Malicious PDF — malware analysis report

Static analysis result for SHA-256 44d42b23f42014d5…

MALICIOUS

PDF

40.8 KB Created: 2020-08-24 07:43:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 822c88439b9c040511ca820c6b829188 SHA-1: d299ca9bea129697124802b122e0bd74dc553dc2 SHA-256: 44d42b23f42014d5807e2aa083ef1a5cfc9f5aca8802cbd9f2db51b93cbfc56e
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body text, though heavily obfuscated, contains keywords related to Android app downloads, suggesting a lure. The primary malicious URL is ttraff.ru, which is used to redirect users to potentially harmful content, likely a phishing page or malware download.

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/pify?keyword=android+p+google+play+services+apk In PDF document text
    • http://dulujoguj.udaratherapy.com/uploads/1/3/1/6/131637309/85f80f19e3c5.pdfIn PDF document text
    • http://satan.makingscentsofsoy.com/uploads/1/3/1/3/131384240/3764252.pdfIn PDF document text
    • http://files.michellentherapy.com/uploads/1/3/1/4/131407901/6743438.pdfIn PDF document text
    • http://mabek.1stusinfantry.com/uploads/1/3/2/6/132695569/limuzisununovaso.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/1/0430/3667/2162/files/vodofevisusisesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1551/1968/files/1996_mercury_sable_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2553/6936/files/ps_vita_ftp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6653/0728/files/derosikoriguri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6749/7880/files/40028387725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2177/7570/files/759083210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1576/5153/files/16701610187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0781/8398/files/puguginu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2335/8358/files/51254754522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8268/6367/files/supply_chain_management_strategy_planning_and_operation_chopra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/2109/9162/files/sepsetentas_libros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4885/2904/files/libro_de_biomagnetismo_medico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6533/5208/files/vulosow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7465/0261/files/89128435285.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 5

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_off00005ffd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFD 5456 bytes
SHA-256: 369ce1523237e8f4132dfdbde3ab9f664bb0fbfa7ddd5b7ddd6710b49679fa5e
font_01_sfnt_off000072a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72A1 10396 bytes
SHA-256: 33da4b875437a998053e72fc500e9af265839398f5396381561bed723a2b4d19

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