Malicious PDF — malware analysis report

Static analysis result for SHA-256 26d3e5f9be96432e…

MALICIOUS

PDF

43.9 KB Created: 2020-08-07 05:03:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 078af09da6f50d338081730a7d822434 SHA-1: 66ee219ed4ec11855242ceeb7cda1455730100eb SHA-256: 26d3e5f9be96432e6fb6677ef4e3a79108dac44aa4a8401fd6df573687335122
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify, and one critical link redirects to a known malicious infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=agriculture+class+10+cbse+pdf', indicating a lure to a malicious redirector. The ML classifier also strongly flagged this PDF as malicious.

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.ru/pify?keyword=agriculture+class+10+cbse+pdf In PDF document text
    • http://files.grundmeyerleadersearch.com/uploads/1/3/1/6/131636990/sifixoj_jutixepipi_bevasagipaxuja_sivosukisozi.pdfIn PDF document text
    • http://files.kimklabe.com/uploads/1/3/0/7/130776277/xamefozapixaja_wazubunizusaj_wosigirajo.pdfIn PDF document text
    • http://files.restellsaroaming.com/uploads/1/3/1/3/131383825/vifakokunasita.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/1/0428/8564/4454/files/bemasirajigebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3595/9191/files/24525679909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5775/0951/files/99044399208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/55240551561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9749/6488/files/thyroid_nodules_ultrasound.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4082/3706/files/18537852838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8488/2844/files/xaxopek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8896/0919/files/devipuwudojil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4257/0401/files/calculus_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5480/0797/files/pulijorabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1471/5549/files/muvawewomix.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006023.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6023 5312 bytes
SHA-256: ea699d08ae278db36969d178668564ac1230ca3fac9cd39e65f70186d167b9fc
font_01_sfnt_off00007241.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7241 10096 bytes
SHA-256: 4b9fce4379cee891a09a12a546888fe6d4377635c2cfa1ac17b8cd51a6ecc75d
font_02_sfnt_off000094d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94D7 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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