Malicious PDF — malware analysis report

Static analysis result for SHA-256 68ba4b103bcae7f2…

MALICIOUS

PDF

53.2 KB Created: 2020-08-07 06:59:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dc014b11c535f30823a3312d9d0a8171 SHA-1: 2f1bc456448cff63eea4bbebc6771c25d097671f SHA-256: 68ba4b103bcae7f26cc46ca5a54b73a382d7d0a010c0a4175d8b9d0a26f8652d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to a malicious URL, identified as a redirector for SEO spam. The document body, though heavily obfuscated, contains a URL that appears to be part of this link farm. The ML classifier strongly indicates maliciousness, and the heuristics point to a malicious redirector and a link farm strategy.

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.cc/wb?keyword=cervicalgia%20tratamento%20pdf In PDF document text
    • http://files.nottinghammassage.com/uploads/1/3/2/6/132681885/3948861.pdfIn PDF document text
    • http://files.getelevatedny.com/uploads/1/3/1/8/131856041/mimofefijoni.pdfIn PDF document text
    • http://files.sissynscooter.com/uploads/1/3/1/4/131455247/wenito_sixezukede_fixuxuxig.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/guxibekutelaranojupajew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fejekav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4742/9031/files/puniwino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2299/1007/files/nigudibuxatesuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1818/1016/files/rawigumobitazidazod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/7302/4679/files/hygromanteia_portugues.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4997/5959/files/fesibotoso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9059/8305/files/guxezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/sketch_serial_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/3633/1419/files/medical_terminology_dictionary_prefixes_and_suffixes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9028/8535/files/jetirifikogekasogosot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7418/1537/files/buronuredokoweg.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000080bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80BB 5168 bytes
SHA-256: 0b3ccaf68d78b9f24653626ab752788abc4b1cbc8b89893c15242534ed405b66
font_01_sfnt_off00009237.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9237 12500 bytes
SHA-256: 3fa62c12b0c99168a05a604246354c0d312e092844297d332cddad2a698bfed7
font_02_sfnt_off0000b80a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB80A 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

Open this report in the interactive analyzer, or submit your own file for analysis.