Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eaeb5c955d60298…

MALICIOUS

PDF

51.0 KB Created: 2020-07-30 23:13:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 28abecd95b4edb6b5b3c4bab45f0d0b4 SHA-1: 66a8e7cbb69f0be234b525b6029c637fcbd4b5b9 SHA-256: 9eaeb5c955d6029830e0b61bdb9a9dc82353ad19a22b2a9bcf9de95dd8ec0a84
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, suggests a lure related to an '8th class physical science textbook pdf'. The ML classifier strongly indicates maliciousness.

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.com/pify?keyword=8th+class+physical+science+textbook+pdf In PDF document text
    • http://files.safekidsthurstoncounty.org/uploads/1/3/2/7/132710780/1893354.pdfIn PDF document text
    • http://files.nhwf.org/uploads/1/3/0/7/130738596/2818766.pdfIn PDF document text
    • http://files.sfvdt.org/uploads/1/3/1/1/131164052/e5cd9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4977/7312/files/45933319447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4774/6710/files/jaforabawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0124/9955/files/93187504239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0605/7888/files/46772424297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7772/9432/files/1401491809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8801/1673/files/3192884566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7813/2636/files/wejefazurubumaxifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7417/4624/files/fexemavobuxikofefozibewew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0354/3715/files/81333942221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6690/9081/files/xoxokirajipojex.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007612.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7612 5408 bytes
SHA-256: e12c75140314d9fb9f06cdebf8015b06a13c70615f165acf1b5dcaa8ddc78053
font_01_sfnt_off0000886d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x886D 5600 bytes
SHA-256: f744d6fba26f820e4a443fc45911177c264a6ea2c72ea480764417b6e462b341
font_02_sfnt_off00009a7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A7A 9920 bytes
SHA-256: dac1b230d29d3e653e493ac916d915db308696ff723a46f09c02744a499980f7

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