Malicious PDF — malware analysis report

Static analysis result for SHA-256 b50f0b8ee43bf1f8…

MALICIOUS

PDF

64.6 KB Created: 2020-08-20 08:23:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aba569206c5c3a643c588a56f8cfb4c3 SHA-1: 162c5d0625ca2c5ec90eb03df5f5b451708eb862 SHA-256: b50f0b8ee43bf1f87b30223017796b9a890593d8bbe656114ab1d0f4960097de
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a malicious redirector link disguised as a download button, aiming to lure users to a malicious site. The document body, though heavily obfuscated, contains the URL that is also flagged by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, likely for SEO manipulation or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.cc/pify?keyword=telugu+bluray+video+songs+free++websites In PDF document text
    • http://desif.lethbridgeelectrical.com/uploads/1/3/0/7/130776603/vejawaxisatuw_toxezeworisam_tupurolow.pdfIn PDF document text
    • http://files.pg862.com/uploads/1/3/0/7/130739155/4830957.pdfIn PDF document text
    • http://files.charitysharonwhite.com/uploads/1/3/0/9/130969211/5760251.pdfIn PDF document text
    • http://files.doodledesignsandrhymes.com/uploads/1/3/0/8/130874612/kofutuguregoxad.pdfIn PDF document text
    • http://bltlly.com/122sbtsongsIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/materi_akuntansi_sebagai_sistem_informasi_kelas_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1403/7409/files/equation_of_a_line_two_points_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7417/5644/files/cutting_board_designs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3278/6597/files/tixagujivugobafuriwelat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0777/8711/files/witujevudipaguwer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6635/8934/files/96340549711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9202/6271/files/42873473450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2524/4053/files/sawogulewevu.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 4

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_off0000becc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBECC 5416 bytes
SHA-256: 06e58cfb14cb061fbff95274a5c97c4b36131f795add5260e82376f34163985a
font_01_sfnt_off0000d160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD160 10588 bytes
SHA-256: 014edb621b3e6fd5c2a1d81ce7accd8c34d21e51b9dea0ea2c3926f9789b8355

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