Malicious PDF — malware analysis report

Static analysis result for SHA-256 1344ffc55f0a275a…

MALICIOUS

PDF

49.9 KB Created: 2020-07-14 05:34:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d0e7f5e51f0ccbcb9a417c092935c47 SHA-1: 5c25eb07476043ce48e54ff9fd76fd30dfe18170 SHA-256: 1344ffc55f0a275a5d781155658f7c8156e42e25a17a83d9c49de8fa1623d0ba
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links pointing to redirector infrastructure, specifically identified as a malicious redirector and an SEO link farm. The heuristic firings indicate the document is designed to lead users to malicious sites, likely for phishing or to download further malware. The ML classifier strongly supports the malicious nature of this PDF.

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.com/pify?keyword=tashas+drinks+menu+pdf In PDF document text
    • http://files.ccioh.com/uploads/1/3/2/7/132740552/5420886.pdfIn PDF document text
    • http://files.fiveminutechurch.net/uploads/1/3/1/3/131383325/61364b3.pdfIn PDF document text
    • http://files.studioplumpiano.com/uploads/1/3/1/3/131383497/70178f76b.pdfIn PDF document text
    • http://files.framemysore.org/uploads/1/3/1/3/131384789/7349004.pdfIn PDF document text
    • http://files.morjimcocopalms.com/uploads/1/3/1/3/131384789/2a0aea98a146c0c.pdfIn PDF document text
    • http://files.dragonflyhempworx.com/uploads/1/3/2/6/132696117/5086331.pdfIn PDF document text
    • http://files.annabellehughes.com/uploads/1/3/1/3/131379904/dofen.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://tusivedugex.files.wordpress.com/2020/06/33553122899.pdfIn PDF document text
    • https://fumepuwabipa.files.wordpress.com/2020/06/31650242197.pdfIn PDF document text
    • https://kadejisomaf.files.wordpress.com/2020/07/waneragibunetagefun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3342/0195/files/72048517963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/68905528383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2270/4030/files/tifemuvedawup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nenixuraxolitater.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8239/1451/files/nukujawafef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1865/7697/files/6236245492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5359/6310/files/12264825549.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_off00007e08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E08 4956 bytes
SHA-256: 3a58472b99e51034fb7467095b3b5a589f93644ad203918af8af5fb2800149df
font_01_sfnt_off00008e9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E9E 14096 bytes
SHA-256: 579db257d9655e3464fd5da2cca3cfd1077ffd303f433d716ac7636ce1fa37f8

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