Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffaaedd770051348…

MALICIOUS

PDF

34.7 KB Created: 2020-08-22 07:14:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 781e21cab1334e647d93bd5fedf5eb05 SHA-1: 51d4252eeb6f8eeb8e6a5d3161e3dbf95134223d SHA-256: ffaaedd77005134868e24bf4f08c1d62368fa4d94edc8f9234a96ae0460b27be
194 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO poisoning. One critical heuristic identified a link to a known malicious redirector at 'ttraff.com', which is likely the primary malicious payload delivery mechanism. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=qradar+dsm+configuration+guide', indicating a lure to download further malicious content.

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=qradar+dsm+configuration+guide In PDF document text
    • http://files.hayletscommunicate.com/uploads/1/3/0/7/130776712/niguxuxasebu-sibubos-fuzadawumukow.pdfIn PDF document text
    • http://vodix.ritasimonwedding.com/uploads/1/3/0/7/130739240/778d1f62efda4b.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/1/0444/1836/7654/files/vefasobir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7285/5957/files/wav__mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7757/4551/files/fozoditageravonubuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9170/5500/files/jupajez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4291/3952/files/17028204967.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kesazemoluvumexon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0274/9347/files/writing_book_titles_correctly_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3849/9235/files/fufibipijiporituw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9324/5600/files/fernando_pessoa_poemas_de_alberto_caeiro.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 2

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_off000049e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49E0 5372 bytes
SHA-256: a33975e3e5152a03f8f37ce5585eaca2de56e522953041f34a2b1bdffe89fb45
font_01_sfnt_off00005c03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C03 10032 bytes
SHA-256: b6836fff898382cf22ba336ffc72002ee6395763287247bf471943a766598836

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