Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b1432e3adddb4d6…

MALICIOUS

PDF

41.3 KB Created: 2020-09-18 11:43:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 72a9fe418aaeaa7878425d945f504b67 SHA-1: d910fca70f4b63251a9e4cffab8f27f2ccf17bb2 SHA-256: 0b1432e3adddb4d60200583e6b13ca732145fa10191055717fada3aff0376957
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, including a critical redirector link to 'ttraff.link', suggesting a phishing or malware distribution attempt. The document body, though partially corrupted, contains text related to 'reporte de trabajo' and the wkhtmltopdf application, indicating a lure. The presence of a link farm with 26 PDF links further supports the malicious intent of directing users to potentially harmful content.

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.link/wix?keyword=como+se+hace+un+reporte+de+trabajo In PDF document text
    • http://files.bankscountyfootball.com/uploads/1/3/1/6/131636978/zabalelosaxoseloxena.pdfIn PDF document text
    • http://xononef.sundancecrow.com/uploads/1/3/1/4/131437299/35ca3339.pdfIn PDF document text
    • http://files.workwithflair.com/uploads/1/3/0/8/130874258/3505481.pdfIn PDF document text
    • http://files.boonecountyfairia.com/uploads/1/3/0/9/130969434/vozezovuri-vonafotug-bexowekisuko-pudegeviwit.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://4415d8b2-432a-41b4-9619-a0e7400da5ac.filesusr.com/ugd/74e9cf_a868bc2c604d4feaac63bc6778952ac6.pdf?index=trueIn 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/1/0429/1588/9305/files/templates_powerpoint_2016_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8001/5271/files/belajar_percakapan_bahasa_arab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2433/4498/files/79020875499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/3725/5838/files/shapes_worksheets_for_kg2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9957/8773/files/matuwevovadipefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3397/7255/files/jejuximejoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5180/9959/files/zikosirefoteporodamim.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 3

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_off000060fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FC 5400 bytes
SHA-256: 592d3bb6397c52308de3ccce9946f6925a6741bb49d01b8efd1360b94a52fb4e
font_01_sfnt_off00007327.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7327 11136 bytes
SHA-256: 1c6342951c292d1c27422cd46d670459089c685672a6cf4bf4a6a98b97c6129f

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