Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdda9bfe68ec6679…

MALICIOUS

PDF

33.4 KB Created: 2020-08-07 08:39:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e7a93560a22dd81cb8526c4dcfb6ef4 SHA-1: fc3ae9a73ef963bef365ccfac1a51b9b686d6734 SHA-256: bdda9bfe68ec66796f8409c3e75103ac7d12c30768a2bc9e0c21738c6e300d18
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=human+body+parts+chart+pdf', is designed to lure users into clicking it under the guise of a benign document. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, many of which are hosted on Shopify. The primary malicious URL is the most critical IOC.

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=human+body+parts+chart+pdf In PDF document text
    • http://files.porterridgeband.org/uploads/1/3/0/9/130969565/duwunuxepugegoxetig.pdfIn PDF document text
    • http://files.givshighcaliberbeagles.com/uploads/1/3/0/7/130775921/nabuxekozeluri-wosegore-zotivuluk-sexesidav.pdfIn PDF document text
    • http://files.palmbayclub.net/uploads/1/3/0/7/130775831/tanik.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/1/0432/5684/0354/files/google_materials_colors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6694/7744/files/intermediate_time_table_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5068/0991/files/fall_out_boy_ring_tone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1357/0709/files/buzugijutupapaguv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2260/4695/files/agenda_2020_italiano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/melunovufevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5637/2641/files/wexiweradoxasifowupeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0524/5597/files/14251979946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8016/3227/files/27173623749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0512/4516/files/bavomitesema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6842/3330/files/76836976598.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4273/4237/files/pivizirusamagutorud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/33564753027.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 4

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_off00004613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4613 5564 bytes
SHA-256: 51c04d221162a4351e10f86417a9cd1c03fd6f5eab088eaa62199a0cde1c58c0
font_01_sfnt_off000058ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58CE 9428 bytes
SHA-256: d7fa32d4830b02158be962eabbaf13bb6817e0c6173fbe4e6c98057562a362e0

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