Malicious PDF — malware analysis report

Static analysis result for SHA-256 1df8c9be683d48a3…

MALICIOUS

PDF

58.8 KB Created: 2020-08-21 16:20:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da1563f1b9f7a4b0454c405d36e03670 SHA-1: 18e28852876a7db221589ca97a1826a6f68861ee SHA-256: 1df8c9be683d48a39ef893067ebc408112c41338779a2d9c5a73299773c9a8c3
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that is disguised as a download button. The link leads to a URL that is part of a link farm, ultimately serving a PDF file. The presence of a malicious redirector and a link farm indicates a phishing or social engineering attempt to trick the user into downloading potentially 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=print+at+home+business+card+template+free In PDF document text
    • http://files.blossmmms.com/uploads/1/3/0/9/130969699/xegotesajasiged-tibavipifet-dumafopi.pdfIn PDF document text
    • http://bemajirod.belizesportsoutreach.com/uploads/1/3/0/7/130775166/fapomi.pdfIn PDF document text
    • http://files.harpshouse.com/uploads/1/3/1/0/131069978/dapedasojemofegalitu.pdfIn PDF document text
    • http://files.daventrydogtrainingclub.com/uploads/1/3/0/8/130873973/6745225.pdfIn 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/1/0432/0762/2824/files/xakixelunafuron.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0653/3525/files/45033440714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/13794551908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0059/3557/files/construction_scope_of_work_template_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8612/4958/files/avestan_language.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1121/1417/files/ceqa_guidelines_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1946/7927/files/83180685207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7732/8278/files/stacked_bar_chart_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0118/3384/files/sutenomixegudalaxen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32177526878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8312/8214/files/94936359129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4809/2323/files/rupelonibadukig.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 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
font_00_sfnt_off0000a7d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7D2 5536 bytes
SHA-256: 79b3226505a30c75eba1e3ab794c019988dfe3862c78183e497a4556d9c67267
font_01_sfnt_off0000ba66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA66 10296 bytes
SHA-256: 748bd48b14b0cdd29834510c8f9181469e848a9a891d2b923087a86994dcddec

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