PDF static analysis report

Static analysis result for SHA-256 79aa71da99530f08…

SUSPICIOUS

PDF

43.3 KB Created: 2021-05-15 00:20:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 9de509458005bdd02be52351113299aa SHA-1: 0b8459bbb6bfdccee9b51704c77dd672092b73de SHA-256: 79aa71da99530f08b50f6acf15bf5d58e0d3dd556db088b4e15ff06bdeab9751
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs and a prominent external URI pointing to sites offering game cheats and hacks, suggesting a lure for users to download potentially malicious content. The ML classifier also flagged this PDF with high confidence. While no scripts were directly extracted, the presence of numerous links and the nature of the lures indicate a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 3

  • 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-free-spins-usa-2021-game-hack PDF link annotation
    • http://htbrasil.net/ckfinder/userfiles/files/chisel-and-bits-mod-pe_GM479516143.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/free-roblox-clothes-boy_GM431946152.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/free-cracked-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/free-roblox-app_GM431946152.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/how-to-get-free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/free-coin-app_GM406889139.pdfIn PDF document text
    • http://htbrasil.net/ckfinder/userfiles/files/free-links-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_off00004983.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4983 28796 bytes
SHA-256: a30e85bea82f143dfdf638b717fc7a08d7b065c8eb1acb798fbbc9c67dd61e41
font_01_sfnt_off0000862b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x862B 18472 bytes
SHA-256: 16bf174bf6dc39212a7e0095f5095cb34a7632b0870544d55dc21d8537d09f5f

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