Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b027fd39ca7281d…

MALICIOUS

PDF

41.7 KB Created: 2020-08-04 17:16:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6637635d3184b47585d71a6985e30005 SHA-1: 5c931afe4723be31370857f0ce8a96f647c2ae4a SHA-256: 6b027fd39ca7281d22c3fc9a53946cf3bf93ae27395bcbab4a5e16d08c8d1699
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector infrastructure known for malicious activity. The document body, though heavily obfuscated, contains a URL that appears to be a lure for '12 principles of animation pdf'. The presence of a link farm and a redirector suggests an attempt to drive traffic to malicious sites, likely for phishing or malware distribution.

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=12%20principles%20of%20animation%20pdf In PDF document text
    • http://files.caledontreeconsultants.com/uploads/1/3/0/8/130813095/sogireferem.pdfIn PDF document text
    • http://files.arkumc.org/uploads/1/3/2/8/132815753/misusewofotopesapufa.pdfIn PDF document text
    • http://jereni.canadiancashmere.ca/uploads/1/3/0/7/130775169/negovatomo.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/1/0428/9835/8432/files/bobidaxida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5765/9547/files/17010563101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1104/6561/files/fipajawejinolofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8129/3221/files/52344626960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5221/9030/files/beverage_production.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0184/5659/files/garmin_forerunner_10_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6779/3820/files/holy_bible_in_arabic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/telikakeriwavemowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/xetulezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0763/1782/files/rizuzigopesuxifipokew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9199/2480/files/fidumezoxozisemob.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_off00006643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6643 5392 bytes
SHA-256: 0b84c66e5ccc83bc388c456b979b839e043da3ba862ec7e0ea4fad4a40076f80
font_01_sfnt_off00007885.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7885 9892 bytes
SHA-256: ad82a9351a250171287336f263a334a9146507e4f82316f355f046252c839d4e

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