Malicious PDF — malware analysis report

Static analysis result for SHA-256 267c6f2004be4248…

MALICIOUS

PDF

45.4 KB Created: 2020-07-31 08:12:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 955474d1b4f994476bff494e13ea71d8 SHA-1: 3242de8a4f96b32556876d0b6579781cde18bf86 SHA-256: 267c6f2004be424879cbe50a8ef36bb812f717028663e8ff74e702e467ecc560
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a link farm, designed to redirect users to external websites. One of these links points to a known malicious redirector. The document body is heavily obfuscated and does not provide clear textual lures, but the presence of the link farm and the malicious redirector strongly suggests a phishing or malicious content delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.ru/pify?keyword=smoothed+particle+hydrodynamics+pdf In PDF document text
    • http://files.halfasshomemaker.com/uploads/1/3/1/4/131453022/ganavop.pdfIn PDF document text
    • http://files.sailingforhome.com/uploads/1/3/1/3/131379719/kegume-debarupuw.pdfIn PDF document text
    • http://files.treeoflifetroupe.org/uploads/1/3/2/8/132815359/3196c889ba.pdfIn PDF document text
    • http://files.fouledbore.com/uploads/1/3/0/8/130814623/joxazobuzavaxiv.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/1/0435/3415/5928/files/junuwidikuxofitela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1126/0062/files/morepidewazirore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2683/1784/files/55889958755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8897/7815/files/6960781516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3968/5799/files/77023632562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8022/9791/files/lakefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1465/1038/files/zarizapizazozivurub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4042/3587/files/mabisumuxarofefakovabora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/93997307492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8179/3698/files/33798377184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1828/7266/files/70727230423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0131/4456/files/81888392617.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_off00007186.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7186 5388 bytes
SHA-256: 75719ebdf3879503f350368f4b11cd2d3e4c51a21f5f2c11d294f4d9c1112d23
font_01_sfnt_off000083aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83AA 10804 bytes
SHA-256: 320ec5b3696e314fe6e7868aa56967e0746bd7ae3ee27bc23690d88868c3f2e3

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