Malicious PDF — malware analysis report

Static analysis result for SHA-256 34bb7426a546146b…

MALICIOUS

PDF

41.3 KB Created: 2020-08-08 05:04:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e9e25ce2c826e553a85ca7d17bcf67f9 SHA-1: 46f53357e15b2fb3e96ffbeda1bd1bb7e685432d SHA-256: 34bb7426a546146be286d5902a724fa49f5d3f73bdb1e1daba3b318103a332a5
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a document about depression, aiming to trick users into clicking it. The ML classifier strongly indicates maliciousness. The embedded URLs suggest a link farm or SEO poisoning technique to distribute malicious content. No scripts were extracted, but the primary attack vector is the malicious URL.

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.cc/pify?keyword=causes+of+major+depression+pdf In PDF document text
    • http://files.communityplanningishere.org/uploads/1/3/0/7/130740069/somegazixinagolaw.pdfIn PDF document text
    • http://files.dirtydavesdetailing.com/uploads/1/3/0/8/130813755/kirifut.pdfIn PDF document text
    • http://baminum.sacredsecretskincare.org/uploads/1/3/1/6/131636725/bivepidora.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/1/0428/7630/5564/files/cerere_preschimbare_permis_expirat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1804/4063/files/zuzupufisutijewubufuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gokibaleginasesomedusuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nifafujejugafux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2204/6616/files/cassandra_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4845/9675/files/waxovelalotalut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87195604050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7208/6435/files/91128646451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6072/9758/files/11x14_frame_walmart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3550/0439/files/bible_in_tamil_and_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1137/5267/files/nomutelaramuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0681/1560/files/paradise_lost_as_an_epic.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_off00006655.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6655 5136 bytes
SHA-256: 40ee6b83a4f8dabf5a4b9b6ae94ba3cb49d3c8308ef1b2c11f7e795da50b9430
font_01_sfnt_off000077b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77B3 9464 bytes
SHA-256: 2a4b2efea86ed29de8be28a93608c1923fbd66eca060a4362ebeb2f00a425927

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