Malicious PDF — malware analysis report

Static analysis result for SHA-256 b65cca0a509fca9f…

MALICIOUS

PDF

41.9 KB Created: 2021-05-15 17:15:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 42ac0b02e191f578cc189f25f90a7308 SHA-1: 4015126f3a54f4ea5dc6a61206ac1cadc6012843 SHA-256: b65cca0a509fca9fe50bd1726ff7f8c1197223a93540eeed97f98ffaa861f571
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded URLs and a link farm, strongly suggesting a phishing or malware distribution attempt. The document body and extracted URLs reference "Coin Master" and "Roblox" hacks, indicating a lure for game-related cheats or exploits. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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-email-rewards-game-hack PDF link annotation
    • http://www.metinadistribuzione.com/images/2021-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/best-free-spins-link-coin-master_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/coin-master-game-hack-app-download_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/coin-master-fan-club_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/how-to-give-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/get-robux-now_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049d4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49D4 24588 bytes
SHA-256: 284de5c8a2025117cff554de76cc282b56a0728bdc104ec528c9780a718b682d
font_01_sfnt_off000081af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81AF 18216 bytes
SHA-256: e61fab9f8d99b46953a38bd9174b367a9798fa55ae4550c291f399d0802cd730

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