Malicious PDF — malware analysis report

Static analysis result for SHA-256 6de1f51d94050249…

MALICIOUS

PDF

40.1 KB Created: 2020-08-07 08:29:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 63f2721866f5ce8197d47f2bb2043a29 SHA-1: 631095a77c544729cf3afffd8435fc3d26738133 SHA-256: 6de1f51d940502492200d5facfe9600b9327d4a484900dde1be54cbcbc1e4fe3
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, indicating a link farm or phishing lure. The primary malicious redirector URL is https://ttraff.cc/pify?keyword=ankylosing+spondylitis+yoga+pdf, which is also present in the document body. This suggests the document's purpose is to drive traffic to malicious infrastructure, likely for phishing or malware distribution.

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=ankylosing+spondylitis+yoga+pdf In PDF document text
    • http://files.hillneuroslp.com/uploads/1/3/0/7/130775432/41edeef4328d.pdfIn PDF document text
    • http://files.titopools.com/uploads/1/3/0/7/130738803/492ca05eb92e8.pdfIn PDF document text
    • http://files.cameroncarpenterdesign.com/uploads/1/3/2/6/132695278/5272073.pdfIn PDF document text
    • http://files.countryweddingsatcrookedriverfarm.com/uploads/1/3/0/8/130814531/9903601.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/1/0430/0813/1233/files/balance_sheet_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7736/0029/files/73713392744.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5479/1832/files/pdf_file_resize_1_mb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4754/1146/files/26635433802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/adjetivos_em_ingles_exercicios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1882/1530/files/arap_bahar_ve_msr.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8116/9051/files/zijemovuminezipufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4388/7016/files/5353124991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0939/2285/files/58332044383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6299/2795/files/6390483808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1758/4285/files/79232151975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8296/3349/files/xisikepoxamefazebijav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5477/5970/files/fidasojiritowogakiperirev.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 7

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_off00005f5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5E 5268 bytes
SHA-256: bf3ad2c137de40e1e3601509483d6ff28c5163891f446b9ce528ab131328cbae
font_01_sfnt_off00007177.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7177 9964 bytes
SHA-256: 8448ed2713de2a4d64ff546253b0edae04f3ace840ca018942280a14df873f70

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