Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ff605ce73f40b05…

MALICIOUS

PDF

45.0 KB Created: 2020-07-31 06:21:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ca66d67196176d16fa31c33bca683dbd SHA-1: d1a5fdab7c750a5cf9053e505031d5aa4edc2f6e SHA-256: 6ff605ce73f40b056c010eaeae2ae1ea108118ea5905df5b190c0932736c762b
194 Risk Score

Malware Insights

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

The PDF file contains numerous links to external PDF files, presented as a link farm, with a primary redirector URL identified as malicious. The document body, though heavily obfuscated, suggests a lure related to a device manual, likely to trick users into clicking malicious links. The ML classifier strongly indicates maliciousness, and the presence of redirector links points towards a phishing or malware distribution scheme.

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=alcatel+mw40v+manual+pdf In PDF document text
    • http://files.science.shenfieldlearning.com/uploads/1/3/0/7/130775902/xikikugilosudab_buzutuz_ganiwixiza.pdfIn PDF document text
    • http://files.amityfarms.com/uploads/1/3/1/3/131380322/d5aeb85.pdfIn PDF document text
    • http://files.ahsra.net/uploads/1/3/0/9/130969926/vazuruzisuweba.pdfIn PDF document text
    • http://files.advanceprolighting.com/uploads/1/3/0/7/130739340/cc0d4ece039d.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/dojezurin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3033/1047/files/fozewawopobafer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7729/5521/files/nejavuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1442/9608/files/34215078898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3568/1180/files/67834399670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7940/1632/files/dilojubudubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7120/1695/files/tivivepofokofimidar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2812/7645/files/bazepidujenejefogodut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6551/5933/files/kugiketajiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bifezunelavezide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7350/2361/files/potamonakupofiriladopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3078/8758/files/7235821503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2562/0374/files/watibozinuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dagezaluvonanapukinuwit.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_off000072f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72F5 5124 bytes
SHA-256: 18f2e869768ffc997ecc11be1cb89e2bcf96acebb797c521d2261d7a40be18df
font_01_sfnt_off00008466.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8466 10012 bytes
SHA-256: 7cf576f82516f17d545e68af61898b517aacc7603f9a8f0d188da802bb19bcb5

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