Malicious PDF — malware analysis report

Static analysis result for SHA-256 f48cd5c3596673d8…

MALICIOUS

PDF

43.6 KB Created: 2020-08-22 15:08:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 488fbf5202e72e932a0afaaebc603f24 SHA-1: 034c9fd36b3fd35b826c8c54fcca6b8fb5a68586 SHA-256: f48cd5c3596673d8044fa7025bd3b846bf64ecfd619d87ffa5688ca8c237b936
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one prominent link leading to a redirector known to host malicious content. The document body, though heavily obfuscated, contains text related to financial calculations and the malicious URL. This suggests a phishing attempt to redirect users to potentially harmful sites under the guise of a financial tool.

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=debt+ratio+calculator+balance+sheet In PDF document text
    • http://xafamo.stjohnsoakland.org/uploads/1/3/1/4/131407995/tofexenolivid-kuwujudiribasu.pdfIn PDF document text
    • http://files.coloradoriverstories.org/uploads/1/3/1/3/131398507/4701041.pdfIn PDF document text
    • http://files.finneranmuzzey.com/uploads/1/3/0/8/130874120/2830512.pdfIn PDF document text
    • http://palos.gmfseminole.com/uploads/1/3/0/8/130813592/tusap.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/1/0434/5564/3813/files/bodolupoturozelomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6361/4369/files/fosevufuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3644/6613/files/reduce_file_size_adobe_reader_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6657/2443/files/kiwado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0808/9509/files/kasonafozerisutojobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1895/2610/files/73696549199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6055/2085/files/wuzabegivegekupomuvafeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1389/7368/files/classic_cougar_forum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7515/7670/files/biological_molecules_questions_and_answers.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 2

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_off00006c69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C69 5024 bytes
SHA-256: 92cc50242889fa123dcf0ae294a33a27b12b726f7cd71cfe980cd29cf6eacacf
font_01_sfnt_off00007d70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D70 10676 bytes
SHA-256: dce1ae8eeac34b903b2a143be03267b8149a05a6f37edc21c4f78bc1200b2390

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