Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf456938af43ada5…

MALICIOUS

PDF

40.4 KB Created: 2020-08-25 15:57:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 251079f1359567b3c1a04cdf1fac11dc SHA-1: c339ae0095487c263c16903a123d304c34859351 SHA-256: bf456938af43ada57c9144ca189363db6ea03a2b9a53c06ee324320ba2b447b8
194 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of a link farm, embedding a large number of external links, many of which point to Shopify-hosted PDFs. One of these links, 'https://ttraff.cc/pify?keyword=belgrade+news+police+reports', is identified as a malicious redirector. The ML classifier also strongly flagged this PDF as malicious. The primary attack pattern involves luring users to malicious infrastructure through a deceptive link.

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=belgrade+news+police+reports In PDF document text
    • http://vabonove.redlineathletics242.com/uploads/1/3/1/4/131453060/powadesuxu.pdfIn PDF document text
    • http://files.randiebrunolaw.com/uploads/1/3/2/7/132741089/vukawedimojenizexole.pdfIn PDF document text
    • http://files.creativationevents.com/uploads/1/3/2/6/132680986/waxadevepi.pdfIn PDF document text
    • http://files.estellessweetitchblankets.com/uploads/1/3/1/4/131409170/tixavaxanepuluxuvit.pdfIn PDF document text
    • http://nuvepoveb.jlrodgers.com/uploads/1/3/2/6/132696398/2606893.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/1/0437/3485/9927/files/funawazozewumesako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1446/3394/files/gta_san_andreas_lite_apk_aptoide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2488/7456/files/definitions_of_personality_by_psychologists.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3547/6636/files/tasebupezibuxetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6573/7370/files/90811579165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/9845978797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2358/0835/files/augmentative_alternative_communication.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/3407/0440/files/namav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3329/7058/files/pupipijamapuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/76659875170.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_off00006125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6125 5380 bytes
SHA-256: e4733e51c1ab4841e50ad5f3b3fbb6eaaaccce05c6802691574c045e564d878d
font_01_sfnt_off00007390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7390 9732 bytes
SHA-256: a2bd6aa045ac98e921002bfbe9087ea177ec9bf85edda85bd112afe35d875ccf

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