Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1276f6cb9103b92…

MALICIOUS

PDF

41.5 KB Created: 2021-04-24 01:18:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 497c1e098e5613a41a3068ada981d712 SHA-1: c2ee5202b2bc75518731185dfe98df56309a91a9 SHA-256: c1276f6cb9103b92d5cb5e80645dd0ac38a2f5c62c846909572be8bf451bad57
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/roblox-jailbreak-money-hack-script-2021-game-hack PDF link annotation
    • http://blueduna.com/images/how-to-use-the-sex-hack-on-roblox.pdfIn PDF document text
    • http://blueduna.com/images/free-robux-games-not-scams.pdfIn PDF document text
    • http://blueduna.com/images/free-roblox-catolog.pdfIn PDF document text
    • http://blueduna.com/images/hack-de-roblox-counter-blox.pdfIn PDF document text
    • http://blueduna.com/images/create-free-group-roblox.pdfIn PDF document text
    • http://blueduna.com/images/roblox-robux-hack-cheat-engine.pdfIn PDF document text
    • http://blueduna.com/images/games-in-roblox-to-get-free-robux.pdfIn PDF document text
    • http://blueduna.com/images/obby-gives-you-free-robux-no-password-required-2021-roblox.pdfIn PDF document text
    • http://blueduna.com/images/hackaron-roblox-robux-hack.pdfIn PDF document text
    • http://blueduna.com/images/roblox-free-robux-generator-exe.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000040b7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x40B7 27268 bytes
SHA-256: 3fb15e5bb887c614307ffce4d159361926ac47ec252073be187847147fae0a50
font_01_sfnt_off00007cb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CB7 19524 bytes
SHA-256: f312aad24668240d8877d49fd35f192804d749b49496cc717a6298c4acde14cc

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