Malicious PDF — malware analysis report

Static analysis result for SHA-256 675e95be7ccc9da0…

MALICIOUS

PDF

43.4 KB Created: 2020-08-24 18:41:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4494b15450eb318adb99e4b62d1dbde3 SHA-1: 4c6ab6fd12bd905b8c427f57530e1538bd841add SHA-256: 675e95be7ccc9da075e8bb4bb436bb387dde8209513a95b06b2063e0485a41f9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) known for malicious activity. The document body, though heavily obfuscated, contains the same redirector URL and references to downloadable PDFs, suggesting a phishing or scam lure. The ML classifier strongly indicated maliciousness, supporting the interpretation of a 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.com/pify?keyword=ost+arakawa+under+the+bridge In PDF document text
    • http://files.standrewslutherangoldcoast.com/uploads/1/3/0/9/130969356/3827539.pdfIn PDF document text
    • http://mexebag.neidrya.com/uploads/1/3/1/4/131407057/mitunile-zemij-sutuwagivib-kotenejolufaget.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/1/0433/9440/0414/files/kejidokewog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7441/1926/files/85824232530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6983/2342/files/rivog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4431/4011/files/wow_classic_mage_fast_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3330/3976/files/jaduwibeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6875/2023/files/gexamebano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3966/1981/files/24255768693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6954/7431/files/bomomikivinalubokisamegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0622/9654/files/98434466691.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_off00005f53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F53 5376 bytes
SHA-256: 8be19c64597110e650a3df6c129e4a2290065aec1172869fd1214e4e6a90e96a
font_01_sfnt_off000071a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71A3 15208 bytes
SHA-256: 383abdcd687460911bf3c4a72564990f44febf451a7af1f355f9024a8a42dd46

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