Malicious PDF — malware analysis report

Static analysis result for SHA-256 be061b260596981c…

MALICIOUS

PDF

80.5 KB Created: 2020-08-06 17:10:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ad917a86de00c4c1f896e4067f172e56 SHA-1: b6f7ea777f6f84a94bc0e70a00c45ad081aa7ad2 SHA-256: be061b260596981ccfd22c4e5e36b8a7c2463c6e9a8785d0c0a4e600a32ac2fb
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one heuristic specifically identifying a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Enfermedades metabolismo de carbohidratos pdf' and the wkhtmltopdf tool, suggesting a lure for users searching for specific PDF content. The presence of numerous external PDF links, many pointing to Shopify, indicates a link farm strategy to obscure the malicious redirector.

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=enfermedades+metabolismo+de+carbohidratos+pdf In PDF document text
    • http://files.catherinebliss.com/uploads/1/3/0/9/130969160/rekaloniw_tizapevurok.pdfIn PDF document text
    • http://files.dibbacityguide.com/uploads/1/3/1/6/131606674/jiziwagukizob.pdfIn PDF document text
    • http://files.genarospizza.com/uploads/1/3/0/7/130775859/6e671e4b7e7ca14.pdfIn PDF document text
    • http://files.nickmosca.com/uploads/1/3/0/9/130969418/misibopo-kidefinugilefa.pdfIn PDF document text
    • http://files.e-s-network.com/uploads/1/3/0/9/130969576/xegoxuvovo-xiwiguvatusuwa.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/1/0432/3095/3630/files/buzafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3347/5737/files/kubifisidajoxarizidibomen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/sozarutejisiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9999/6839/files/make_phone_number_clickable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0107/7142/files/49040244272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6642/4470/files/chemical_bonding_test_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/dudibaduxidonof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7641/8720/files/sql_nested_query.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0936/7461/files/76857101112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8688/9625/files/13358508179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2535/7210/files/baretifilubowasiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/lojur.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_off0000fdb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDB3 5492 bytes
SHA-256: 74961ac4a48c75f30e0ba6ae1ff5389f59055bf28597a182c472eed557f9a27c
font_01_sfnt_off0001102e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1102E 11100 bytes
SHA-256: 68c56ca801ccceab67c0b528e0be01334d9f0acedd71ef415941231f9b5ee912

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