Malicious PDF — malware analysis report

Static analysis result for SHA-256 abcc9f155d25132f…

MALICIOUS

PDF

48.1 KB Created: 2020-07-31 15:04:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c4c47b996b5ea2d4daea189d2d5c847f SHA-1: c6cf8c3bea77cac4b3db4c9a29168f85cee056a5 SHA-256: abcc9f155d25132f3ca76b4e0495481816fc58ecd857611249504b0fcc084c41
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector pointing to 'ttraff.com'. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of numerous external links, many hosted on seemingly unrelated domains, suggests a link farm or redirection scheme designed to lead users to malicious content. No scripts were extracted from this sample.

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.com/pify?keyword=audit+risk+journal+pdf In PDF document text
    • http://files.seiburyusanjose.com/uploads/1/3/0/7/130739032/getinedurarurupidi.pdfIn PDF document text
    • http://files.lynncociani.com/uploads/1/3/1/4/131437308/virofinos_vofuf.pdfIn PDF document text
    • http://files.mushroomsandmore.net/uploads/1/3/1/0/131070434/8886f0b0.pdfIn PDF document text
    • http://files.ajeplanners.com/uploads/1/3/1/4/131406816/sifojopese_nidukuzinagimo_xutokajofuzi_roxurugar.pdfIn PDF document text
    • http://files.stuffweallwant.com/uploads/1/3/0/7/130775635/6360a6e70.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/1/0430/0262/6202/files/98589225736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3510/6203/files/20645344644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7680/5018/files/14442740121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9314/8313/files/1746502296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/99053491922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5149/1236/files/16945695319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7902/5318/files/fundamentals_of_electrical_engineering_rizzoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5509/5716/files/xamoruwejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8784/7843/files/1910431803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6160/6565/files/wajagute.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_off0000801e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x801E 4928 bytes
SHA-256: 5e4602236193be8c9c3914d3f3fe07e6fdaa75674841526d94ff79cd7ea2c55d
font_01_sfnt_off000090e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90E7 10128 bytes
SHA-256: 749e630ef145528c2bf1fdcc191593e767db1a968bee486d5bc3fd019e89938c

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