Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f58aa9a8be8251e…

MALICIOUS

PDF

64.2 KB Created: 2020-08-16 18:38:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f5eb436159c61e607e4c6725ef03188d SHA-1: 55ebb7c57ac23f9fb6ff18db7000215e50c803aa SHA-256: 7f58aa9a8be8251ef2044e2a88d51bb10f8aed751117442969fd5549c686d8ff
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that point to a known malicious redirector, ttraff.cc, which is designed to lead users to malicious sites. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The presence of numerous external PDF links further indicates a link farm used for SEO poisoning to attract victims.

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=gastrointestinal+system+pdf In PDF document text
    • http://ganuzoveg.musicwithmskrauss.com/uploads/1/3/2/6/132696483/9835991.pdfIn PDF document text
    • http://ribetiz.sarahavalia.com/uploads/1/3/0/9/130969723/zivig.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/1/0428/9835/8432/files/kosetomamevisired.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43561311815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8549/6482/files/58209404301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1302/0570/files/74354994675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2068/1377/files/rezobofakegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mosagewenusuwaguxizekud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3049/4882/files/80100562098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8424/3351/files/88939993534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7488/5534/files/74085649629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2313/7957/files/magigas.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 1

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_off0000bdab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDAB 5320 bytes
SHA-256: a66492325f0e8971f0b021632f03428fb4e84fefb90979aeaee228e84dae36e2
font_01_sfnt_off0000cfbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFBC 10544 bytes
SHA-256: 6f0c58318e1b9fbeef21441c46b5928efa4a381f3045f282eacae689c74b2c2c

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