Malicious PDF — malware analysis report

Static analysis result for SHA-256 ced931df2af0cbed…

MALICIOUS

PDF

39.5 KB Created: 2020-08-25 04:57:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 86693b24174e1d7160ca43f05800f20f SHA-1: 32856a54d3a0da729c7fc25f59478115952fbaae SHA-256: ced931df2af0cbed33c1098b4e10d76cd4043599f71c484cbfca1028856b59cf
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with a critical heuristic firing indicating a PDF link farm. One of the primary links, 'https://ttraff.com/pify?keyword=antivirus+para+android+online', is flagged as a known malicious redirector. The document body also contains this URL, suggesting the intent is to lure users to malicious content, likely for phishing or malware delivery.

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=antivirus+para+android+online In PDF document text
    • http://files.farmhousecandle.co/uploads/1/3/2/6/132695213/wumixib.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/1/0431/3242/0250/files/zulazugifuxuvubezujutiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7321/6412/files/vapour_absorption_air_conditioning_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6885/9303/files/nepusugomukujowukupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5992/7448/files/nekuzukidezux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3652/2149/files/clear_cache_on_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6613/7507/files/kenenajipaforiruzove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/3532/2526/files/togefuzazulonujutuzetuneb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2398/3015/files/psychiatric_interview_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7421/6351/files/knights_of_valor_trophy_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6179/6248/files/shatta_wale_ft_beyonce_already_mp4.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 1

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_off00005e5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E5B 5000 bytes
SHA-256: 1604237cfec7ef5aeb445aa487110def682a8d0e520c0d3a7b1e52c702480150
font_01_sfnt_off00006f6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F6A 9996 bytes
SHA-256: c5b97a00077fb38970d37e49a5fa31680ca4ed8d7163aff76e07224920b1987c

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