Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1d6d8ffe945c185…

MALICIOUS

PDF

43.0 KB Created: 2020-09-09 21:55:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4fbef754d1846fc86bdba178add1f23f SHA-1: 5c1b83b121b2dd729c8fc085679ee1855d7eafba SHA-256: c1d6d8ffe945c18595de13b9afd63584f7389e357bd6179c12402597165dbd62
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector link to 'https://ttraff.me/wix?keyword=ring+size+guide+cm'. Another critical heuristic identified a PDF link farm, suggesting an attempt to manipulate search engine results or distribute malicious content. The document body, though heavily obfuscated, contains the same malicious URL and benign URLs, likely as part of a SEO poisoning or phishing lure. No scripts were extracted, but the presence of malicious redirector links and a link farm strongly suggests a phishing or malware distribution attempt.

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.me/wix?keyword=ring+size+guide+cm In PDF document text
    • http://dasomemiw.mdlashesllc.com/uploads/1/3/2/7/132741508/xevekebem_suwurediju.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://static.usrfiles.com/ugd/b222ea_a5b446dd2567453da8e4e90d863ae96f.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4d400c_c2bdc6fae8fa4e5b93f0845b7a92e8b7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/f3ecbe_026d2a1b6d0e41abae5a3ff619f1dce5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/197ed4_afa0c4a7809545809222f89d63b2496d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/856cea_4eb8e055c0c14a85ac7e5185432f7580.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/45e30f_724145246e4a4c59b003951a9e1f45ea.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/685707_56329ee194a54d638e3a8ada0ba31a79.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/65b209_c99b17a468b645b4a1731ca70b46c780.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/217b8a_a08a1a3902ee44f1852f1d8effceb3d4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4cf28d_9f1cc7d04416412fb39a59a650f6af51.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0049ca_b49c2d0e1a20496c8251d4fd60144a6b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/2ca09c_5cc48caa32b6489982a4e5546dbefb0b.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_off00005c31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C31 4668 bytes
SHA-256: 030d9c4640ff0f0929e60dc54d95e48c7aa7f7bb84a525c8e5534738290bbcee
font_01_sfnt_off00006bfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BFE 11024 bytes
SHA-256: 7f2dc66f33cd075ecc96e3d9d6a6db92a63f7fd91268adcb4b49f430f0ef132d
font_02_sfnt_off00009172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9172 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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