Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5254101922d983c…

MALICIOUS

PDF

42.8 KB Created: 2020-08-09 10:39:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: afaea7e6bb5bc340f05851e0d103e674 SHA-1: 45744a5e5ba1b39fe1790ce1736822bedf25f3b2 SHA-256: c5254101922d983cd72dc55a71a03373d7626b665331bd104502b3de7075be4b
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is presented in the document body, disguised as a link to a food quality evaluation PDF. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on Shopify. The ML classifier strongly indicates maliciousness. The primary attack vector appears to be social engineering via a deceptive document, leading to a malicious redirect.

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=sensory+evaluation+of+food+quality+pdf In PDF document text
    • http://files.jamesonbrown.com/uploads/1/3/1/4/131438453/jejezadomoko.pdfIn PDF document text
    • http://files.ivorytreeweddings.com/uploads/1/3/1/3/131380845/3411414.pdfIn PDF document text
    • http://files.ovsassociation.com/uploads/1/3/0/8/130813796/jigoge.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/1/0431/4634/6658/files/sintron_amann_girrbach_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2194/3463/files/napa_battery_charger_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8026/0511/files/pokemon_white_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4104/7206/files/nudipugijetizukud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1165/3282/files/how_to_change_to_word_document_on_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/65230128835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riwemabosemuridaredexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7685/1614/files/autosomal_recessive_disorders.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3376/3746/files/cleric_spells_p99.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3983/4780/files/free_medical_books_download_in_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3237/8517/files/ejercicios_mediatriz_y_bisectriz_5o_primaria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9714/6019/files/rafebenixupajugirobolalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1222/6200/files/liste_des_aliments_sans_gluten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8778/2297/files/86_nissan_pickup.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006995.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6995 5428 bytes
SHA-256: 141d931b0507be57d97df113b77bab6414fcfc03cd1e6f3719812fe5557632ec
font_01_sfnt_off00007c21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C21 9876 bytes
SHA-256: 028100c66d694da768693b57ce28d6e370ab2c5be9986a904bb5456ed85993e4