Malicious PDF — malware analysis report

Static analysis result for SHA-256 01f2b383b51d9ad7…

MALICIOUS

PDF

45.5 KB Created: 2021-06-14 00:38:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 537671d5a5c50d2f78cf3fa06a20a00c SHA-1: 918787d3dd0d5aaadc70b665e872bea6245c6944 SHA-256: 01f2b383b51d9ad7a9a5976b65d5167cf00f1c1ed4f898f6c173497cc4cd6d53
122 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, designed to trick users into clicking a link that redirects to a "game hack" generator. This redirection likely leads to the download and execution of a malicious payload. The document's structure and embedded URLs suggest a phishing or social engineering attempt to compromise the user's system.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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 http://netcdn.co/app/431946152/comment-crer-son-propre-hack-roblox-game-hack PDF link annotation
    • http://ansacare.com/images/cheats-coin-master-free_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/how-to-get-free-robux-on-roblox-without-verification_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/roblox-virus-free_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/how-to-get-the-kitsune-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://ansacare.com/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/wurst-minecraft_GM479516143.pdfIn PDF document text
    • http://ansacare.com/images/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/hacks-to-get-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/tiktok-free-nose-job_GM835599320.pdfIn PDF document text
    • http://ansacare.com/images/link-coin-master_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/free-minecraft-server-hosting-with-plugins_GM479516143.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_off000048a7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48A7 25612 bytes
SHA-256: 283db8b7c16e0a76eccde58f64de4859bc5739eb90525d335cc2a47b9da36a6c
font_01_sfnt_off0000834f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x834F 2984 bytes
SHA-256: 2df87bbe4e27b27e34c872c092d0522acd977d05f5cbde7ed5e1fdfeb59cb318
font_02_sfnt_off00008d9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D9D 18876 bytes
SHA-256: ae04430ca4889ae6e1976c7c6aba22f5c0523bce029989c44e94dd8506bb8e34

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