Malicious PDF — malware analysis report

Static analysis result for SHA-256 6845830c5de2cf5d…

MALICIOUS

PDF

50.8 KB Created: 2020-08-24 14:01:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0054db93c0e30cf16758b240e3dea2c3 SHA-1: 0af6d184208e11d3154fcd761035f8f8b5c7214e SHA-256: 6845830c5de2cf5d1736478dd9c4f2f323fc76bbb23e7b8ceb34063ba4a9e206
194 Risk Score

Malware Insights

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

This PDF document contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the URL https://ttraff.cc/pify?keyword=home+rental+agreement+form+pdf. The document's content and structure suggest a phishing or scam attempt, masquerading as a rental agreement form to entice clicks. No scripts were extracted, but the embedded links and heuristic firings strongly indicate malicious intent.

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=home+rental+agreement+form+pdf In PDF document text
    • http://files.esuzanne.com/uploads/1/3/1/3/131379594/wuburepenu_supekafixag_rulotagakoreted.pdfIn PDF document text
    • http://files.rightchoicesurrogacy.com/uploads/1/3/0/7/130740573/mituxax.pdfIn PDF document text
    • http://files.nicolastrings.com/uploads/1/3/1/8/131871625/gumeloxoma.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/1/0433/3748/2405/files/rokevakub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4082/3701/files/algebra_2_textbook_holt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/71882574181.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8561/0654/files/71243375044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4664/1570/files/44452303811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6673/7311/files/55491112796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1618/2166/files/76140621760.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 6

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_off00008a97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A97 5144 bytes
SHA-256: 11dec7355523b81e0d92affd8a427fc9adb8f6149edf38cb991651970df5276d
font_01_sfnt_off00009bfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BFB 10248 bytes
SHA-256: 07adc802f74a1d02f554a4b8a69480cf3eb366746cba2b04201a1cadb44083d2

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