Malicious PDF — malware analysis report

Static analysis result for SHA-256 26fbb8c8dbedc8a7…

MALICIOUS

PDF

45.1 KB Created: 2020-08-05 17:14:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a2ee705b5a66af97d5f530004cd2ce81 SHA-1: 04d0b67ed42af6ebcb9e5debbab36dfd54195760 SHA-256: 26fbb8c8dbedc8a798ffd32439908264750bed1ce9c65d8b4eeec17a1a033c7f
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a link farm hosted on cdn.shopify.com, designed to redirect users to malicious infrastructure. One critical heuristic identified a link to a known malicious redirector at ttraff.com, which is likely intended to deliver a secondary payload or phish for credentials. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic, suggesting a lure related to 'character traits' and 'exercises' in English.

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.com/pify?keyword=cechy+charakteru+angielski+%25C4%2587wiczenia+pdf In PDF document text
    • http://files.morroandjasp.com/uploads/1/3/0/9/130969375/wojerodijudo.pdfIn PDF document text
    • http://files.tangerinetales.com/uploads/1/3/0/7/130740073/fafani_dabomaseganuzog_fofukovurujubi_gevujutexe.pdfIn PDF document text
    • http://files.simplycleaner.net/uploads/1/3/0/7/130738675/zanogumuxukedi_kixawubekabosid_kotixaz.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/1/0434/0213/3656/files/lezubaminewageji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0936/7454/files/89341159920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9807/0426/files/php_display_image.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5034/4352/files/dubewotuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/voludugufezuzox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42778697636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3940/7784/files/92561863143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5205/6227/files/20608155913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6529/4504/files/27644520872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/human_relations_in_organizations_10th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1097/3083/files/wimusifuvalefogovudibabov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0250/2048/files/escala_de_alvarado_modificada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1133/2503/files/taniborasoxixovekurivav.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_off0000647d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647D 5768 bytes
SHA-256: e9856162f01865abe1744ae639ee8622cc94151a27d51cdd0fdc93024825501c
font_01_sfnt_off00007801.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7801 14776 bytes
SHA-256: 18c6cd2472504718b7a41f51a42b36e9a587aa438d9dd8a96978c3672292c464

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