Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffadeb734240144a…

MALICIOUS

PDF

57.6 KB Created: 2020-07-30 13:25:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60df757629d5346e98e45f64255fd40c SHA-1: c88f5d08ae705c3c572743bc09abc90ee17caede SHA-256: ffadeb734240144a31db6dadc2c599111c2a5292e293096294e7ea76343721d7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, suggests a lure related to an intelligence test. The primary attack vector appears to be directing users to malicious URLs, likely for further exploitation or credential harvesting.

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=stanford+binet+intelligence+test+pdf In PDF document text
    • http://files.notyouraveragechurchgirl.org/uploads/1/3/2/6/132695321/kedojozefurupif_zekawufugugora.pdfIn PDF document text
    • http://files.mbilder.com/uploads/1/3/1/4/131406816/1092288.pdfIn PDF document text
    • http://files.pillowstudios.com/uploads/1/3/0/8/130874205/fixisojet.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/1/0434/5397/2630/files/25728977614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/bexano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0963/7533/files/biwojilunojolisulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74535711799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2363/8426/files/zatutuletakodaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4205/4048/files/zusewopal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4300/4322/files/fanebezosogiworifaraxofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2050/9596/files/47933391513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9842/1913/files/7077349425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1574/0312/files/sesiziz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9356/5342/files/24185686267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31670740491.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_off0000a3a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3A4 5356 bytes
SHA-256: 09bd7bde7807e41269e2413c4bd673b29902da34c1a6b33aa9c8ed3c5879cbea
font_01_sfnt_off0000b5d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5D1 10284 bytes
SHA-256: bd0d8263adb29126bfd54babda632d43eca64c8039f9ea529063c19bae7ddee1

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