Malicious PDF — malware analysis report

Static analysis result for SHA-256 07b4a90b2ff869af…

MALICIOUS

PDF

41.9 KB Created: 2020-08-19 05:32:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0be3124cf6818dd9d1783a95cadd2241 SHA-1: 5216f61d9e01b2274166526c01a9982a41eaf5f9 SHA-256: 07b4a90b2ff869af625e763cbd9471cc3809e75c8207f3108e7894c76b090501
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious infrastructure, specifically a redirector URL designed for SEO-based phishing. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Apache Hadoop YARN' and includes the malicious redirector URL. The presence of numerous links to external PDFs, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to attract victims.

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.ru/pify?keyword=apache+hadoop+yarn+pdf In PDF document text
    • http://vasetaz.carriebeleno.com/uploads/1/3/0/7/130775291/lurexobimuxor_zarujadamivipu.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/1/0428/5572/7260/files/zirazalevagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3876/9303/files/47523499732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7157/2885/files/83800176056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9005/8152/files/papipibujatozagew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8215/4135/files/38409296621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6464/6042/files/91918525497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6022/3382/files/cambridge_essential_english_dictionary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5719/8742/files/hamlet_monologue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2341/6987/files/replace_belt_proform_treadmill.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8188/2013/files/13641695771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7121/7565/files/bmw_i3_accessories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2692/2146/files/fury_warrior_best_in_slot.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 2

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_off0000677c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x677C 5124 bytes
SHA-256: 10825245b40358ab79af785c7af9a01920552a0c309c0fc48c22ab7c2644d17f
font_01_sfnt_off000078e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E5 9936 bytes
SHA-256: c437ba318f314f97f209a607a0f87492b032f5dc7303bd3ab283201fe42c6c9b

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