Malicious PDF — malware analysis report

Static analysis result for SHA-256 a010ad089cdaece6…

MALICIOUS

PDF

41.7 KB Created: 2021-04-23 21:55:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 167537e94c5f5e68c1c5920f8edd594a SHA-1: ac396d28b2c89803aa15ce19301950886f8b7abb SHA-256: a010ad089cdaece69b05bbffeeb28e4500843a6ec0e5f5f2e6ad663f09516856
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 0.9941

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://netsecure.top/app/431946152/dragon-ball-z-final-stand-hack-scripts-roblox-game-hack PDF link annotation
    • http://stomatoloska-ordinacija-rijeka.com/files/roblox-hack-trackid-sp006.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/www-pastebin-com-free-robux.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/apk-roblox-hack-pc.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/free-star-codes-for-roblox.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/robux-gainer-free.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/free-captain-america-costumes-roblox.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/get-free-robux-easiest-way.pdfIn PDF document text
    • http://stomatoloska-ordinacija-rijeka.com/files/how-to-get-free-passes-on-roblox.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/roblox-free-builders-club-pastebin.pdfIn PDF document text
    • https://www.stomatoloska-ordinacija-rijeka.com/files/boku-no-roblox-remastered-cheat-codes.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_off000043d3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x43D3 25528 bytes
SHA-256: 4772f9f5eb863be28d82f0d6c7ec0d4401c6764a866142caed3691a578fa7906
font_01_sfnt_off00007dad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DAD 19472 bytes
SHA-256: a092a8202c6536963cc85be669603b6911428355f4b419853938278758d6ed75

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