Malicious PDF — malware analysis report

Static analysis result for SHA-256 78efb0ffa93dff71…

MALICIOUS

PDF

45.9 KB Created: 2020-08-20 06:02:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f5653eac9318a3725c67a3be3ad17fd4 SHA-1: 0c1bac87ce621deebdaf3532fa6132e7aa76bddd SHA-256: 78efb0ffa93dff716e933e073c60c55eda89dbca4a2131979bbf4abcbc1ed6bc
194 Risk Score

Malware Insights

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

This PDF file contains numerous links designed to redirect users to malicious infrastructure, masquerading as scholarship website templates. The primary redirector URL is https://ttraff.cc/pify?keyword=scholarship+websites+templates, which is flagged as malicious. The ML classifier strongly indicates maliciousness, and the overall structure suggests a phishing or scam attempt.

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=scholarship+websites+templates In PDF document text
    • http://files.stonesglass.com/uploads/1/3/1/1/131164204/rojirosakeb_tikipadaz_xigomumu.pdfIn PDF document text
    • http://files.georgesgymllc.com/uploads/1/3/1/4/131453871/1e81e6.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/1/0438/0046/1474/files/7757693256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6635/0998/files/abiotic_and_biotic_factors_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/tim_whitlock_dm_cleaner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0441/1556/files/80773125682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4047/2214/files/3438828700.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3358/4028/files/nivasivofiminilaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5385/8472/files/mufegubuwoxinikuxokodub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2585/8723/files/bukififodusazapinomimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/fupapujojojewanokirupub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1327/4780/files/vaxojixetisug.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 1

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007409.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7409 5508 bytes
SHA-256: 1b7bc82d361983dd2bdc123a274fc8565ca1926e19196dc57dcbb1bb353f2b26
font_01_sfnt_off000086a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86A4 10556 bytes
SHA-256: 297c536b8608f0527790c69940b804b60f89f1df3fb1524bd7c961409260d1fd

Open this report in the interactive analyzer, or submit your own file for analysis.