Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a533fc4388b8a81…

MALICIOUS

PDF

42.9 KB Created: 2020-08-07 05:17:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c12a25243916a105fd84b1619cbf5a4 SHA-1: aebf94aa7d4b908e415cafce38e93c36f33c7c8c SHA-256: 3a533fc4388b8a81d8bd801a1a67938788dad4c8df12de099b200d1757dc2153
234 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body also contains this URL along with numerous other links hosted on Shopify and other domains, indicating a link farm. The 'SE_BROWSER_INSTALL_LURE' heuristic suggests the document's text is designed to trick the user into installing something, likely related to the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=lightweight+pdf+reader+linux In PDF document text
    • http://bapezi.furgetusnotrescue.org/uploads/1/3/0/7/130738714/a42855738715.pdfIn PDF document text
    • http://files.sharidellapenna.com/uploads/1/3/0/8/130813988/romijojeledatuxusepo.pdfIn PDF document text
    • http://duwit.laboniteca.com/uploads/1/3/2/7/132740435/sojopajugele.pdfIn PDF document text
    • http://files.audienceseurope.com/uploads/1/3/1/1/131164425/0c083032.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/1/0428/9177/2063/files/birsen_yaynevi_statik_kitab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5156/5724/files/58732839339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72593533024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/1160/9500/files/effective_academic_writing_second_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9881/6150/files/hssc_lab_assistant_answer_key_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42778697636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3082/3583/files/hvac_technician_job_description.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9371/2286/files/lesabekumupolabazupun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/76913920344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0496/8603/files/vuzuwowewawarozejoxilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9956/2911/files/53881654973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3069/9414/files/jajabaselelarurad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8321/6549/files/zubamokisexodeg.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006900.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6900 5228 bytes
SHA-256: 2266d2253154586ac7d4b4757af1b29365e3c953ad1bdb103ed9808de6283184
font_01_sfnt_off00007ae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE3 10364 bytes
SHA-256: 2017392d16c7f135deb07f4b524de49d055a0eafe1c31982efe87e0ac0ddd578

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