Malicious PDF — malware analysis report

Static analysis result for SHA-256 8361d437c1ad0d05…

MALICIOUS

PDF

41.4 KB Created: 2020-08-20 07:09:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f637ce6ddc14b2c56f8cb8a6b3188985 SHA-1: a4ad5231afd58cd97c28701bff93c6335ff6f3e6 SHA-256: 8361d437c1ad0d05216c21c488ce985c7944bf70bfbed24109c7b812be3845d4
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic identifying it as a malicious redirector. The document body and heuristics indicate a lure related to 'Consumer reports reliable cars', suggesting a phishing or scam attempt. The primary redirector URL is 'https://ttraff.com/pify?keyword=consumer+reports+reliable+cars', which is flagged 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.com/pify?keyword=consumer+reports+reliable+cars In PDF document text
    • http://vemesidev.chrisbrooksarchitecture.com/uploads/1/3/0/8/130874482/nowaw-jimeniz-dofonul.pdfIn PDF document text
    • http://files.montaukbeachbungalow.com/uploads/1/3/1/1/131163833/wejubokefujameg_joteneziz_nusoguk_tegajukejatafer.pdfIn PDF document text
    • http://files.gcs-fsaa.com/uploads/1/3/0/9/130969352/kofukidudor_sukozujodojo_kosazisuz.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/1/0430/7006/2754/files/gadibedipafusep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0042/2819/files/64053899687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3439/4276/files/dofibogoditunasarar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2613/6731/files/lozifopazokob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0333/0209/files/62742364544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4958/2743/files/97864326107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3689/2584/files/viva_video_apkmos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4985/6669/files/boost_converter_project_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lapifobojupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3186/3202/files/lujumif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8063/6821/files/rsync_without_encryption.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5601/9109/files/35136182589.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_off00006536.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6536 5124 bytes
SHA-256: 298b4c1db2da1f66a481c9de91d3ac4e7e4ff859809db84c697c6b1d484ec47f
font_01_sfnt_off0000767a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x767A 10116 bytes
SHA-256: 4944753f7752ae01917b50fe16a975b619a0cb1aea13c6ff0efe02ce643ef74b

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