Malicious PDF — malware analysis report

Static analysis result for SHA-256 10d291a3377e012a…

MALICIOUS

PDF

49.2 KB Created: 2021-04-29 04:25:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 82b01b4e72fc68c9068abbd6767369b0 SHA-1: 30842811dec61d59cd90b241cea4f59cd6615d5f SHA-256: 10d291a3377e012a316d1347192e88b638a7b4a2b6eca9c18675c6d351c93226
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple links to known malicious redirectors and game hack lures, specifically targeting Roblox users. The document body includes a prominent "CLICK HERE TO ACCESS ROBLOX GENERATOR" call to action, reinforcing the phishing attempt. The heuristics indicate a critical risk due to the malicious redirector infrastructure and the nature of the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9764

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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
  • 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/431946152/roblox-superhero-city-hack-game-hack In PDF document text
    • http://evro-okna.net/images/crate-new-accownt-for-free-robux-code.pdfIn PDF document text
    • http://evro-okna.net/images/download-synapse-roblox-free.pdfIn PDF document text
    • http://evro-okna.net/images/como-hackear-comandos-de-roblox.pdfIn PDF document text
    • http://evro-okna.net/images/cheat-names-for-roblox.pdfIn PDF document text
    • http://evro-okna.net/images/unjailbreak-hack-roblox-2021.pdfIn PDF document text
    • http://evro-okna.net/images/free-robux-no-sign-up-no-survey.pdfIn PDF document text
    • http://evro-okna.net/images/comment-avoir-des-robux-gratuit-sans-hack.pdfIn PDF document text
    • http://evro-okna.net/images/roblox-cheat-2021-fr.pdfIn PDF document text
    • http://evro-okna.net/images/free-robux-generator-no-download-no-human-verification.pdfIn PDF document text
    • http://evro-okna.net/images/how-to-hack-free-robux-2021.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004169.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4169 28520 bytes
SHA-256: ad59f1723298220472b33e91df6a052cc33ba47d8ea9fdc76c502ed148f11a65
font_01_sfnt_off00008187.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8187 11440 bytes
SHA-256: 154d59d1680f2d1e38ccb783d6997f344290d121007e51df331726de4128c12e
font_02_sfnt_off00009ca8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CA8 19068 bytes
SHA-256: 39b2426e6b16fc41c5e41eb970be988c0254e2ae3010a162f72208ecd5f05279

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