Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d6d02abd9ead93b…

MALICIOUS

PDF

45.9 KB Created: 2020-09-29 18:58:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a925108abafda6b2a6ecd033ddf7e8c3 SHA-1: f64c7fd991c98dbc589f05fe32059be7e830dccd SHA-256: 5d6d02abd9ead93bd4ae1faf5a3a1a574152d15b52e43fb8460b2987145e9ccb
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links pointing to redirectors and SEO farms, designed to lure users into clicking malicious URLs. The ML classifier strongly indicated maliciousness, and the presence of redirector links suggests a phishing or malware distribution attempt. No scripts were extracted, but the document structure and embedded links are indicative of a malicious campaign.

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://ggtraff.ru/strik?keyword=amylose+cardiaque+irm+pdf In PDF document text
    • http://wuruso.en.katakeresztely.com/uploads/1/3/2/3/132303221/644328.pdfIn PDF document text
    • http://files.clergysurvey.com/uploads/1/3/1/3/131379396/supujivugujoradiwure.pdfIn PDF document text
    • http://faguzavut.varanasiastro.com/uploads/1/3/1/4/131409098/9791adf6a1.pdfIn PDF document text
    • http://files.sydneykarls.com/uploads/1/3/1/3/131381919/d0a73a5bcb388.pdfIn PDF document text
    • http://files.ashleyerina.com/uploads/1/3/1/1/131163550/91ea94.pdfIn PDF document text
    • http://files.resosurdite.com/uploads/1/3/1/4/131408788/bujelimi_vagoxizerat_zowunusuzabose_nufuju.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0431/3247/files/easl_practice_guidelines_hcc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4520/3618/files/peramupotut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/2016/0671/files/unanimous_consent_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/1571/1138/files/julio-claudian_dynasty_family_tree.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5014/7745/files/equidistant_projection.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2329/2840/files/dusuraroxalixuzixotizep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4432/1945/files/advantages_and_disadvantages_of_twisted_pair_cable.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000685e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x685E 5216 bytes
SHA-256: 3f3e90392a96e63fa90ed221766472ac8fc63c4cc7990442529ec0b3f0df4394
font_01_sfnt_off00007a1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A1E 10196 bytes
SHA-256: bfa98ef02a1c3ea997b9f318b2c96ed2b7b55b8204c3645e7cf5e819c792569c
font_02_sfnt_off00009d06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D06 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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