Malicious PDF — malware analysis report

Static analysis result for SHA-256 89958b2f7345999c…

MALICIOUS

PDF

52.8 KB Created: 2020-07-27 14:54:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c94b7bc86a169e4e05d769e8d527a41 SHA-1: 0c2c59027b34b5a8f9a92603304272be56f47879 SHA-256: 89958b2f7345999ce79be4fed98c9e9b83c9d6c14bfed1f985852bd853ebb69c
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDFs, many of which are hosted on Shopify and appear to be part of an SEO link farm designed to drive traffic. A critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final malicious destination. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and contains no readable text, suggesting its primary purpose is to host these malicious links.

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=game+anime+chaos+mod+apk In PDF document text
    • http://files.kierstenbrockman.com/uploads/1/3/0/7/130775145/dazowog.pdfIn PDF document text
    • http://files.centralparkwichita.com/uploads/1/3/1/4/131453255/9594955.pdfIn PDF document text
    • http://files.chattanoogafiberartsguild.com/uploads/1/3/2/6/132696030/9037792.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/1/0434/0970/3061/files/tedozivulobex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0445/9170/files/8755257641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7565/6094/files/xudixoxejaworofunanisen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6702/3259/files/4013297730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4350/3783/files/serifozuxamifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3486/1987/files/fadugure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0904/0803/files/66824851089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4800/0922/files/wudapapeluredav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4996/5985/files/12868147211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2041/9226/files/27815545797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8439/8246/files/96485017047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4447/0938/files/luvaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0480/3746/files/7273248682.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 1

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_off000091b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91B7 4988 bytes
SHA-256: 170dd29952d67050ca12f763be4084230f42fd2af66fef299ee4bca68b58b116
font_01_sfnt_off0000a279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA279 10316 bytes
SHA-256: db4669caa5355143319be7699ec5530ae1b72f896cb95d6e7e40bbe56305fb7c

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