Malicious PDF — malware analysis report

Static analysis result for SHA-256 de024da545fb7af2…

MALICIOUS

PDF

39.3 KB Created: 2020-08-07 01:14:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57ebf8f11087890868fea2655380a31b SHA-1: ef67a658a270b97073fa248591dcd48adc140659 SHA-256: de024da545fb7af2eaeaafdb42f2604efe96404a163a14b95de07657eb336342
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=scope+of+variables+in+java+pdf'. Another heuristic indicates a link farm structure, with many links pointing to Shopify domains, likely for SEO manipulation. The document body, though heavily obfuscated, contains the same URL and topic as the malicious link, suggesting a lure to a malicious site disguised as a technical document.

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=scope+of+variables+in+java+pdf In PDF document text
    • http://wikifutuv.lifeisforlivingshow.co.uk/uploads/1/3/1/4/131438177/jumorepijekodoni.pdfIn PDF document text
    • http://files.powerwindowparts.net/uploads/1/3/1/4/131453018/f35a710f81e.pdfIn PDF document text
    • http://files.koshishpanindia.com/uploads/1/3/1/3/131379296/kirurumateka.pdfIn PDF document text
    • http://files.costacalidapropertybroker.com/uploads/1/3/0/8/130874126/2374865.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/1/0430/0288/8351/files/romaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5063/0297/files/23209405092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48695811849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6626/9597/files/16056054540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6448/3240/files/19214092414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8575/8617/files/briggs_and_stratton_5hp_engine_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/sopixize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4495/3509/files/27969942710.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3727/7855/files/esophageal_candidiasis_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8387/3942/files/gidabumusosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8494/6333/files/79619900903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4138/0759/files/57645260986.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 7

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_off00005b0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B0E 5528 bytes
SHA-256: b2c05628763d16bb4f263bde81e8ab887f096cc9894d4753f1513172484825a7
font_01_sfnt_off00006df1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF1 10296 bytes
SHA-256: aeef6b598e906bad717b8d612b4c232dfdbb2e97d8fb756dbc62107f519aa48c

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