Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e0fe97fb911c580…

MALICIOUS

PDF

44.2 KB Created: 2020-08-08 17:50:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 086e0b96ef42f6b34c0080b077109d7c SHA-1: 23f865b5d5916fce926fe6a7379b4247841d60e9 SHA-256: 9e0fe97fb911c5809511d47e57f5d39dd27c4f1ff03c9df9f8358cd568ce8e73
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to the presence of links pointing to known malicious redirector infrastructure. It also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly supports the malicious verdict. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine the exact payload or user-facing 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.ru/pify?keyword=thenar+eminence+exercises+pdf In PDF document text
    • http://files.elcinepr.com/uploads/1/3/1/3/131381414/jamemusubemotafubu.pdfIn PDF document text
    • http://files.artmatterscommunitystudiogallery.com/uploads/1/3/1/0/131070771/dd3ec824.pdfIn PDF document text
    • http://files.pantoffelkinovideo.com/uploads/1/3/1/3/131378990/fafefaza.pdfIn PDF document text
    • http://files.michaelwarrenmurphy.net/uploads/1/3/1/4/131454012/regezewowif-wofenur-puvuvinaveloxi-vugim.pdfIn PDF document text
    • http://files.cleanteamprestwich.org/uploads/1/3/1/8/131871644/fezabon-vefija.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/1/0428/9835/8432/files/gidawibozifuniji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7675/4344/files/49135223027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/guwesimutetalajizobanubel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8073/5138/files/convert_to_word_using_adobe_pro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4911/5029/files/kipugasujat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6911/2474/files/multivariate_statistical_analysis_a_conceptual_introduction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1438/8888/files/8732665142.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/20116177671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6749/0975/files/gudopazefovumovovuzoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0154/4863/files/dafokopexawafenezojomanul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4233/9992/files/72781440890.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005eca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECA 6676 bytes
SHA-256: 8c7d19c5f97f84c488b30f3d1e2415ab561a2bff7dbc97f4405e82db792a7af7
font_01_sfnt_off00006fa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA0 5380 bytes
SHA-256: cd4eeacd395cc013bef19a9aa1151c53d501958f5f4bf48a5cdbd1a5b4384cb6
font_02_sfnt_off000081c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81C4 9884 bytes
SHA-256: c071c7c7ca7198fbe6dc8fe98b595dda04638f3d564fc223c0d81079766d0bb2