Malicious PDF — malware analysis report

Static analysis result for SHA-256 734b25a62360ca2c…

MALICIOUS

PDF

41.3 KB Created: 2020-08-04 09:24:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da91819059aedc169a64691db4f52321 SHA-1: 036708b609ba088734281b9c79b754aee4285233 SHA-256: 734b25a62360ca2c1d718f37123b8da2f9cd899a28e65490746c035625522e65
194 Risk Score

Malware Insights

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

The PDF document contains numerous links to external resources, including a primary redirector URL, suggesting a phishing or scam attempt. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs points towards an attempt to redirect users to malicious infrastructure. No scripts were extracted, but the document's structure and embedded links are indicative of a social engineering attack.

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=fra+forward+rate+agreement+pdf In PDF document text
    • http://files.patsysbarandgrill.com/uploads/1/3/0/9/130969717/wuxirib.pdfIn PDF document text
    • http://files.ruthbrambleceramics.com/uploads/1/3/1/4/131438616/lasesufo_fimap.pdfIn PDF document text
    • http://files.vlantroop.com/uploads/1/3/1/4/131437983/39f591041b.pdfIn PDF document text
    • http://files.blackcountryfishing.co.uk/uploads/1/3/0/8/130815095/zugaj.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/1/0432/7365/0334/files/89531439058.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fikikotiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0379/7913/files/komagivotivowilixoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8996/0865/files/lidoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6249/3345/files/gusebotofuvunudupoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8794/6133/files/13089093762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/fivatobaxij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8631/5671/files/fetedebawuxalezisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2004/1886/files/60617540236.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8254/6341/files/free_ringtones_and_ringbacks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9857/8848/files/quickens_loans_arena_seat_viewer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4016/files/99893546316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2071/4137/files/peminesiropob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8486/4917/files/zusalenatiditodonuzuje.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 7

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_off000062a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A3 5200 bytes
SHA-256: 4ac4042ec2079c3d3ffab7e4f0fc3d9bd82690d4ccf2f90999d243192a8846a6
font_01_sfnt_off00007458.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7458 10556 bytes
SHA-256: 243355cbb5882c6c29b3b34ae8166b1fad41a664a60a1355299ad748de08b8ec

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