Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d45c60ce34f9ddf…

MALICIOUS

PDF

42.4 KB Created: 2020-08-07 21:23:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1d3550ee4eba2446823be2a9e5c6f23 SHA-1: 7293f3fcf0f46feff0b0c06d7a9869ee346e041e SHA-256: 9d45c60ce34f9ddf2ff1ca886b73191647bdb072f5919df8a4528d5313d1a21f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to redirector infrastructure like 'ttraff.com'. This suggests a link farm or SEO poisoning attack designed to trick users into downloading potentially malicious content. The ML classifier also strongly indicated maliciousness.

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=social+media+marketing+strategy+2020+pdf In PDF document text
    • http://files.sfafs.org/uploads/1/3/1/8/131856852/wuwomezudapi_joburosororet_vedulijinodi.pdfIn PDF document text
    • http://files.pickeringhardyplanters.co.uk/uploads/1/3/1/3/131381518/zizomojodakod.pdfIn PDF document text
    • http://nozawepam.lifespiritwisdom.com/uploads/1/3/1/4/131437532/c5390628637198.pdfIn PDF document text
    • http://sofupigo.aweinbergerld.com/uploads/1/3/1/6/131607163/jivupasatimajosimog.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/1/0430/8133/4935/files/absceso_hepatico_causas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7196/3296/files/vubaforavidoxunomavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/bowevogiruza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8301/4048/files/hamstring_injury_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2986/4343/files/fadedimukakuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/halogen_derivatives_of_alkanes_and_arenes_notes_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7680/5018/files/nanomitelujuloselila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9359/0167/files/28817061492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9302/5183/files/saida_mohammed_haddou.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3464/6440/files/virin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lofolevunukexus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2843/8440/files/84646681847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8909/9938/files/horton_summit_150_crossbow_manual.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 3

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_off00006600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6600 6020 bytes
SHA-256: 784b0814fe9ee7b18a48835167325bf6f0bf62c9676a967b872f71c60aa24e2c
font_01_sfnt_off00007a75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A75 9908 bytes
SHA-256: 18a9d1092187c83d4cd816b71caab6ebaa3722cea1b284d380d90a39c5de7257

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