Malicious PDF — malware analysis report

Static analysis result for SHA-256 17250f3b811dac55…

MALICIOUS

PDF

42.4 KB Created: 2020-08-08 13:40:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6d4d9ee10826a458c4c4394e11ebb30 SHA-1: 2deea8f14bf2926efcfc71336251719b1279ff3e SHA-256: 17250f3b811dac55387f6936840b08ab7fb9aff7f01a657135816ffa117df047
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many of which point to a redirector infrastructure known for malicious activity. The primary redirector URL is https://ttraff.cc/pify?keyword=vomiting+in+infants+pdf, which is designed to lure users into downloading further malicious content. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests an attempt to distribute malware or phish for information.

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=vomiting+in+infants+pdf In PDF document text
    • http://files.christianaharrell.com/uploads/1/3/2/6/132695903/d5db8833.pdfIn PDF document text
    • http://files.agbcdenton.com/uploads/1/3/0/7/130740073/lefuzeka_mizebenibe.pdfIn PDF document text
    • http://files.valerius.us/uploads/1/3/1/4/131437778/bixigudak.pdfIn PDF document text
    • http://files.lillybirdbabyboutique.com/uploads/1/3/0/8/130813757/berowejisoz.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/1/0431/9690/7678/files/23661112708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6373/6485/files/jason_castro_hallelujah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1369814796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8774/9525/files/forerozalonejibexasekogar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6228/8793/files/duzeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8774/8519/files/biodata_format_for_marriage_for_girl_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6749/8911/files/68114926095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2004/0866/files/38806597007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4468/4454/files/42301097939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/zakuduvuwatedogun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5812/6245/files/9754535157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9996/2024/files/23961813957.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_off00006927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6927 5196 bytes
SHA-256: 9bbd321a04f4b4215f6a3f89d1fe9ae42e343f1c0c3b2e602263ec2e0d62948e
font_01_sfnt_off00007ad3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD3 9980 bytes
SHA-256: 3c3d529c9f5e0f4730b4f71875786c3fe5662a63041fac5f52036b8b3a341d3a

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