Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d115e90546d294d…

MALICIOUS

PDF

55.7 KB Created: 2020-08-11 23:19:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 88da4d7e62ee13a494c7ddaba004bb8c SHA-1: c45a73c71454b1ac9dc142179b71ac748b4b3c6c SHA-256: 7d115e90546d294de923f28d044f9f6477bc742609e73c1708758ad12a829d8c
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and references to PDF formats, suggesting a lure to download further content. The ML classifier also strongly indicated maliciousness.

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=acta+constitutiva+pdf+formato In PDF document text
    • http://files.meady.com/uploads/1/3/2/6/132695465/2089613.pdfIn PDF document text
    • http://kibupir.epworthumclouisville.com/uploads/1/3/1/4/131453574/veliwemoke-lasuvewovis.pdfIn PDF document text
    • http://files.agilecreators.com/uploads/1/3/0/8/130874361/dfa3e0c9c.pdfIn PDF document text
    • http://files.cedarcreekinternalmedicine.com/uploads/1/3/0/7/130739239/xuxorub-zaval-limomawakiro.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/1/0440/7921/8840/files/63061507788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6537/files/79833445990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8111/2483/files/setiperogepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6268/0984/files/donirorotezolamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4071/0562/files/strength_of_materials_multiple_choice_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7539/3944/files/modern_business_process_automation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3197/0471/files/xikabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2893/7880/files/ipomoea_aquatica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0673/7053/files/ahmadou_kourouma_les_soleils_des_indpendances.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5802/6903/files/pujopoxibakatojidireje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7993/3862/files/94787080551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0007/0307/files/92360024442.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 4

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_off000095c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95C9 5316 bytes
SHA-256: cdbe38d94a6db8f39aab0b8aa3df6a4f1674e085c73e95e218f9a12fddbc7e4a
font_01_sfnt_off0000a7c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7C9 13164 bytes
SHA-256: f85641659b4b9a085b52523c2efdc07af23a86a4f649a81b5fc7311e3491340c

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