Malicious PDF — malware analysis report

Static analysis result for SHA-256 aea93eda6526da90…

MALICIOUS

PDF

34.1 KB Created: 2020-08-18 20:24:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4a22d23bd19e04c7fdf22fe28d4fa2cd SHA-1: df4c5c74b5ce924f535147af2cbf24c43138c2dd SHA-256: aea93eda6526da90b36b6f5438b0fb48a3b034406286e3c125e6b7b3794bfa93
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body text, though partially corrupted, suggests a lure related to 'Cornell notes template goodnotes'. The primary malicious URL identified is https://ttraff.cc/pify?keyword=cornell+notes+template+goodnotes, which likely leads to further malicious content. The file's structure and link farm indicate 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.cc/pify?keyword=cornell+notes+template+goodnotes In PDF document text
    • http://files.halonades.com/uploads/1/3/1/4/131408209/lumezinixumuxu.pdfIn PDF document text
    • http://files.hotgirlluxuries.com/uploads/1/3/1/3/131380915/bf0196666.pdfIn PDF document text
    • http://files.uaeeastcoast.com/uploads/1/3/1/6/131637255/6884485.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/1/0430/4296/3613/files/foriwubexapozumodijisoxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5670/1348/files/76443900785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6065/8330/files/peniwarun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0623/8613/files/27841879796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5625/8454/files/jee_main_chemistry_formula_sheet_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5252/9829/files/xiritulibej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0477/3031/files/ligadutofesumokoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7130/5883/files/3059828581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8959/0427/files/76315297927.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/posivurewuzejasag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6714/6397/files/mathematics_grade_7_book.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_off00004a01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A01 5184 bytes
SHA-256: ce6e0461b2e3f9081a856573c94dd4c81e3e1b3a2f5d230b7fccac02e86a5831
font_01_sfnt_off00005b7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B7F 9444 bytes
SHA-256: 33a0e953e622281a8b46e2051a2912b582945d92242d60a4afa3de09e7160fee