Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5b544249733799d…

MALICIOUS

PDF

34.2 KB Created: 2020-08-18 20:56:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 09218a359f64156a88e4dde1d83f27d5 SHA-1: 0e17c51c5145b0ef72ef75553c0626edfaae2a74 SHA-256: c5b544249733799df16eca0281b1cbe9da1af8e06ce95ecc05e164a1166a88b5
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=new+supplier+approval+form+template'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs, many hosted on cdn.shopify.com. The document body also contains the malicious URL, reinforcing the lure. The ML classifier strongly flagged this PDF 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.cc/pify?keyword=new+supplier+approval+form+template In PDF document text
    • http://zalet.doublefmetalart.com/uploads/1/3/0/9/130969059/1236503.pdfIn PDF document text
    • http://files.adametranslationservices.com/uploads/1/3/0/8/130873708/5fb74c7501a.pdfIn PDF document text
    • http://files.dominiquegebbink.com/uploads/1/3/1/3/131380343/1abb30935.pdfIn PDF document text
    • http://files.reframephx.org/uploads/1/3/0/7/130776542/dupuvowime-sujen-bifujigar-kujubojo.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/1/0434/0681/9477/files/75443209485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/41560353049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5930/5880/files/15196528854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87960197539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9002/5379/files/age_uk_deprivation_of_assets_fact_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/4238/4545/files/html_to_linux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/vejowuxavidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6562/0118/files/58860668524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8525/0216/files/dot_inspection_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9688/1814/files/88133676518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0346/2303/files/71585713590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3469/6097/files/36497965068.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_off0000481b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x481B 5168 bytes
SHA-256: 7d7d6bc1e1c78100de9133f53bf47c737e5c243eddfdacd9ba671b7ad2c8b29d
font_01_sfnt_off000059b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59B2 10028 bytes
SHA-256: 2fbf3a230fd094266da46ac53354fcda8d2353d86a7521b2b5a9bad4325ddebb

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