Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f61a6350a1fe8fa…

MALICIOUS

PDF

43.5 KB Created: 2020-08-03 12:54:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b0d4dff1fc12f0305bc1fc2d9df56bec SHA-1: 793759a11234a69e0fd92dc75ae1dcabd62f7671 SHA-256: 7f61a6350a1fe8fa91b3729d2c88fb291382c8d00087e39d4b0fccfac14393aa
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link disguised as information about cancer treatment, which redirects to a malicious URL hosted on ttraff.cc. This suggests a phishing or scam attempt, likely delivered as an attachment. The presence of numerous links to external PDFs, many of which are benign, indicates a link farm used to obscure the malicious redirector.

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=tratamiento+del+cancer+de+cuello+uterino+pdf In PDF document text
    • http://files.ferme-luciole-farm.ca/uploads/1/3/1/6/131606392/tefopok-bagidimevafo-wedumofi-lavizegonuxo.pdfIn PDF document text
    • http://files.topstonecanada.com/uploads/1/3/1/0/131069886/tinedaxilideka-meruvofakufeb-gidatuwebexavel.pdfIn PDF document text
    • http://files.akiyunlee.com/uploads/1/3/1/1/131164488/026d23b.pdfIn PDF document text
    • http://files.sfluxedwellings.com/uploads/1/3/0/9/130969826/simuvapuv.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/1/0438/4204/4066/files/rufotuti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/is_selection_sort_stable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5689/3847/files/one_piece_subbed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8644/6746/files/boxofukedenufogumusobit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5602/9093/files/62182669520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0721/2694/files/89725286452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vevisip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0012/6880/files/34603218907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/50349311284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5654/6467/files/28423374224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7547/7405/files/58026244143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0668/8412/files/power_advanced_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0575/0946/files/dsc_pc5010_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4181/4693/files/97053830997.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
    • https://medlineplus.gov/spanish/cervicalcancer.htmlIn 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_off00006ae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE3 5072 bytes
SHA-256: c72102b7eb0a4785bfa3270dd2b5737a114b45d3128bd4ebbbf91b437d9f000e
font_01_sfnt_off00007c0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C0D 10740 bytes
SHA-256: c2694b851f9bf9286a99cbcaccd42438fb6048d012e8981362fb7401bd11a043

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