Malicious PDF — malware analysis report

Static analysis result for SHA-256 22d4569ca0ef3e8b…

MALICIOUS

PDF

38.8 KB Created: 2020-07-14 03:16:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ed98f48a69b46bcd13cb7d41f4475b3 SHA-1: 720728fdee67206affd83e8ab6c47781b1205274 SHA-256: 22d4569ca0ef3e8b561b49583e303b6a6be924be509628d39b1908cbdcd9d738
194 Risk Score

Malware Insights

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

This PDF document acts as a lure, masquerading as a bearing catalogue to entice users to click on embedded links. The primary malicious link directs to a known redirector, which likely leads to further malicious content. The document also contains a large number of external PDF links, forming a link farm to obscure the ultimate destination and potentially for SEO manipulation. No scripts were extracted, and the document body was heavily obfuscated.

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.com/pify?keyword=timken+spherical+roller+bearing+catalogue+pdf In PDF document text
    • http://files.blessingoftheemeraldcoast.com/uploads/1/3/1/4/131437806/49af5e8766e.pdfIn PDF document text
    • http://files.wimberlysbeautybar.com/uploads/1/3/1/3/131381044/788919.pdfIn PDF document text
    • http://files.allicphotographyanddesign.com/uploads/1/3/2/6/132682681/wumipoxanowefuku.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/1/0434/5049/9222/files/xizowozerisasebidege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tagesagebog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ligumugazawebamupewav.pdfIn PDF document text
    • https://foburabowo.files.wordpress.com/2020/06/sulotepedudejoxofexemek.pdfIn PDF document text
    • https://vigupowiri.files.wordpress.com/2020/07/vowujotedokamu.pdfIn PDF document text
    • https://topafajanew.files.wordpress.com/2020/06/wizekuwoxofuxekofibeluzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1250/5252/files/44308219164.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4950/8246/files/39428137542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2753/7828/files/95595081596.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/48880371243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0099/5741/files/12255207569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wudusojixidotivage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/sojedarewivililewiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/moduzibupazokemekowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65760981278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61411835552.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000576c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x576C 5604 bytes
SHA-256: c8ec519b4f2d29730f689622add4a430eb5df0f1d140c2969ec14fbfe8585265
font_01_sfnt_off00006a38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A38 10088 bytes
SHA-256: 777cc08c2665fa92f2c3ebdf3c6a252989dc106519981a9f93d97a09c7204c0e

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