Malicious PDF — malware analysis report

Static analysis result for SHA-256 e18f4a8aa23eb9c8…

MALICIOUS

PDF

45.9 KB Created: 2020-08-21 07:02:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 30dda8fcdba3dce0cc318189128123a5 SHA-1: be3ab12c444f3246bfcf7f2740becb77d299abdd SHA-256: e18f4a8aa23eb9c8a8744829e8caea12b3a9751aad07f79ecb016b4185491840
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.com/pify?keyword=cessna+210+p+performance as malicious. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many pointing to cdn.shopify.com, suggesting an attempt to obscure the malicious destination or create a link farm. No scripts were extracted, but the presence of malicious redirector links strongly suggests a phishing or malware delivery attempt.

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=cessna+210+p+performance In PDF document text
    • http://zefeli.maggiemcmuffin.com/uploads/1/3/1/8/131856005/2809710.pdfIn PDF document text
    • http://kurabobu.lavidspanish.com/uploads/1/3/0/7/130739573/surabejesi_vivokagebuzor_vizuvu_kukinopi.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/1/0438/4948/2400/files/67013596737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7595/3049/files/sapphire_plugin_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9228/6363/files/simewajewinapukize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1461/7250/files/jump_van_halen_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5636/4709/files/advanced_excel_2020_vba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38743570217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34597476450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8105/6931/files/rewiziwapuzejerina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5006/6339/files/fevem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9911/2099/files/sizalizomokafug.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
🗂 Part of campaign: polesworthpoetrytrail.org 3 samples

Related samples 1

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_off00007523.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7523 5360 bytes
SHA-256: 27bbc5c71bac3d9f07f30dafc8a04b1ad9a55b99114e56c27903c8af8757b7bc
font_01_sfnt_off00008746.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8746 10708 bytes
SHA-256: 7f512f67b90165fc7dfa7cb71db18a436810d9c0bd3971e512e61f6d228447bd

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