Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb2a331b2a6b04b9…

MALICIOUS

PDF

34.9 KB Created: 2020-08-03 10:37:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1107ccaa9ff155b6283fda6db9192e44 SHA-1: ed8c7b0cd52972a21ddd2baf76ef90fecfbccce3 SHA-256: eb2a331b2a6b04b964e201990032e60057b803514fdb27e5bf8ffcb2a94e2b37
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with the primary link identified as a malicious redirector. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL, suggesting a lure to download further malicious content disguised as a legitimate PDF. No scripts were extracted, limiting the analysis of specific execution behaviors.

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.ru/pify?keyword=statistics+david+freedman+pdf+download In PDF document text
    • http://files.edmontongreendragon.ca/uploads/1/3/0/8/130813134/vupizosila.pdfIn PDF document text
    • http://files.savetheshackguilford.com/uploads/1/3/2/6/132683017/1853547.pdfIn PDF document text
    • http://files.jeffnickell.com/uploads/1/3/1/6/131636988/d3489b29f.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/1/0432/2977/3979/files/wuromimujirenevakij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8404/5719/files/loranemogubidebum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nubizasijimowedemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6489/3345/files/jugonutunewevenezapomun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4809/0270/files/vitulerezagufomotab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8548/7525/files/tiwuzugoduzegowijokotunud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kopamidije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7651/8049/files/71174687322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3320/5655/files/12610822279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/18410569865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3885/0719/files/18414470622.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_off00004a0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A0D 5556 bytes
SHA-256: f737ba4ec2ea1c071296ec91689365f7ece781dfb22da8f9d7bfe05ed187613f
font_01_sfnt_off00005cf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF0 10004 bytes
SHA-256: 4e7a1e2dca5db38618bfa12f8aed79643d85ee333265bade10f69e43c0ce06aa

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