Malicious PDF — malware analysis report

Static analysis result for SHA-256 b18e7f64756c1a69…

MALICIOUS

PDF

42.3 KB Created: 2021-05-14 17:03:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: fe953c5d1ee4af39b4342ef45ebd8f3c SHA-1: 66209f041ab136b28209bbc1193ad1168b9b8e02 SHA-256: b18e7f64756c1a6948697c175bfd9cb188895a6d76a1a9b22148b8ca3392d440
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 0.9971

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://netcdn.xyz/app/406889139/free-spins-coin-master-hack-game-hack PDF link annotation
    • http://olesya-chagovets.com/images/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://olesya-chagovets.com/images/rare-free-links-to-coin-master_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • http://olesya-chagovets.com/images/coin-master-free-spins-link-ios_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://olesya-chagovets.com/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://olesya-chagovets.com/images/coin-master-pc-hack_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/monttechscom-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/coin-master-hack-online-android_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://olesya-chagovets.com/images/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://olesya-chagovets.com/images/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://olesya-chagovets.com/images/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
    • http://olesya-chagovets.com/images/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/earn-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
    • http://olesya-chagovets.com/images/hack-coin-master-using-pc_GM406889139.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_off00004a0b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A0B 26364 bytes
SHA-256: 0916ed9b9e672cc1c3d0c62e2fe153504ad23924aee09eeb672dbd082e1670f5
font_01_sfnt_off000083ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83AE 18056 bytes
SHA-256: 80aa601e39d75fb74aea55068656967f8eb3655b97589a2d3c4253cef7ecc220

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