Malicious PDF — malware analysis report

Static analysis result for SHA-256 6590943b215e7aee…

MALICIOUS

PDF

41.7 KB Created: 2020-07-26 11:44:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff37fe3cbb3fa91c169d8bce223303ad SHA-1: 5f8f478cfb55b632df23ef951e86e6222cf07795 SHA-256: 6590943b215e7aeedd1ff9640b52ec3d4fd61314e21a2a28b4b317f7ac362001
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file is identified as malicious due to its use of redirector links pointing to known malicious infrastructure, specifically 'ttraff.ru'. The document body, though heavily obfuscated, suggests a lure related to a 'Manual do proprietario citroen c3 2011 pdf'. The presence of a large number of external PDF links, many leading to Shopify domains, indicates a link farm designed to distribute further malicious content.

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=manual+do+proprietario+citroen+c3+2011+pdf In PDF document text
    • http://files.ontheroadtomarmomac.com/uploads/1/3/1/4/131454165/vikiwaj-duxozolo-rajolajufivuva.pdfIn PDF document text
    • http://files.easthamptonartscouncil.org/uploads/1/3/2/7/132740462/6491757.pdfIn PDF document text
    • http://files.sustainablewaresonline.com/uploads/1/3/0/7/130775992/golud_nazegugowanawe_zenino.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/1/0439/5309/4811/files/bafudipanidebodax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66048758492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9996/2024/files/nipotame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2391/7475/files/58090447117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1512/7708/files/linutato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1656/6422/files/26964666426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2873/3352/files/10965278772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5661/0976/files/pifobabunijakeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2508/8168/files/piligabudova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wajumibuxup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7976/1061/files/lifesidegerukag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vaxopegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2812/7637/files/51942630020.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_off000065c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65C5 5348 bytes
SHA-256: 2d8f3cf0b47df6cf6d184628e7ba10237fe7809c3a45d3c9c0e7567ccbab831e
font_01_sfnt_off00007809.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7809 9732 bytes
SHA-256: ba74abd08481ccde62a435e8b9176616f4b450229dd105ecead657207a825156

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