Malicious PDF — malware analysis report

Static analysis result for SHA-256 56590e3591446cc5…

MALICIOUS

PDF

51.1 KB Created: 2020-08-01 16:58:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ffb7826063733cb5e21a408308c64331 SHA-1: 188de6b8f444c7e8f0ef75bc0741ae3159f414a0 SHA-256: 56590e3591446cc578efe0d8320029b31424a8f8449d2ac96242938d7993e1a8
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector, ttraff.ru, which is used in conjunction with a search query for 'vmware fusion serialz'. This indicates a phishing attempt disguised as a software key search result. The document body, though heavily obfuscated, contains references to the same malicious URL.

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=vmware+fusion+serialz In PDF document text
    • http://files.whatisabbydoing.com/uploads/1/3/0/8/130874197/ripogifidezij.pdfIn PDF document text
    • http://files.ugokiteboardingwest.com/uploads/1/3/1/4/131453198/6872352.pdfIn PDF document text
    • http://files.jimpendergrass.com/uploads/1/3/2/8/132815961/xabixejeje-nenowapiwage-jisematonalon.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/1/0435/9703/7730/files/zepexomukapabobukibizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2255/7082/files/37027260130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xatet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0459/1271/files/pimolatifiguzurev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2643/1652/files/63456354195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasebiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7437/9173/files/74185967957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3608/0288/files/podigexilab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7776/3226/files/zuriradojilitoropokored.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3319/7718/files/xixatabeja.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 8

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_off000084ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84EE 5020 bytes
SHA-256: 4b8100957543e6d56896d6426c266bb5bc961d833097651c285022f7c977882f
font_01_sfnt_off00009606.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9606 13056 bytes
SHA-256: d3450f0f653adadea1531c5a77b252a5c2d2f468ec541e2dcb16458732f67847

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