Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4c0d5cd87598341…

MALICIOUS

PDF

42.0 KB Created: 2020-08-19 05:09:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 55314cb6b996053ce91c137a89a169db SHA-1: fcf6f55ebe16727d0d8eabe352089a0f9db221c9 SHA-256: d4c0d5cd87598341b506a6fedfad7bc0c0c4a663e73fe8eea6b3e3aac4a607db
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm or SEO poisoning attempt. One critical heuristic firing indicates a direct link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=identity+theft+police+report+template'. This redirector is likely used to funnel victims to further malicious content or phishing pages. The document body, though partially corrupted, contains text related to identity theft and police reports, aligning with the malicious redirector's keyword.

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=identity+theft+police+report+template In PDF document text
    • http://files.wildflowerhills.com/uploads/1/3/2/8/132814996/somoxu-vixofowimusemid.pdfIn PDF document text
    • http://files.nearnorthtr.com/uploads/1/3/1/1/131163533/bawinaguz.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/1/0433/0687/7080/files/nelafujadodejofit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2129/5006/files/chp_incident_report_archives.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1470/9670/files/60536405560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9816/8727/files/acids_bases_and_salts_worksheet_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1013/files/noguvev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1669/8526/files/74643959931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/67850163971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3022/2747/files/owens_corning_duration_shingle_warranty.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7133/1734/files/pebagumakenagipajirafoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5799/5160/files/fubilijimibakevewa.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 2

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_off0000668a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x668A 5256 bytes
SHA-256: 7a655d711529b30e1e9db81ac5265176ae72d20cd65f4089a0f28a5fe3090802
font_01_sfnt_off00007840.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7840 10248 bytes
SHA-256: aaa144563ab6e03d5853f229560efbca3b803e228e193e48490f8bfbffeb3b0c

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