Malicious PDF — malware analysis report

Static analysis result for SHA-256 25484ec4835ce78e…

MALICIOUS

PDF

44.3 KB Created: 2020-08-06 07:02:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b5ba85a93778b01d7c4956b93bd23af8 SHA-1: 82e15d0b846dd521e04012320775c7f1df925840 SHA-256: 25484ec4835ce78e68f89af78cb1676d42389084cb40503897d19c5ed0ec2a11
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body explicitly contains the URL 'https://ttraff.com/pify?keyword=creative+problem+solving+techniques+pdf', which is likely intended to lure the user into clicking it. This URL is designed to redirect to further malicious content, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The presence of numerous other links, including to Shopify domains, suggests a link farm or SEO poisoning tactic to increase visibility and clicks.

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=creative+problem+solving+techniques+pdf In PDF document text
    • http://files.sheltiesalberta.com/uploads/1/3/0/7/130739267/tumajusidibugo_gajebumufa_zujekerewo.pdfIn PDF document text
    • http://files.greysriversports.com/uploads/1/3/1/4/131452733/3888462.pdfIn PDF document text
    • http://files.sheppartonspiritualistcentre.com/uploads/1/3/2/7/132740329/4298940.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/1/0432/7879/4917/files/zuwobun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wifufokamavobopizevotug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8305/5782/files/49059516423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/76626827754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/zugotoviraxubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4619/8683/files/almost_single_advaita_kala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0744/2072/files/unity_event_manager.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0896/6301/files/vamejefekif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8511/0171/files/41521512559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/lesutisegexunuwujizifub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1663/2992/files/letasibiwuzenasunoribe.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_off00006440.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6440 5800 bytes
SHA-256: 56337622d464addeadf2fa098e8ed3fd8efa96d73f894746ad88ba8cd6deac36
font_01_sfnt_off000077ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77BA 1864 bytes
SHA-256: 1fda7262b9c322238461688d7b24ad83ee7204aef4f414443ce82fa7efbd087d
font_02_sfnt_off000080c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80C7 10364 bytes
SHA-256: cfee2b9d3310cd8d95dc4c29672a220b59d9e9df8736e682061f55d522fddc48

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