Malicious PDF — malware analysis report

Static analysis result for SHA-256 990f03207675a905…

MALICIOUS

PDF

54.6 KB Created: 2020-07-28 04:40:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 332e15962da8dbb006fa7449a54f5e1d SHA-1: 95b982ac1728aade3ca4ee0a155157227b032129 SHA-256: 990f03207675a905f9a49c6e00e5886e87608219739678d7fadb9dd4bdab36f0
194 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded links, a technique often used to create SEO link farms. One of the primary links directs to a known malicious redirector at 'ttraff.ru', which is designed to lead users to further malicious content. The document body, though heavily obfuscated, appears to be a lure related to 'Washington dc zip code map pdf'.

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=washington+dc+zip+code+map+pdf In PDF document text
    • http://files.debbieclaxton.co.uk/uploads/1/3/1/8/131856121/5346599.pdfIn PDF document text
    • http://files.lazuliliterarygroup.com/uploads/1/3/0/8/130873921/woruji.pdfIn PDF document text
    • http://files.thedragonshoard.net/uploads/1/3/0/9/130969576/c27d731e5f.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/1/0431/5856/9115/files/mumavefojudidom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6496/5782/files/60200860995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jidaxuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9875/1641/files/xexiraziwuvopunodixiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8219/4852/files/38842805707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8995/9839/files/jakikotopowuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/4586874612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4352/0666/files/nokafakabufijexadad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/37162098272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4275/7029/files/42137472866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/61493445951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/soreluseloxajakikolo.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_off00008fb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FB7 5292 bytes
SHA-256: 1d4f73b293eaa961a2ef89ab2df30631c9a69d741e382d2661ba2293c7f2487f
font_01_sfnt_off0000a1a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1A1 13220 bytes
SHA-256: a6418686a0dfdf4d701ed90701eb38c7c143cd35c7682727aa5b6e4e08efb82f

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