Malicious PDF — malware analysis report

Static analysis result for SHA-256 edaad250c24074e5…

MALICIOUS

PDF

66.1 KB Created: 2020-08-24 21:43:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 99a8de5f5aba71046bf06c3f0bef5f70 SHA-1: a86a34fc90980a0859c75ec22b56245888580565 SHA-256: edaad250c24074e506f3130bd3a84495d53cf41dca074a728456dbd0c53d5291
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains embedded links, with one specifically pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=ansiedad+pdf+psiquiatria'. The document body, though heavily obfuscated, contains this URL and appears to be a lure related to 'anxiety pdf psychiatry'. The heuristic firings confirm the presence of malicious redirector links and a link farm within the PDF structure. The ML classifier also strongly indicated maliciousness.

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=ansiedad+pdf+psiquiatria In PDF document text
    • http://files.sdbvl.com/uploads/1/3/1/4/131454816/bezabuxozizuluk_guzurila_jowaluvimiji_finixinemuvaxij.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/1/0438/1720/5920/files/formal_breakfast_table_set_up.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/types_of_bandaging_techniques_red_cross.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8421/8532/files/paxuvejitikiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3349/1606/files/descriptive_writing_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/71951467666.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0358/3384/files/lakajivevatozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4677/3660/files/loxixabobijivefawujemi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7329/7814/files/konitege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0659/8040/files/all_book_writer_name.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9282/8579/files/23666834917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5122/0124/files/material_requirement_planning_journal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1396/3939/files/butterflies_are_free_play_script.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 6

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_off0000c621.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC621 5116 bytes
SHA-256: 6e9c2a9426feeb122e0b90e58d47589802afcf395ee25f028d032acaa51dc9e2
font_01_sfnt_off0000d792.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD792 10520 bytes
SHA-256: 5182ba87f18d11fb392b5fb48ef49daf82eaab7adc06f005f95717708958522c

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