Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac26c4c26c7bfd43…

MALICIOUS

PDF

51.5 KB Created: 2020-08-10 02:54:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf6ba733eac58cf8162e6ceedcf27a43 SHA-1: aaeeb09a0857ccf0bdb2880228242874c70fec64 SHA-256: ac26c4c26c7bfd439fa2b2636317faa3189cfac7a8b4a60378cb50f5c6b580dd
202 Risk Score

Malware Insights

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

The PDF contains a link disguised as a free download for 'golden rules of accounting in gujarati pdf'. This link, however, redirects to a malicious domain (ttraff.com) identified as a redirector. The ML classifier strongly flagged this PDF as malicious, and heuristics indicate it's part of an SEO link farm designed for phishing, likely using a spearphishing attachment vector. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=golden+rules+of+accounting+in+gujarati+pdf In PDF document text
    • http://molovoma.academyofhirudotherapy.org/uploads/1/3/2/8/132814930/ditiso_ruxazeluxiluzem.pdfIn PDF document text
    • http://files.lexphotoscan.com/uploads/1/3/0/9/130968984/d23bb68608.pdfIn PDF document text
    • http://files.dungeonchunks.com/uploads/1/3/2/3/132303373/xapokalis-banemav-vigotixoxax.pdfIn PDF document text
    • http://files.coopercatgallery.com/uploads/1/3/2/7/132740260/puparif.pdfIn PDF document text
    • http://files.sharasahenley.com/uploads/1/3/1/4/131453355/3969234.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/1/0433/0009/4112/files/alternative_tourism_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2338/2174/files/low_cholesterol_diet_plan_spanish.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8330/0005/files/47580161424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2773/2379/files/61698786696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8233/3864/files/murumodivoxuwitaven.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3055/9390/files/xegifegomigakaxizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4620/5602/files/98628395313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5746/3964/files/8328635072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8955/9705/files/supolubusikip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6841/files/zebogururolobuze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38970143778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5440/7578/files/caracteristicas_del_materialismo_dialectico.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69F7 5432 bytes
SHA-256: f1f7180bb2af2a078704f05e882fc05558fc830f153fa7763d328e3fe15ef198
font_01_sfnt_off00007c8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8B 15248 bytes
SHA-256: cc86a3e586007e274c48e63649d80e0c938ad3e2034f9c9df54acac221128eee
font_02_sfnt_off0000abca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABCA 16120 bytes
SHA-256: 2a726e4d8e078a4a4a6a0bed67b139344cab8167eb027720faf42c08020076b2