Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e75937801295ba0…

MALICIOUS

PDF

42.2 KB Created: 2020-08-04 21:55:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4855d67032eb5ca40b3f94daba432aef SHA-1: 04b349c243f8974dbb7c160f1d9d1cbd370f4067 SHA-256: 6e75937801295ba0dac478b12d4d374dce8e3debb2078b4af965d98d7a4049ef
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links and a primary redirector URL, indicating a phishing or scam attempt. The heuristic firings confirm the presence of malicious redirector links and a link farm, suggesting an attempt to drive traffic to malicious sites. The ML classifier strongly supports the malicious nature of the document.

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=jazz+guitar+beginner+book+pdf In PDF document text
    • http://files.southwestturfsupply.com/uploads/1/3/2/6/132681783/caa0ce26da57.pdfIn PDF document text
    • http://files.nationalchildrensdayuk.com/uploads/1/3/1/3/131382841/8016114.pdfIn PDF document text
    • http://files.nestampede.com/uploads/1/3/1/6/131606486/b11d7e7833efe65.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/1/0429/5639/0551/files/59417712916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5235/8042/files/rererivudirobadomose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5456/3477/files/piwufajoropafokerakud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2484/8795/files/9687515175.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4498/6280/files/11009411356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8458/2813/files/livros_de_magia_cabalistica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2597/2904/files/purexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2407/9254/files/99140077781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1202/2691/files/taxurinukonen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9726/7112/files/19231125880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3166/4552/files/vapuvome.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
🗂 Part of campaign: aflunky.com 4 samples

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_off0000658b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x658B 5240 bytes
SHA-256: 225a818775c4846574d47f54501848eec2fe54f527312e8042a38bd394338106
font_01_sfnt_off0000777d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x777D 10752 bytes
SHA-256: 162f51c34afac1353743d4a521c784264e42f1acdda1d96b1c4e651d1d8ea5d3

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