Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6eea1ba5e607824…

MALICIOUS

PDF

42.9 KB Created: 2020-08-13 20:26:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3c7a24b8ce122d7a7236f0c70ec9b7d0 SHA-1: 82d38fa9c9822f773545c1140137fc777350d6b5 SHA-256: b6eea1ba5e6078245259016996d6dc037b298d154b9475cf02039e8a7df1cbc3
194 Risk Score

Malware Insights

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

The PDF document contains a mass external link farm, with the primary link redirecting to malicious infrastructure at `https://ttraff.cc/wb?keyword=programa%20para%20unir%20pdf%20gratis%20en%20linea`. This indicates a social engineering lure designed to trick users into visiting a potentially harmful site. The document body and metadata suggest it is masquerading as a free PDF merging tool.

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/wb?keyword=programa%20para%20unir%20pdf%20gratis%20en%20linea In PDF document text
    • http://files.christianpoetrybygeoffrey.com/uploads/1/3/0/9/130969300/6023353.pdfIn PDF document text
    • http://belimuxi.jeremysony.com/uploads/1/3/1/4/131408027/cb48d0409d5f3b3.pdfIn PDF document text
    • http://files.radioramadhan.scot/uploads/1/3/1/3/131378899/rekukovabamerugateso.pdfIn PDF document text
    • http://files.ckcondos.com/uploads/1/3/1/3/131383825/lopuvo-fijofuxaruko-nuburejudo-xifuwapojega.pdfIn PDF document text
    • http://files.entrustedwealth.com/uploads/1/3/0/8/130814205/difara.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/1/0433/0687/7080/files/53978683100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7608/4117/files/holy_week_2016_date.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3449/9479/files/nojixozupitus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4660/7765/files/mapokejogizogafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2107/2541/files/26062327518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3550/0439/files/82588629946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0595/8553/files/69057169045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4082/8566/files/introduction_to_computer_security_goodrich_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9090/1144/files/linked_list_c_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4275/0114/files/greenback_boogie_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5192/5155/files/67083759129.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_off0000657b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x657B 5360 bytes
SHA-256: cef4637e79b1980c8120f5940a7dc4189d4602fc22a947dff303a589264771b4
font_01_sfnt_off0000779e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x779E 11988 bytes
SHA-256: 8ad9507e7d69b1af2e49eeadf911ee39272e643f8eedbb76c85b8702854c8154

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