Malicious PDF — malware analysis report

Static analysis result for SHA-256 49953bccec2556a0…

MALICIOUS

PDF

40.5 KB Created: 2020-08-11 02:11:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d2f4f8c92a5d57a684127905c78b24ef SHA-1: b5a55da425eed809335d6897ab507bf1ae9d58ff SHA-256: 49953bccec2556a0d7cfae426982216f4c147088a053a071742cb52b4ac6512a
194 Risk Score

Malware Insights

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

The PDF document was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The ML classifier also strongly indicated maliciousness. The embedded links, including the primary one to 'ttraff.com', suggest a phishing or malware distribution attempt by redirecting users to potentially harmful sites.

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=exercise+of+abstract+noun+pdf In PDF document text
    • http://wafasavov.yavmagazine.com/uploads/1/3/1/1/131164250/nipoxaropatek.pdfIn PDF document text
    • http://gibivu.barnsandburleycandleco.com/uploads/1/3/1/0/131070420/kevone.pdfIn PDF document text
    • http://megakil.weekeepcompany.com/uploads/1/3/0/8/130874359/dipebo_widikomuwaso.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/1/0430/6305/0394/files/bijutejenagolevabaxor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9770/2046/files/kuxafavovawexojibuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2013/2247/files/98525237826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1307/9203/files/94400461748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0528/8352/files/42493170823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1551/9912/files/14458335690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5391/6060/files/24167886648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5756/9189/files/30586185958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9664/6556/files/fajafimujojunowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6069/6990/files/2d_gaussian_function.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1946/7932/files/77468017753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5352/9753/files/classical_mechanics_goldstein_solutions.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 2

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_off00006024.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6024 5280 bytes
SHA-256: bdfcbbed17b04f5e405d29c9205ee1537e1413f710677d2809c1aacba9d54799
font_01_sfnt_off00007222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7222 10312 bytes
SHA-256: 79d5ea527eefd79a94be21961c8a3dffba6a7406848a0879d9f2956bac5bf7e0

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