Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d1822a4a593a92e…

MALICIOUS

PDF

31.2 KB Created: 2021-04-23 21:14:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: cd03af1fd7d8fd549a13b551f204decd SHA-1: 9e50217c9270ee94e73b86f6602312f2ad496a9f SHA-256: 2d1822a4a593a92e466e0677e1e6d841fe6c340d39625eed01c9bf8401233460
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 3

  • 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.
  • 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/hack-robux-with-no-gift-card-game-hack PDF link annotation
    • https://sitecontabil.com.br/ckfinder/userfiles/files/claim-free-robux-2021.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/hack-site-robloxcom-robuzx.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/how-to-get-free-robux-no-human-verification-2021.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/horizon-in-roblox-money-hack.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/how-to-hack-granny-roblox.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/roblox-galaxy-arcade-resourcen-cheats.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/how-to-do-a-roblox-hack.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/hacker-names-roblox.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/top-10-free-items-in-roblox.pdfIn PDF document text
    • https://sitecontabil.com.br/ckfinder/userfiles/files/how-do-you-hack-a-roblox-server.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000412b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x412B 25012 bytes
SHA-256: 781419c9585d4d6402ff8ee4598938c70c6821064cb025207b8c817833108747

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