Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d1021109676ba5c…

MALICIOUS

PDF

33.8 KB Created: 2020-08-25 07:40:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 15a94c4fd2f4522d1fddb83fbd6d2cac SHA-1: e0866c4092a49db9810bd133f17dd89da5992eb7 SHA-256: 8d1021109676ba5cfdd6f844bdea2e86869f600db24736ddb8735099b25baa05
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified as a redirector for phishing or malware distribution. The document body, though obfuscated, contains text suggesting a lure related to financial reports, further supporting a phishing or scam attempt. The ML classifier strongly indicated maliciousness, and multiple heuristics flagged the redirector links.

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=icici+securities+annual+report+2019 In PDF document text
    • http://levaf.definitivearts.net/uploads/1/3/2/6/132680981/fezujijuziwaxuz-jidajepisarira-fawij-xowitamenako.pdfIn PDF document text
    • http://bunotesef.clientsviews.com/uploads/1/3/2/8/132815793/3264046.pdfIn PDF document text
    • http://vuzurupil.dragomirdesignbuild.com/uploads/1/3/0/7/130775448/3607671.pdfIn PDF document text
    • http://files.halfacrestudios.co.uk/uploads/1/3/1/3/131383924/5693121.pdfIn PDF document text
    • http://files.jessikafruchtermft.com/uploads/1/3/2/6/132695554/kifikezozivi.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/1/0433/5783/1336/files/89323024911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0119/1328/files/metal_chess_set.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/69365373989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1269/1880/files/kutiwajoxax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1855/9389/files/wejulewizawamuwewibadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/juzopuzenafososokazulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89965927340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9888/1704/files/74499369498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/6605/7881/files/graphene_oxide_sheets_synthesis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98223768302.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004766.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4766 5348 bytes
SHA-256: c8a71ce20a379fa6eb7d65e2cc32e16b882bfd8dc3bf97761997d879853b9bfc
font_01_sfnt_off00005993.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5993 9572 bytes
SHA-256: 0b79c3384232a9be644100ab451b9d028154d816de827e21c938091e12e72886

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