Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9c85e05fd559131…

MALICIOUS

PDF

40.0 KB Created: 2020-07-30 23:04:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f080417fe859ba5e3515c1f9f722fac8 SHA-1: 9a8cb38d894e647596980cf22c5f2ced74ca7ee0 SHA-256: d9c85e05fd559131a2cd294b511e4a27a1519de601638a01af0a81b63167c623
194 Risk Score

Malware Insights

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

The PDF file contains a link disguised as a utility for merging PDF documents, which redirects to a known malicious domain (ttraff.cc). This indicates a social engineering lure to direct users to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of its specific intent beyond the malicious redirect.

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=fusionner+deux+document+pdf+en+ligne In PDF document text
    • http://files.maytreearch.com/uploads/1/3/1/4/131438330/towexozilo.pdfIn PDF document text
    • http://files.charlesheinerfiction.com/uploads/1/3/0/8/130873875/3662700.pdfIn PDF document text
    • http://files.dangelorealestate.com/uploads/1/3/1/8/131871781/kifilosujetok-bugepesoxepetup-kisis.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/1/0430/9067/3813/files/33006255788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3348/5727/files/surirabaturiraxanon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8212/1377/files/dexajepepoxupuxegawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73807437975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3365/7498/files/vawiwetax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5116/2523/files/64593540119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5271/8494/files/fajoketis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2446/3525/files/kozix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8475/9711/files/50922075873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/34247287810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7301/0840/files/vizirosed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5637/3659/files/51784827580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3986/7559/files/38635451113.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 6

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_off00005dcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCD 5168 bytes
SHA-256: ab91a21902de8577ed74a38c6c7460ddf22fcbe052c3676599fe8292ef514522
font_01_sfnt_off00006f52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F52 10464 bytes
SHA-256: 437fd7021ff72cd38c10f1101eb15a71b3b7faa06b1ed3864c4e27bffd42a837

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