Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f02599aff799cc4…

MALICIOUS

PDF

51.9 KB Created: 2020-08-08 18:50:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60b6addf1f0f797dbc7cd4eafc199a51 SHA-1: f4c10a12473d0d69449941ef4269271e845a6d6a SHA-256: 4f02599aff799cc4f482e93e22fe02f4753e37be737b0808d38848a669991812
202 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'pdf download' and a URL that is part of a redirector chain. The PDF_SEO_LINK_FARM heuristic suggests the PDF is part of a larger link farm designed to attract traffic. The SE_INVOICE_LURE heuristic further supports the idea that the document is designed to trick the user into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=small+steps+pdf+download In PDF document text
    • http://jagefefer.alliancepetcare.ca/uploads/1/3/1/6/131637316/1079899.pdfIn PDF document text
    • http://files.yfolajimi.com/uploads/1/3/0/9/130969731/3431707.pdfIn PDF document text
    • http://files.rkspeech.com/uploads/1/3/1/4/131438249/9075954.pdfIn PDF document text
    • http://files.livingwordhouma.com/uploads/1/3/0/7/130738825/gosizag.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/1/0432/2826/6654/files/40528541011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7223/3376/files/80647031686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7173/2889/files/gevavofemobitofar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8800/2710/files/63007201532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1868/8424/files/51807097980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5954/3192/files/pozunoruvov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8552/1311/files/jomositudab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2990/2998/files/52902171125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3237/0584/files/munipapofaxamobipamapofuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8683/0998/files/gisuvaboniruv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7505/2454/files/fisirefenulokejatitemetak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6635/2028/files/sokuzewusilasapiti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4089/7189/files/analytic_function_download.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008c85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C85 5288 bytes
SHA-256: 72dd318413abb0a1b0d5ae0ec13a828e7cc9c0380c69bb150cf2fe47113ccde0
font_01_sfnt_off00009e81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E81 10476 bytes
SHA-256: 0725926bf459f6cf1a3de459f0676d91d601fd0d58ffd7cdbc18c98618a72d41

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