Malicious PDF — malware analysis report

Static analysis result for SHA-256 190ed51ee1f5e809…

MALICIOUS

PDF

34.7 KB Created: 2020-10-23 19:01:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 9e6253b4572fec0d84f7b25d8d201d38 SHA-1: d0cdcd3d61357823d1032736cdac47836698fdf8 SHA-256: 190ed51ee1f5e809c5090d79d11ea61ec2549e7837e17d10adc4337e852d29b4
192 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' indicate that these links are intended to lead users to potentially harmful content. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure itself facilitates the redirection, and the presence of embedded URLs suggests an attempt to direct users to malicious sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • 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.
  • 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.link/aws?keyword=les+alphas+le+livre+du+maitre+pdf In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8628b598-eb43-4f5c-8bbf-95ae3a609d2b/80146478081.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7158714c-195f-436d-82bf-6f787f9135ff/puwukalazuvilu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb2f83f2-8a18-4474-bfce-63a5ee6ac8ba/comment_poser_un_anneau_a_un_taureau.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae7adad5-5806-4712-a4fb-3fff18e1d14e/50722689259.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b62ff29-a675-4b3e-9165-04d2f6a64b8a/53714311745.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e39d3cb-36f1-4429-83d0-8b930eaa5205/88950771882.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a07bd41-367d-42cf-916d-f9697bff238a/levoligidegolalafesara.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eaa36435-4e4b-4336-b29c-26d793ee4f6e/bugera_v22_schematic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2be06b1c-cab1-4f5a-99e6-6b606a3c3e37/88620460066.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/011c91b5-b0a4-4b12-91b3-e81257d6a05b/66428815414.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a05df84-5798-476b-affb-a3e2507158a1/strawberry_shortcake_collectors_pric.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61ec906f-e418-4361-837f-11e00f48426f/76543425412.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2720919d-3bd8-40c5-b67a-723a3b52b23b/ranajogujikipodopizoze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0e76510-2861-4b8e-98c1-436fbfd2c533/47902653470.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/49085647139.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/44410580547.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/48528149836.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/edexcel_igcse_human_biology_revision_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/reflection_refraction_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7162/6652/files/office_365_browardschools.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/kikaxijaxamesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/4517/4439/files/mikatiruxuzovagutili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4944/9632/files/soundcraft_signature_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8929/2184/files/walking_dead_road_to_survival_hack_no_human_verification.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005be1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE1 5284 bytes
SHA-256: 2734d2b2b1c03ded3bfc25d37ecad70ea3e415988123a06b184c8404cd416824
font_01_sfnt_off00006db8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB8 11184 bytes
SHA-256: 7dc25a427d38c34bc31b586ea2cd416f2bbd70e5bde14dbfe8affa2e35ca2738