Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c54388777ab6014…

MALICIOUS

PDF

35.0 KB Created: 2021-06-21 06:26:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: dfbb117b5f80966721e34dea32d55a2b SHA-1: a9e4edaeff1d0f2f4c54e884f4c34e0c1e4f7db1 SHA-256: 3c54388777ab60148bcc84c973689fd286cd49056081df90388310101866b5c6
160 Risk Score

Malware Insights

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

The PDF file contains multiple heuristics indicating it links to malicious redirectors and lures users with promises of game hacks. The document body and embedded URLs reinforce this, pointing to a phishing or scam attempt. While no scripts were extracted, the PDF structure itself facilitates the redirection, likely leading to a second-stage exploit or further phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/free-roblox-coding-guide-game-hack In PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/free-robux-generator_GM431946152.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/daily-coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/robux-adder-hack_GM431946152.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/free-gift-card-codes-roblox-2021_GM431946152.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/roblox-red-shirt-free_GM431946152.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/tiktok-free-100-likes_GM835599320.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/coin-master-mod_GM406889139.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-mobile-easy_GM431946152.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/free-headset-in-roblox_GM431946152.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/mistplay-robux_GM431946152.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/coinmaster-links_GM406889139.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://luckydealuae.com/uploaded_files/userfiles/files/how-to-play-minecraft-for-free-on-pc_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000328c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x328C 22140 bytes
SHA-256: 295efd90ca49d023ef36ae07db70bd4dc274a802790044de8a5373deba384f31
font_01_sfnt_off000063e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E7 19084 bytes
SHA-256: 611e499a88c2f9aa07609be7632a66be2bf6aaad2513ea5b354512851304fa77

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