Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e15a2d9b238dc35…

MALICIOUS

PDF

53.2 KB Created: 2020-08-04 21:03:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da366d5a4bb7887bee58a1620c7eec51 SHA-1: c0a935a19203122b37319b88fb101d0ff55e3759 SHA-256: 5e15a2d9b238dc356c654ac141ef5ad64a9419174c7a8c1446bd080dfc4d420f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous embedded links, many pointing to Shopify domains hosting other PDFs, and a primary link to a redirector at 'ttraff.com'. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector suggests the document is designed to lead users to malicious content, likely for phishing or malware delivery. No scripts were extracted, but the link farm and redirector are sufficient indicators of malicious intent.

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=2020+south+african+calendar+pdf In PDF document text
    • http://files.northwoodsgroomingco.com/uploads/1/3/0/8/130813054/romodal_lekotug.pdfIn PDF document text
    • http://files.dbworldphoto.com/uploads/1/3/2/6/132696210/kolokavujexu.pdfIn PDF document text
    • http://files.voterodcasey.com/uploads/1/3/0/8/130814070/fotavadeletetov.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7881/1810/files/xumegofadowotevadatifusaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8483/1125/files/17104726109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6681/8721/files/lojevape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8144/9124/files/kalevavufopejimaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0896/6306/files/lawudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2754/5757/files/99013949857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kerikelamizefebimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2030/3006/files/wobuviruxuremopege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2525/3023/files/73150072838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9302/3133/files/16855946748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3823/5031/files/movunozisusadosobeboxof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0781/8398/files/amd_hd_audio_device_drivers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5920/8604/files/banyans_surf_report.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005eb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB1 5304 bytes
SHA-256: 3c9ae5586c9fede1f38b31a38990c33623f144ecb7646e85db7a90f484de68b0
font_01_sfnt_off0000709d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x709D 15156 bytes
SHA-256: 23a99ca71671456fc1e95b646f79300da46f10f02df3579739d670adb9f9308a
font_02_sfnt_off0000a08b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA08B 16920 bytes
SHA-256: 4e27c967d3af9b71d538c389a7435337d74fae44084ff8c77e3f684c0a5c526b
font_03_sfnt_off0000b6f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6F9 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361