Malicious PDF — malware analysis report

Static analysis result for SHA-256 94eea82bc0e3987b…

MALICIOUS

PDF

53.3 KB Created: 2020-07-29 10:39:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57e560fc68696f598bf6d594639dc651 SHA-1: 158a7d1c8e6918c52b1a6c0e075ae5125af927f9 SHA-256: 94eea82bc0e3987ba0d783cb3cbf31618b93a71d08c23ea708ec91ce85c38685
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. This URL is presented to the user as 'interview questions on c language for freshers with answers pdf'. The file also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic. The primary malicious URL is the most critical IOC.

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.ru/pify?keyword=interview+questions+on+c+language+for+freshers+with+answers+pdf In PDF document text
    • http://files.corkscreworders.com/uploads/1/3/2/7/132712080/godunas.pdfIn PDF document text
    • http://files.yasmeenalawadi.com/uploads/1/3/0/7/130738915/wixebaku-dekoxuleka-weluz.pdfIn PDF document text
    • http://files.missourimidwivesassociation.com/uploads/1/3/2/6/132683014/fopasotuvipofamesode.pdfIn PDF document text
    • http://files.ithacaymca.com/uploads/1/3/0/7/130775375/malugewa.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/1/0433/0687/7080/files/xozujegemuzudileruzodedus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0436/2906/files/mepawexabusoxajokidum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7540/3936/files/zujuwejevufege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4918/7493/files/98068512172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3544/3875/files/girewezesipilegemeto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/dulomizezikulixelekul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9875/1641/files/88233012692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pitoparejiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6537/files/xatediwoditete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5615/1190/files/23290271019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0049/5260/files/57778531108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4163/5997/files/zuduwumisaduxazixuzav.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008bbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BBF 5516 bytes
SHA-256: e9b7f64de7c96d3152b1d45afc809bc2a4cdcb4c05fda9b7d317a7772814740d
font_01_sfnt_off00009e87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E87 12584 bytes
SHA-256: c871747b614a77dcacf56b49c9a59bff69aadf548edecaccc633a2239af4e53f

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