Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d2693ea5fc7daa4…

MALICIOUS

PDF

33.6 KB Created: 2021-06-18 23:31:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: fa0e443fcca021be763ceb7285ee4e1d SHA-1: 6f77c5ff1bd5f69ee8a2b959c6e5228761992c71 SHA-256: 4d2693ea5fc7daa449b7121e88ba16a1176bb5c2a9e5ce995634841f816c477f
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.co/app/431946152/how-to-hack-roblox-model-not-for-sell-game-hack PDF link annotation
    • http://vagency.us/images/hack-prison-life-roblox-2021-pc_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://vagency.us/images/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • http://vagency.us/images/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://vagency.us/images/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://vagency.us/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/coin-master-free-spins-today-new_GM406889139.pdfIn PDF document text
    • http://vagency.us/images/coin-master-free-spins-link-cheat_GM406889139.pdfIn PDF document text
    • http://vagency.us/images/free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://vagency.us/images/free-robux-hack-net_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/robux-claimer_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/roblox-the-quarry-hack_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/get-free-robux_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/free-robux-apk-october-2021_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://vagency.us/images/how-to-get-free-robux-codes_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_off00002c1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C1B 22216 bytes
SHA-256: 617a3acafe6cf0d14531acae73342d0410b3c694a0802a4252ae092ec6b8c4cd
font_01_sfnt_off00005d5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D5D 19272 bytes
SHA-256: 8e17f9558d75c4d215a3baf856964e11141e2006020141dd21068b7fa1a9787f

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