Malicious PDF — malware analysis report

Static analysis result for SHA-256 d567a4495e552e31…

MALICIOUS

PDF

36.5 KB Created: 2020-08-07 02:58:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 443559d4e46e9bb9eace2cd87471f2bf SHA-1: d74378e96dc12658d827ade01cbcc40441a65b25 SHA-256: d567a4495e552e311d0fdf8439eef7984f6c647191d36bb475abf05f43dcbaf1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same URL, suggesting the primary intent is to redirect the user to malicious infrastructure. The presence of a link farm further supports a malicious redirection scheme.

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=exploring+public+relations+4th+edition+pdf In PDF document text
    • http://files.parislaserandskin.com/uploads/1/3/0/7/130739529/8228801.pdfIn PDF document text
    • http://files.animalhealthcentre.ca/uploads/1/3/0/7/130776647/fadoxebezesekixob.pdfIn PDF document text
    • http://vipuxefe.clooneyns.com/uploads/1/3/2/6/132696323/636747d2851225.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/1/0430/6727/7469/files/72206702196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7740/2778/files/xavalalawemenolesowiremi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/31475761224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2149/1621/files/camera_angles_and_shots.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8897/7813/files/58170831274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6784/2459/files/borilowekupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2278/6466/files/34945325383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7805/6091/files/musupuzunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2831/5288/files/how_to_play_mp4_on_windows.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 7

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_off00004316.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4316 5552 bytes
SHA-256: 2819699f0f9f9bf2ab21d27541fbe8b2122e527c6ca0a58bf2a0e03d1448f083
font_01_sfnt_off000055ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55ED 9720 bytes
SHA-256: 3827ad83b9e743ca914c9a1d51e596eaabc6c533971b22824390b2ba3c274cbf
font_02_sfnt_off0000771d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x771D 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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