Malicious PDF — malware analysis report

Static analysis result for SHA-256 9220acd1ebafdbf6…

MALICIOUS

PDF

37.0 KB Created: 2020-08-25 05:56:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 32f611d5156533c297947114a589d49c SHA-1: f4328304651e48899097760591e182e6cee79369 SHA-256: 9220acd1ebafdbf6d4582e48179cd48cb75745362a5e4796ca1ead9bdff9ba09
194 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by an ML classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs pointing to external PDF files. The primary malicious URL identified is https://ttraff.com/pify?keyword=black+mambazo+hello+my+baby, which likely serves as a gateway to 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.com/pify?keyword=black+mambazo+hello+my+baby In PDF document text
    • http://files.jlwclassroom.com/uploads/1/3/1/0/131070938/saluzaluka.pdfIn PDF document text
    • http://files.emilycrawfordsoprano.com/uploads/1/3/1/4/131453036/7a88f62d9db.pdfIn PDF document text
    • http://files.mesalegria.com/uploads/1/3/1/4/131438397/naruralatedogep.pdfIn PDF document text
    • http://bujaga.clevelanddogtrainers.com/uploads/1/3/1/8/131860479/f341eed54c106dd.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/89377355024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3543/2859/files/nedurobudabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/1160/9500/files/c_select_case.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3770/4867/files/7692547602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/zosolawekika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5121/9104/files/rumusewovuguwojinak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0999/0043/files/koripateliwurevota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1674/1286/files/xuturi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1885060089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/lawesixozuganajeje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0714/7166/files/23531880335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9923/4203/files/nutritional_information_tomato_soup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4620/5602/files/bexuxobonepitop.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 3

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_off000052e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52E9 5168 bytes
SHA-256: c9348b5be7ec07950c5b8bbac519b7a12a6ac9a5acaef361943e615bd7a325a7
font_01_sfnt_off00006477.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6477 10016 bytes
SHA-256: 8f7acfc83d25392f5d3199723c1279f646f9dc8e9cf2f4615866599a197e4d5a

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