Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdb2ede631134859…

MALICIOUS

PDF

50.2 KB Created: 2020-08-11 09:26:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 329d63bc82718924b7e8b437ca379f4c SHA-1: 79e97dffbdc0880f3cb22ba25d2609d2e1f6b576 SHA-256: fdb2ede631134859a0aad80522d7a74ade9d4691a5193e7e04e0c08bfca284c9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links pointing to Shopify-hosted PDF files, indicative of an SEO link farm. One of these links, 'https://ttraff.cc/pify?keyword=isobaric+isochoric+isothermal+and+adiabatic+processes+pdf', is identified as a malicious redirector. This suggests the document is designed to lure users through search engines and then redirect them to 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.cc/pify?keyword=isobaric+isochoric+isothermal+and+adiabatic+processes+pdf In PDF document text
    • http://gudakufat.forestchi.co.uk/uploads/1/3/1/6/131637309/kuvufexejeteralolo.pdfIn PDF document text
    • http://rologob.ryanlakanen.com/uploads/1/3/0/7/130775162/e91fb972bb4c.pdfIn PDF document text
    • http://files.eldridgechurchofchrist.com/uploads/1/3/1/4/131406527/d281edcfce2360.pdfIn PDF document text
    • http://pofusak.valeriaflorescano.net/uploads/1/3/0/7/130739664/lezolaj.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/1/0428/5225/3863/files/lajaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6677/8009/files/wonozotowesevakipemenagul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69296453687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6629/2389/files/jenogiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6271/2734/files/tesufawupuvemifowigatejef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7395/4204/files/93679726000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11411440246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4276/5976/files/43990177796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5350/5946/files/fumibomipokativizav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0496/8603/files/18674349374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6454/8762/files/bully_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3133/0969/files/tagoximuzifogovivuxa.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_off00008462.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8462 5472 bytes
SHA-256: 65d859d5ee31979d77c0dd372da412ebdd372988bdfae3ef801fc695d4ad92ce
font_01_sfnt_off000096ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96CE 10788 bytes
SHA-256: 6eb8bcf684243687af705282c43a3cf738d72d9d796706586414eb30b101b7ad

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