Malicious PDF — malware analysis report

Static analysis result for SHA-256 433d12b6358fe5e4…

MALICIOUS

PDF

43.6 KB Created: 2020-08-10 03:32:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 97de84ca40bd603a5153f0042682c25c SHA-1: ede1111681ab543fb4ebf73cb76e6455d90c13a6 SHA-256: 433d12b6358fe5e45951e8add373ac64e9b7bb834de378273498504f35809f00
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One prominent URL, 'https://ttraff.com/pify?keyword=sujet+brevet+pondich%25C3%25A9ry+2020+fran%25C3%25A7ais+pdf', is identified as a malicious redirector. The document body, though partially corrupted, suggests a lure related to academic or exam content, likely intended to trick users into clicking the malicious links. 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=sujet+brevet+pondich%25C3%25A9ry+2020+fran%25C3%25A7ais+pdf In PDF document text
    • http://files.youniversepublishing.com/uploads/1/3/0/9/130969305/ade4182d4.pdfIn PDF document text
    • http://files.rnativephotos.com/uploads/1/3/0/7/130739028/xurutapumozaduf.pdfIn PDF document text
    • http://baxusav.lightfastdesign.com/uploads/1/3/2/7/132741334/213449135839a55.pdfIn PDF document text
    • http://files.salisburysdachurch.org/uploads/1/3/2/7/132740536/f4a5f.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/1/0433/0346/9221/files/suledigiledogunisomozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99397771733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1737/9750/files/episiotomy_care_procedure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1104/7575/files/oster_extra_large_convection_oven_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2249/0532/files/how_to_enable_cheats_kotor_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6147/6504/files/wuximabibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9280/3744/files/wadajib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0490/3067/files/dunokepopusinomobus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tavolotifejenirogamofiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6575/1192/files/tukivukikixuxuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4119/3110/files/active_and_passive_voice_worksheets_for_grade_5.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_off00005be3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE3 6292 bytes
SHA-256: 1f3d96447414d13d21bde4f053c735bb9a80f5485e1702eeb2d2f1558dfd0999
font_01_sfnt_off000070bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70BD 1956 bytes
SHA-256: 87f4dc9fc1dc24012f317389c1eb0370a9430534078bbe5b7f9ba8065666d42c
font_02_sfnt_off000079de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79DE 11532 bytes
SHA-256: 95b94366e892b65dcfc4e694f477b0135ffa578c34166734b3ef6fad6fa4f59d

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