Malicious PDF — malware analysis report

Static analysis result for SHA-256 91ee90ee265e7b97…

MALICIOUS

PDF

51.7 KB Created: 2020-08-12 15:18:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a0edb306725b7bb58545dd29912df3f3 SHA-1: ff62787ce2e2328c69ca5bdffaf8269612d37626 SHA-256: 91ee90ee265e7b97a68358dbdbfd278fee90145ad1dd1f5d85b7144929a4a86c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic firing indicates a direct link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=what+is+break+even+point+in+business+pdf'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution. The ML classifier also strongly flagged this PDF as malicious.

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/pify?keyword=what+is+break+even+point+in+business+pdf In PDF document text
    • http://files.heathercorballybryant.com/uploads/1/3/2/6/132696351/f95247acd734c.pdfIn PDF document text
    • http://files.bbartbyangelica.com/uploads/1/3/0/7/130775634/kewixufokok-leziroxinafi.pdfIn PDF document text
    • http://files.iranianmusings.com/uploads/1/3/1/4/131438155/ruduxux.pdfIn PDF document text
    • http://fodilura.rosewriting.com/uploads/1/3/0/8/130874588/sovedipuvilad.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/1/0433/7614/8638/files/kanujife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1423/2996/files/call_center_agent_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6734/1974/files/voxutujimubulabeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4509/3533/files/lujozed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7333/1609/files/chrisfix_used_car_checklist.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/zikuwupajogitoforibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5371/1513/files/convertir_archivo_de_a_word_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9168/8610/files/jodatuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8299/8170/files/zolukapugojusageretawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7176/5664/files/bangladesh_river_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1715/0357/files/mamibamotijonozenuvogijug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8588/4581/files/telemetry_system_in_power_engineering.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 5

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_off000081b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81B9 5376 bytes
SHA-256: dfd34e2544fac2f256a0b19a58dcbf654a7aae6efd6be4f3dcd4f3c417abe6a9
font_01_sfnt_off000093fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93FE 14660 bytes
SHA-256: 1ac6dfc65a89c44616f656ead046a4d05e8505c9259882cd76d8c7a0cb99f1b0

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