Malicious PDF — malware analysis report

Static analysis result for SHA-256 03f6139699f934e0…

MALICIOUS

PDF

40.9 KB Created: 2020-08-20 14:25:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eb412898bff1d3fc466f8a20f11de473 SHA-1: 6a44add2e4f48b67167d7323832127f95ec20233 SHA-256: 03f6139699f934e0e5aae24678e2bdce8083d74f592d347637c700c5f07fbd2e
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, with a primary URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same malicious URL, suggesting an attempt to trick users into clicking it for a 'free download'. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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=kanda+bongo+man+songs+free In PDF document text
    • http://depema.wisdomofgrief.com/uploads/1/3/2/6/132683097/wabunefenaturasafo.pdfIn PDF document text
    • http://mumalo.assiniboiaartscouncil.ca/uploads/1/3/1/0/131069839/gapaf.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/1/0431/8652/0224/files/41656582850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bifezunelavezide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5814/files/detakovenosutejuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/45174671834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4448/5790/files/caballo_de_troya_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7201/1941/files/kasuleses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8063/6833/files/85086714603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0965/4436/files/samsung_ssd_magician.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6239/4008/files/banking_service_chronicle_august_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8918/0310/files/loxojenuxabezuzisuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0145/4500/files/39687018380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3770/4867/files/the_creature_from_jekyll_island_griffin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2009/1555/files/33097390081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7891/8048/files/pilokamomazututin.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 2

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_off00005265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5265 5304 bytes
SHA-256: c766431d4d3887b8032febb192f36a09f5cf92beb9b590e01efbc4ff12cb73ec
font_01_sfnt_off00006456.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6456 15504 bytes
SHA-256: d093c8fa56d8d5e0404ed99189288bb367addd581efc66cf1bcd2e0c375080e6

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