Malicious PDF — malware analysis report

Static analysis result for SHA-256 d39eae0ac8e191aa…

MALICIOUS

PDF

44.8 KB Created: 2020-08-08 20:57:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 009f1617a6743a626477dc30472642d1 SHA-1: 420fe589958658e4b22375ccdd08fedbbe612395 SHA-256: d39eae0ac8e191aa78ab726d8f15d02dd93f32572e5ca756b30d443a3e2d9b0a
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external links, indicative of a link farm. The primary malicious URL identified is https://ttraff.cc/pify?keyword=signos+y+sintomas+de+anemia+megaloblastica+pdf, which likely serves as a gateway to a phishing or malware distribution site. The document body itself is largely unreadable due to encoding issues, but the presence of the URL within it suggests it's part of the lure.

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=signos+y+sintomas+de+anemia+megaloblastica+pdf In PDF document text
    • http://files.mrfitzbiology.com/uploads/1/3/0/9/130969334/pamiron_xoligimi.pdfIn PDF document text
    • http://files.waynevalleyband.com/uploads/1/3/1/6/131607544/1401719.pdfIn PDF document text
    • http://files.danssmallenginerepair.net/uploads/1/3/1/4/131454733/4128531.pdfIn PDF document text
    • http://files.morgantownfarmersmarket.org/uploads/1/3/1/4/131409017/2954723.pdfIn PDF document text
    • http://files.16th-century-arts.com/uploads/1/3/1/1/131163932/5460884.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/1/0433/7978/5886/files/memorepugalupilebajoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9954/6010/files/42751664203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6790/0061/files/kingroot_apk_5._1_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8311/1325/files/97864723115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8881/9864/files/biblia_catolica_de_jerusalen_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1701/7243/files/18752341680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9224/5666/files/ruruxikaranulefupejilad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7193/8453/files/18201721272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/auditing_and_assurance_services_7e_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52945462890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5115/5609/files/wonigepuxosesejukatode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gefoviliruvowej.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_off00006d23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D23 5724 bytes
SHA-256: 48a6fd6663b12a2fc85b23783a16ec82a32e50ac50a3b0b0988da03660fa0fbe
font_01_sfnt_off00008091.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8091 10800 bytes
SHA-256: 7b944ea38685b4f2cb0c9f70a987c6aa42e20d673dbf2a7ec9e3f586f5c4d7df

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