Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ac59979893e7c32…

MALICIOUS

PDF

69.3 KB Created: 2020-08-07 00:43:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 51ea7a999975fd06448303c852ba85d9 SHA-1: 549e30a80cf77d6fda4d86e1488f2f3083709ac7 SHA-256: 4ac59979893e7c32dd745543dbef932ee6d6adc27679a88ae39f64af0513dc5e
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=historia+de+la+contabilidad+financiera+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, suggesting an attempt to manipulate search engine results or distribute links broadly. The document body, though heavily obfuscated, contains the 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.cc/pify?keyword=historia+de+la+contabilidad+financiera+pdf In PDF document text
    • http://files.staartyou.com/uploads/1/3/0/8/130814492/6736a5b6dd06c.pdfIn PDF document text
    • http://files.troutbum.ca/uploads/1/3/2/7/132710655/046c6686a.pdfIn PDF document text
    • http://files.myremio.com/uploads/1/3/1/4/131452958/88fb154.pdfIn PDF document text
    • http://files.mackenzieemievents.com/uploads/1/3/0/7/130775903/lududevak.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/1/0429/4787/0876/files/gebatujajow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/beginner_mind_suzuki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9746/3715/files/olevia_tv_remote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8351/3494/files/zikisajoreb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/48900966505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96951977507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6129/4757/files/tedegevix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1560/2337/files/zodota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0611/3430/files/mulokubotizet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7971/0360/files/siwanenifugopanugenop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/telumenajepimider.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/jewelry_making_tutorial.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_off0000d0b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0B1 5248 bytes
SHA-256: be6dde75f59666d05cda3d08835a94479554483e907b573fec06c33e75cf992a
font_01_sfnt_off0000e28f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE28F 11388 bytes
SHA-256: 0be1c5d4a00a0c87c85109dd0cf1481aad68a85c10d08e2e24c257e8ce68a499

Open this report in the interactive analyzer, or submit your own file for analysis.