Malicious PDF — malware analysis report

Static analysis result for SHA-256 679e396891499382…

MALICIOUS

PDF

49.3 KB Created: 2020-08-07 22:45:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9f2b62243959a1e6c9a3dd891d8c3fc2 SHA-1: 094a571e29738436255e2a3206637a0c04dfd81e SHA-256: 679e3968914993827de3c0d1f1b0563ed544952cae6a91f04a69f64251f962fc
194 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body and embedded links suggest a lure to download further malicious files, likely disguised as academic or professional documents. The presence of numerous external PDF links indicates a link farm designed to attract users through search engines.

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=sample+mba+recommendation+letter+pdf In PDF document text
    • http://files.electrikhana.org/uploads/1/3/1/4/131438823/6308948.pdfIn PDF document text
    • http://files.the-therapy-centre.com/uploads/1/3/0/7/130739060/birubuwururabila.pdfIn PDF document text
    • http://files.glambyjac.com/uploads/1/3/1/3/131379343/5922194.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5610/2565/files/lovilepipewulojoxotetep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3796/4960/files/bseb_matric_result_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9222/9787/files/95183817338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7729/5516/files/toastmasters_competent_communicator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9732/5732/files/78249319174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0133/9304/files/72979428058.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1414/4675/files/rizejimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/12217094902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1361/1421/files/5110566516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/magej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8475/0743/files/ladaz.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000755d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x755D 5152 bytes
SHA-256: 369dee79e1b0d63fbcbbe61b40dba6c3c78050939b4375c48dcdf9e49df2ea36
font_01_sfnt_off000086b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86B6 10404 bytes
SHA-256: 1ee79c47b258f51efaef6ed2d1c9c97c236d11b1e9eda8415d9cfbc6a9a51257
font_02_sfnt_off0000aa4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA4E 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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