Malicious PDF — malware analysis report

Static analysis result for SHA-256 75d1949b783c9720…

MALICIOUS

PDF

101.4 KB Created: 2020-08-06 01:32:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e2d9991226e6d3667ca8830bddec8b3 SHA-1: 80ebf50e804876b65d965da06b6b7e67d13d7c4b SHA-256: 75d1949b783c97205977258b9205511fab75a9cb0273cb984888ee83c5328a1b
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, disguised as scholarship application examples. This is supported by multiple heuristics indicating malicious redirector links and SEO link farming. The embedded URL in the document body, 'https://ttraff.cc/pify?keyword=personal+statement+for+scholarship+application+examples+pdf', is a primary indicator of this phishing 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=personal+statement+for+scholarship+application+examples+pdf In PDF document text
    • http://files.ox-fest.org/uploads/1/3/1/3/131398367/bozoku_rofamaz.pdfIn PDF document text
    • http://files.aaronhunttheatre.com/uploads/1/3/1/3/131384573/xirigi.pdfIn PDF document text
    • http://files.homelumberinc.com/uploads/1/3/0/9/130969633/2317922.pdfIn PDF document text
    • http://files.understandingfantasybaseball.com/uploads/1/3/0/7/130775448/227ae79f2b.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/1/0427/5470/3526/files/juganixunokomoponimebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7201/8845/files/demurikasujizode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1992/6679/files/bobudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2429/3796/files/kidokotojaberovunuvafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/ropovezupisijuvos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3318/8762/files/warosunupasuwulevezade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0414/7350/files/3451362112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2465/4241/files/xuvukakakuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/xadezumoxutenidodevelaves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8977/2190/files/doxalakusoxoweka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6749/7884/files/xafalejonudipajadusos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44603331863.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_off00015092.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15092 5464 bytes
SHA-256: 7ff249978c3c71af873bcd6e8f3ac2ec452ed16c4a8e4bdaa836583716c634e1
font_01_sfnt_off00016308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16308 10668 bytes
SHA-256: cb760cece434b77087a439c7f12e91e89594a165ae13361d8e536cf012842d3a