Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba7215ee8ce92d28…

MALICIOUS

PDF

54.3 KB Created: 2020-08-22 12:26:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f8ebbe0145093ea7a1a8f8b694d03bb5 SHA-1: c096afd3284f674035bf13a55b26d2805e5b6b7a SHA-256: ba7215ee8ce92d28e17f4a9d5b52d04420e8a006ce6ce9e5a5e017077ee64369
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure, specifically 'ttraff.com'. The document body also contains this URL, suggesting it's the primary lure. The presence of numerous other PDF links, many hosted on Shopify, points to a link farm strategy to obscure the malicious destination. No scripts were extracted, but the PDF structure and embedded malicious URL are sufficient indicators of a phishing or redirection attack.

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=vocals+samples+free In PDF document text
    • http://buresa.animalintuitivereading.com/uploads/1/3/1/6/131606111/ritedufe.pdfIn PDF document text
    • http://rewilul.wstcharity.com/uploads/1/3/1/6/131606295/sureme_xekoz_tufigunonoz.pdfIn PDF document text
    • http://files.rhfarmersmarket.com/uploads/1/3/1/8/131859895/4f31f9775b79c5.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/1/0444/0922/5382/files/ashokan_farewell_violin_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/administrator_duties_and_responsibilities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2583/3882/files/arkansas_vehicle_bill_of_sale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5440/7580/files/91191720558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/39530741902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6487/7471/files/nazonaripog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8083/5482/files/lorunibavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2385/8850/files/arkansas_drivers_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6246/8514/files/treatment_of_ebola_virus_disease.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A4B 6588 bytes
SHA-256: 746cda19d0a45b0d6108c63ff8192b2f88c2fff5e5937e692a7cb04b31166607
font_01_sfnt_off00006ac5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC5 5128 bytes
SHA-256: d388f1443d3ed5e86ef662438f04fb758c8928458030495773fd2f2b24d6a4ca
font_02_sfnt_off00007c13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C13 3268 bytes
SHA-256: 9c23574708d3c63f1d5f3db444c2c2acb23f834480ed2a9821e000be50a4c97f
font_03_sfnt_off00008961.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8961 14220 bytes
SHA-256: c93757e3dd3f57a7a545a69d8b641945bf92611d0690a48489b3ee70c06cc020
font_04_sfnt_off0000b5fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5FB 16336 bytes
SHA-256: 18820e64b89489c6901bdbad9637cefc87d81bb55776bf10726fbc7439458c45