Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc96964e872a3de7…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 12:25:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e9468566d914d85ea21b2c4046e58556 SHA-1: ab89526bd2317e668b13d735887f8193cadefd32 SHA-256: fc96964e872a3de7390a8a29c8add06688741baa06e5957ae8455bbb3e4e7eb7
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 http://netcdn.tw/app/431946152/free-robux-by-watching-ads-game-hack PDF link annotation
    • http://apotema.com.co/ufiles/files/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/www-free-robux_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/tuto-free-animation-2021-roblox_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/animation-editor-free-roblox_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/hack-roblox-bee-swarm-simulator-2021_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/pubg-uc-usa_GM1330123889.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/roblox-jailbreak-noclip-hack-download_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/toolbox-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/roblox-cheats-blog_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/coin-master-free-spin-link-twitter_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/coin-master-daily-free-spins-blog_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/online-hacking-tricks-coin-master_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://apotema.com.co/ufiles/files/free-roblox-passwords_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_off00002ddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DDB 22640 bytes
SHA-256: 63008cc4ae3a972e9562369fdc86c29714c1324249adda65e8e520a23ee6d6b6
font_01_sfnt_off000060aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60AA 19660 bytes
SHA-256: f0cdf6166c464805662a9cde01402bcc449eb6222422d9d5af766ad530424c87

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