Malicious PDF — malware analysis report

Static analysis result for SHA-256 babab9b4c249043b…

MALICIOUS

PDF

36.2 KB Created: 2020-08-21 05:45:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52a6ffb7c70d4fed16616ab6ddd39966 SHA-1: f379bfed6abc4d8f017109c8967958c3efed3823 SHA-256: babab9b4c249043bc2444c2f2bc4f5befaff45f573e1549d3ee314773a4dd3fe
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary malicious link, https://ttraff.cc/pify?keyword=passive+voice+present+perfect+exercises+with+answers, is designed to lure users into clicking it by appearing to offer educational content. The PDF structure and the presence of numerous external links suggest a link farm or redirection tactic to distribute malicious content. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=passive+voice+present+perfect+exercises+with+answers In PDF document text
    • http://files.greenhopefinearts.org/uploads/1/3/1/3/131379443/cacad7ec.pdfIn PDF document text
    • http://files.habitatlacrosse.org/uploads/1/3/1/6/131606006/mowidibuw-dibojuzisawega.pdfIn PDF document text
    • http://gikob.barefoothoofs.com/uploads/1/3/0/9/130969723/0a32b42d2.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/1/0437/1084/1000/files/louth_cattle_market_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/6581/3666/files/97825918248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6437/8022/files/realtek_network_drivers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2795/4854/files/affairscloud_current_affairs_monthly.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7677/1224/files/riesgo_de_trabajo_concepto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8460/1752/files/nakutopanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0179/1132/files/texowej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tulajemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2651/4077/files/42443276175.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/building_management_system_schneider_electric.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9085/3541/files/58067186018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5052/3031/files/10583304518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8565/0325/files/bioethics_in_canada_weijer.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_off00004f5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F5B 5292 bytes
SHA-256: fcd693f33f100b163786d8fd2d8776bf7458904606c1ddb097669d8a5af0f7b4
font_01_sfnt_off0000616f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616F 9924 bytes
SHA-256: c5cd72a875a87cb070c6ce7c667aeccb19c12c0f943c92dbfc5d3ddf11eb4a83

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