Malicious PDF — malware analysis report

Static analysis result for SHA-256 80750f045817af10…

MALICIOUS

PDF

32.5 KB Created: 2021-07-07 11:31:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b114f54efeb7fda9db254dae8cbf2eca SHA-1: 7c7add0c7f25c8a9a1abc978fc8c27e4a4ab8d63 SHA-256: 80750f045817af107cd4f982b97ed40dbc83e4f8cc230774ca9b8988c7623e21
102 Risk Score

Malware Insights

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

The PDF document contains numerous links to external websites, many of which are hosted on vierabyragazze.com and appear to offer game hacks and cheats. The presence of a 'Click here to download' call-to-action, combined with the ML classifier flagging the PDF as malicious, strongly suggests a phishing or malware distribution attempt. The document's content and structure indicate it's designed to trick users into visiting these links, likely leading to malware downloads or further phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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 http://netcdn.tw/app/1094591345/pokemon-go-free-and-nintendo-switch-game-hack PDF link annotation
    • https://vierabyragazze.com/upload/files/do-coin-master-hacks-work_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/roblox-rap-hack_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/public-enemy-sun-prairie-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-free-shield-link_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-games-coin-master_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/robux-hack-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/auto-kill-hack-roblox-assassin_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/hack-client_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/roblox-cheat-moves_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-free-spins-link-download-ios_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-pet-food-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_001_off00002951.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2951 22280 bytes
SHA-256: 912f79e5b8ec0c4838665d25d853253ef687f6f3930eabc93c8bd4385c0e17a2
font_01_sfnt_off00005a5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A5B 19084 bytes
SHA-256: a5d1c1268d7fd71d3e1446ac35e13af8a99a3122a390149a9dc5de7501682525

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