Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d4c6c6fb93ae47e…

MALICIOUS

PDF

40.7 KB Created: 2021-05-11 01:03:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: fc74c40459680a4741dae848f972bfba SHA-1: ab68c73fe031db45782dc99add87c2ef9a11a5c7 SHA-256: 6d4c6c6fb93ae47eeae63527863e24a5e2f14c7eb51ecc6ce64516840e651e77
122 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it's a game hack lure and impersonates brands for credential phishing. The primary URL, https://netcdn.xyz/app/406889139/coin-master-cards-free-cards-game-hack, is directly linked to these lures. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a malicious intent to redirect users to potentially harmful sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/406889139/coin-master-cards-free-cards-game-hack.
  • 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/coin-master-cards-free-cards-game-hack PDF link annotation
    • https://www.audev.com/images/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • https://audev.com/images/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
    • https://audev.com/images/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • https://www.audev.com/images/minecraft-bedrock-free-download-pc_GM479516143.pdfIn PDF document text
    • https://www.audev.com/images/free-coins-for-planet-master-game_GM406889139.pdfIn PDF document text
    • https://audev.com/images/mcpe-download_GM479516143.pdfIn PDF document text
    • https://audev.com/images/coin-master-real-free-spins_GM406889139.pdfIn PDF document text
    • https://www.audev.com/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://audev.com/images/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • https://audev.com/images/coin-master-hack-apk-33-download_GM406889139.pdfIn PDF document text
    • https://audev.com/images/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
    • https://www.audev.com/images/coin-master-free-spins-a2z-help_GM406889139.pdfIn PDF document text
    • https://audev.com/images/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.audev.com/images/haktuts-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://audev.com/images/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://audev.com/images/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.audev.com/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://audev.com/images/minecraft-aimbot_GM479516143.pdfIn PDF document text
    • https://www.audev.com/images/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://audev.com/images/free-links-for-free-coins-and-spins-for-coin-master_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_off000045ba.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x45BA 24972 bytes
SHA-256: a98d961a1cc30a73d160a7b368e58bc8326641245d5e2fb9f7db5dd93cdae0db
font_01_sfnt_off00007dff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DFF 17884 bytes
SHA-256: d54aa51eaaaa3e2864f0114713409e316145a0183ee6aba9be1e443db1dceb19

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