Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ecf0ef569f9b180…

MALICIOUS

PDF

54.7 KB Created: 2020-09-16 13:45:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0098f8882d619458953b631f6d8b7cf1 SHA-1: fa72528023173cc930aa27dac499b110fcd93861 SHA-256: 3ecf0ef569f9b180397e5bcb5c3d9873daf66d97bdaf9419d48dd59668bdad3b
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The primary malicious URL identified is https://ttraff.ru/wix?keyword=star+girl+christmas, which is likely used to lure victims. The document body contains numerous embedded URLs, many pointing to shopify.com, but the critical heuristic specifically calls out the ttraff.ru redirector as malicious. No scripts were extracted, but the structure suggests a delivery mechanism for further malicious content.

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/wix?keyword=star+girl+christmas In PDF document text
    • http://files.admiredbuilders.com/uploads/1/3/1/4/131453706/numidalatataf_nopudap_bivedo.pdfIn PDF document text
    • http://kidozulo.carolineuahn.com/uploads/1/3/0/7/130775934/tufiw.pdfIn PDF document text
    • http://jawodot.tulipcityunited.com/uploads/1/3/1/4/131407424/wiwujukel.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/1/0431/5086/8646/files/43831908617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0276/4184/files/floodplain_risk_management_guideline_oeh_2007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8843/7655/files/depreciation_schedule_template_rental_property.pdfIn PDF document text
    • https://53f3a2f0-dd75-466f-a78e-e155862cd52d.filesusr.com/ugd/f08e01_328b91c2448e4abc88b32fcbd6221717.pdf?index=trueIn PDF document text
    • https://42c96d3b-411e-4100-a0cc-3e42c25e3a09.filesusr.com/ugd/154db6_20c8913494244b0d9413fc98e1a82726.pdf?index=trueIn PDF document text
    • https://8948e7a1-a49f-4671-b059-146ccb542f77.filesusr.com/ugd/33ab24_7356a513594344cb9bc3490939db6177.pdf?index=trueIn PDF document text
    • https://6dc21e1d-8582-41ee-a6f9-c71b0899613c.filesusr.com/ugd/2994dd_1b875335da634709a43d17a81becfb4b.pdf?index=trueIn PDF document text
    • https://644741c7-10c1-4c23-be3f-84ce93b5938b.filesusr.com/ugd/227d0f_d04c91705cf94f2993f3080df87512a0.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6041/0021/files/ncert_class_11_biology_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2603/9463/files/amended_motor_vehicles_act.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0056/0805/files/30498968141.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/dolifeguxofubifimix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2658/6527/files/biblia_de_estudio_reina_valera_en.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ad4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD4 5316 bytes
SHA-256: e49fbe1772053031f158b533c06bcdbfa35d3736e25f3034ef121d04af75a858
font_01_sfnt_off00007caf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CAF 4868 bytes
SHA-256: 54ce2b676a523dce9a0dc2fbafb3a0b20f0e5223d45d03720c1eb32af61f8f8f
font_02_sfnt_off00008ea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EA0 13096 bytes
SHA-256: 7c771081052a305baf1ab51e72f971177e785e7abf7ac1fe1ae3fdde9df03400
font_03_sfnt_off0000b7db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7DB 16164 bytes
SHA-256: 967d89e51290aceb8fea09c2f9e0c707663cecf1a9b826b2128538f448fdbc28

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