Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d42e26021a406fc…

MALICIOUS

PDF

34.5 KB Created: 2021-07-09 12:47:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: ac462235a359bd2e1ce5952a79c2a7e4 SHA-1: e721588bf123f929af7c898570ea6da9cbcb358b SHA-256: 6d42e26021a406fc563a710580987c49f0796997629e096578dc8ea21bf29a51
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' and game hacks, directing users to a suspicious URL. This indicates a social engineering tactic to trick users into visiting potentially malicious sites. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a scam or phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/free-robux-only-1-step-game-hack PDF link annotation
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/free-roblox-account-gettet_GM431946152.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/roblox-rape_GM431946152.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/hack-rpg-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/free-robux-no-downloads-no-surveys_GM431946152.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/free-robux-without-downloading-an-app_GM431946152.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/coin-master-code-for-free-spins_GM406889139.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/coin-master-facebook-page_GM406889139.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/roblox-gang_GM431946152.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/hack-robux-belen_GM431946152.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/hack-coin-master-game-apk_GM406889139.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/free-coin-master-spins-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/how-to-put-shirts-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/survivor-hack-scrip-t-roblox_GM431946152.pdfIn PDF document text
    • https://www.ktcart.co.in/uploaded_files/userfiles/files/roblox-high-school-for-free-to-play_GM431946152.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
font_00_sfnt_off00002ef8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF8 22384 bytes
SHA-256: 69c60c6cdd6f0be829a3162792d2996f7597cf38d4fd2b8b0c9b3df68c8fe15e
font_01_sfnt_off000060c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C7 19356 bytes
SHA-256: 6203e8b6a616a7180bc9441a8d043da3f01388f0f459c4fdfb5ce8965eca2553

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