Malicious PDF — malware analysis report

Static analysis result for SHA-256 93f61a5015f30247…

MALICIOUS

PDF

45.6 KB Created: 2021-05-16 00:01:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c0272468279e76656230b4cabaacc645 SHA-1: d6ce02b38b3d8f196fb7f483b74dbf1a90c6ed5f SHA-256: 93f61a5015f302470ba4ac7e76d43df5ce3e21189abbe63626803aa2acaffb0a
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 0.9980

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/406889139/50-free-spins-coin-master-links-game-hack PDF link annotation
    • http://behsanroshd.com/images/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/do-coin-master-hacks-work_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-free-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/do-you-get-windows-10-minecraft-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/hack-card-collection-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/collect-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-free-coins-today_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-online-games-like-minecraft_GM479516143.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_off000049cb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49CB 32040 bytes
SHA-256: 006c8cb7690fb892a93c326f6b4580f76fd067bf287e11b04b799c14e3548e7b
font_01_sfnt_off00008ffd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FFD 18364 bytes
SHA-256: 5f18526dee368ac18b20cf023ba1ff49340788242d54a3837ea53eed50d07245

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