Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d458adea97f45ca…

MALICIOUS

PDF

46.5 KB Created: 2021-06-03 06:44:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: e151e181b4891cea67b2751fdd5c0816 SHA-1: 2a5eba3eefb1146b87edebff84216ae6be33fed9 SHA-256: 4d458adea97f45ca44d36b90039309e5455814cd9e3907396a7f85d0655f2c45
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a known malicious infrastructure, specifically promoting game hacks and generators. The document body and extracted URLs strongly suggest a lure designed to entice users to click through to potentially malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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 https://netcdn.online/app/479516143/minecraft-pvp-hacks-game-hack In PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/how-to-hack-coin-master-game_GM406889139.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/free-downloads-for-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/hack-coin-pro-coin-master_GM406889139.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/coin-master-app-for-free-spins_GM406889139.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/tiktok-free-package_GM835599320.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/game-hunters-coin-master_GM406889139.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/coin-master-latest-version-hack_GM406889139.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/my-minecraft-account-was-hacked_GM479516143.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://www.carpetbcfyarn.com/uploaded_files/userfiles/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://carpetbcfyarn.com/uploaded_files/userfiles/files/tiktok-free-fans_GM835599320.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_004_off00005313.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5313 28928 bytes
SHA-256: b348113b4d66b99ac9bd351de316b924d7c1dff29c24af835c303b77e7a01b7f
font_01_sfnt_off000093ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93EA 18180 bytes
SHA-256: 0e2f0ac061c68c7eb9671630210144f167660a9976ef74b494f6c2985e791cfa

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