Malicious PDF — malware analysis report

Static analysis result for SHA-256 70af689d12e4e103…

MALICIOUS

PDF

42.4 KB Created: 2020-08-09 15:37:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: db9af26c8c52432334b39e658fe721ab SHA-1: 59cbcf11e041d6c8e8fb51cd3cf39a794e5f247e SHA-256: 70af689d12e4e103b7d0f40623b1ccdf2e436ed7f2754e47666ff7252bb79bf3
194 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, including a primary link to a redirector at 'https://ttraff.com/pify?keyword=candidiasis+oral+pdf+pediatria'. This redirector is part of a link farm designed to lead users to potentially malicious content. The document's content and structure strongly suggest a phishing or scam attempt, leveraging a seemingly legitimate topic to encourage link clicks.

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=candidiasis+oral+pdf+pediatria In PDF document text
    • http://files.essentialmensclinic.com/uploads/1/3/1/4/131483020/majakizoropelakiwa.pdfIn PDF document text
    • http://zusog.bttau.com/uploads/1/3/1/3/131379246/7338202.pdfIn PDF document text
    • http://files.jesswebbart.com/uploads/1/3/2/8/132814241/zawebutorowog_mojefem_badojijidarim_fatitobematepaj.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/1/0433/6048/5541/files/83284837211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0546/8068/files/44346841858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7840/9622/files/sukopew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5590/6967/files/css_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9045/0334/files/applications_of_centrifugal_casting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0437/7763/files/91177056721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6968/6431/files/alzheimer_traitement_naturel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/5455/0440/files/carboplatin_smpc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9457/3205/files/kenmore_elite_oasis_dryer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/50833930904.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 4

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_off00006839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6839 4940 bytes
SHA-256: bfb48b5b2ad2b45375f69084aeef794d9be347930251ede5a90ebc65f68c9289
font_01_sfnt_off0000790f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x790F 10576 bytes
SHA-256: 7f37828a2263ba658eef09328bb23a27c990ba2c3a119bb59301607ec6cf3a0a

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