Malicious PDF — malware analysis report

Static analysis result for SHA-256 01cf7355f6e93f96…

MALICIOUS

PDF

101.1 KB Created: 2020-08-09 14:55:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a155c45621d2f6bf413bab44d3311ef SHA-1: c340fc7187f104db847d4b91fc7ade3f56055c11 SHA-256: 01cf7355f6e93f964050473c1df4a10bc9945af9aea092e3ea8aa4b96dd28f64
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded URLs that redirect to a malicious domain, identified as a redirector for SEO-based phishing. The document body, though heavily obfuscated, contains a URL that appears to be part of this lure. The presence of numerous links to external PDFs, many hosted on Shopify, suggests an attempt to create a link farm for SEO manipulation, likely to drive traffic to malicious sites.

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=manual+de+economia+politica+nikitin+pdf In PDF document text
    • http://files.turner-mrs.com/uploads/1/3/2/6/132696598/3278026.pdfIn PDF document text
    • http://files.wilcoprevention.org/uploads/1/3/1/4/131437740/29b296.pdfIn PDF document text
    • http://muvefunef.revartmontana.com/uploads/1/3/1/4/131437363/vumuvuvapu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3580/4319/files/geez_amharic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/91522477450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6589/2245/files/89450628295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9063/2101/files/76484107005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0881/0398/files/18321640216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2484/2906/files/engineering_economic_analysis_12th_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9471/3244/files/89095952123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8688/9625/files/natoruvurom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kuzizurogepibisomagin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1808/2709/files/add_text_to_acrobat_pro_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2962/4992/files/muwogupulitexitozu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013f67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F67 4976 bytes
SHA-256: b4cd41a36fb8dc8930428bcddbe949c1ddcf6f70289c2ff8ba9d122323daf456
font_01_sfnt_off00015040.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15040 12772 bytes
SHA-256: 1b500d6336d171bad7447c2d3e800848a53704269e5c9e8c31e870ee5121e509
font_02_sfnt_off000178fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x178FB 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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