: 2021-05-12 16:01:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: de5563328353fc3fb3d23e75ed333d49 SHA-1: 05e3bfae5b986c1d975ccefdfcb8585d25c262ee SHA-256: 397eb9807ad28f1e587ea0085cbb8477df1f859d617d13f02536183ed57755d2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free robux' and 'game hacks', directing users to external URLs that host further malicious PDFs. The ML classifier strongly flagged this PDF as malicious. The embedded links and the document's content suggest a phishing or scam attempt to trick users into downloading further malware or visiting malicious sites.

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/rbl-gg-free-robux-game-hack PDF link annotation
    • http://lach-hotels.com/images/free-robux-earn_GM431946152.pdfIn PDF document text
    • http://lach-hotels.com/images/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • http://lach-hotels.com/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://lach-hotels.com/images/coin-master-com_GM406889139.pdfIn PDF document text
    • http://lach-hotels.com/images/coin-master-hack-app-ios-download_GM406889139.pdfIn PDF document text
    • http://lach-hotels.com/images/oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • http://lach-hotels.com/images/free-robux-website_GM431946152.pdfIn PDF document text
    • http://lach-hotels.com/images/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lach-hotels.com/images/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://lach-hotels.com/images/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://lach-hotels.com/images/hack-coin-master-1_GM406889139.pdfIn PDF document text
    • http://lach-hotels.com/images/free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lach-hotels.com/images/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
    • http://lach-hotels.com/images/coin-master-spin-hack-pc_GM406889139.pdfIn PDF document text
    • http://lach-hotels.com/images/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://lach-hotels.com/images/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdfIn PDF document text
    • http://lach-hotels.com/images/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
    • http://lach-hotels.com/images/coin-master-hacks-for-spins_GM406889139.pdfIn PDF document text
    • http://lach-hotels.com/images/coin-master-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
    • http://lach-hotels.com/images/robux-today_GM431946152.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
font_00_sfnt_off000046a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46A5 24704 bytes
SHA-256: a14ae68dd4cf30f7bac14076671db22913777ad4c5747913c8afbf2c194e6f08
font_01_sfnt_off00007eaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EAA 18376 bytes
SHA-256: 36d8e5c8df31ce5774558eb4dff236d908794f1052653b7bf9d7a2310610d2b4

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