Malicious PDF — malware analysis report

Static analysis result for SHA-256 3090c37fd5309f46…

MALICIOUS

PDF

42.4 KB Created: 2020-08-10 06:15:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ffa82517555d4d3982db5e8492a96da0 SHA-1: bd1cb567a3bbeba5b106a4d760f961b733bd1a6a SHA-256: 3090c37fd5309f468f342c0fea4b1e1fb9df22bec850e0a0ddc9b9dfecc8addb
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the redirector heuristic. This suggests the PDF is designed to trick users into visiting malicious infrastructure, likely for further exploitation or credential harvesting.

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=wild+animals+pictures+with+names+pdf In PDF document text
    • http://files.newlightfotodesign.com/uploads/1/3/2/6/132681307/jozewu_vodagol_nudabunofivaru_besorakefobixaj.pdfIn PDF document text
    • http://files.thesolidrockshop.com/uploads/1/3/0/8/130813797/zaxisufibuxuxigusi.pdfIn PDF document text
    • http://files.positiveposturenz.com/uploads/1/3/1/4/131483550/sivaf_polatafi_zuwovil.pdfIn PDF document text
    • http://files.newbusinessaccounting.co.uk/uploads/1/3/1/4/131437380/tevaperubapub.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/1/0434/6911/1461/files/sagem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4839/3112/files/bioinformatics_algorithms_an_active_learning_approach_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dipudakafadaned.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4677/3660/files/pevoxatidorusamigema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8256/3232/files/nivelasakaduwuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2949/4936/files/download_buku_akuntansi_manajemen_rudianto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4790/3654/files/besselian_elements.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7941/7504/files/mokexezurunejurimejabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4852/2143/files/13666743405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4172/6370/files/xisoputitajizoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0242/9593/files/fomamazujijuled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8360/3876/files/2599954312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5276/8151/files/5108887867.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_off00006705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6705 5500 bytes
SHA-256: d8817a88da9af74d10ea54b300e6f19d738cc5196dcf8f6c10c9a3b84394c4cf
font_01_sfnt_off000079ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79AC 10288 bytes
SHA-256: da132abb4d1d1118c5ad2cc3f104bd57eb905171b90df6bcd6250f2b9717fa76

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