Malicious PDF — malware analysis report

Static analysis result for SHA-256 80093922370d51bc…

MALICIOUS

PDF

43.7 KB Created: 2020-08-03 06:12:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed522dbf5f7fba368fa139421c335fe6 SHA-1: bda4527804af7878e4f7a1e8a4f88f61b037a56d SHA-256: 80093922370d51bc33263b3e8fdb22a5fec6bab9df9105f38987c69b095c184b
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains text related to 'tubing bender harbor freight' and a URL that appears to be part of an SEO link farm designed to lure users. The ML classifier strongly indicates maliciousness, and the presence of redirector links suggests a phishing or malware distribution 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=tubing+bender+harbor+freight In PDF document text
    • http://files.mattiacupelli.com/uploads/1/3/2/6/132682802/dokubukenud-wunoxolurujo-tazatomozakum.pdfIn PDF document text
    • http://files.kendrakoivu.com/uploads/1/3/0/8/130874113/jejup_vumido_bajigerabijuro_fopajuvixugali.pdfIn PDF document text
    • http://files.myfureverfrenchie.com/uploads/1/3/1/1/131164063/a0b19a8531e5.pdfIn PDF document text
    • http://files.danaechohawk.com/uploads/1/3/1/0/131070827/b565e4438b90.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/1/0430/7720/6178/files/63542711030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3896/4903/files/13726633610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6725/1617/files/vajekemugadugepirira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3876/1379/files/rawaxomipirabunobezawiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9375/2997/files/51084286720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9166/5830/files/60343440238.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7414/1864/files/dmv_ca_written_test_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2040/3356/files/49841107445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4156/1503/files/45580591089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23158701460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4752/6293/files/chrome_extension_storage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6246/0577/files/saxugubajigerefuwojolewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9915/1768/files/12594671762.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_off00006c58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C58 5048 bytes
SHA-256: 4045106c12049c6098ef7424b393dc68bebed630a4f4967adc25b9f7ef548e07
font_01_sfnt_off00007d82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D82 10676 bytes
SHA-256: 48bb35c3398e76534ec0e419e04123317c6cf6bede62c418ff9396a8f655af78

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