Malicious PDF — malware analysis report

Static analysis result for SHA-256 03bdd37adfb16b23…

MALICIOUS

PDF

40.2 KB Created: 2020-08-02 16:50:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d40b747bdacf77ad55b86af8ce51ff69 SHA-1: 44c8058f22e6e61535bcd130fca07ca35830481b SHA-256: 03bdd37adfb16b23a8b21965758df62b48465b8c501b518167ebf137003279da
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that lead to a redirector, which is a common tactic for phishing and malware distribution. The document body, though partially corrupted, suggests a lure related to driver's license acquisition. The presence of numerous external PDF links, many pointing to Shopify domains, indicates a link farm designed to manipulate search engine results for phishing purposes. The ML classifier also strongly flagged this PDF as malicious.

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.cc/wb?keyword=chestionare%20redobandire%20permis%202019%20pdf In PDF document text
    • http://files.shagwayartsbarn.com/uploads/1/3/1/6/131607010/4737319.pdfIn PDF document text
    • http://files.salentoby5.com/uploads/1/3/1/0/131071258/wanow-dofoneruratobom-lalivakiba.pdfIn PDF document text
    • http://files.cardiffbachoir.org.uk/uploads/1/3/1/3/131378968/pekir_miwuzabadex.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/1/0431/4411/8428/files/xokonigawewapit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0591/9903/files/54931477514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7105/2703/files/6899451290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3348/5727/files/gefibowaxusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1959/2099/files/lopapabusolabefudafumezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9453/9429/files/brothers_in_arms_3_sons_of_war.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/31770395219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0677/8777/files/87358629906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/81817931441.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_off00005c92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C92 5776 bytes
SHA-256: 7d4251ff20080f9efe384e7ea489820bd54aed35ae44a576c3cd5478b085797f
font_01_sfnt_off00007002.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7002 10872 bytes
SHA-256: d3d50c264ddb138e6987f3858c1e6b9d75c0aaa6a7ccdef3d97fa01488899ebc

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