Malicious PDF — malware analysis report

Static analysis result for SHA-256 e315d5c3c755f22b…

MALICIOUS

PDF

43.8 KB Created: 2020-08-13 00:06:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 38987c364cb339e2803b926df2d5b47d SHA-1: 479cae7d925550859bf9d5342cce48c0d59884b2 SHA-256: e315d5c3c755f22b9f823ff52e93b164bdd84f549df5f7f7b2c147bae87b12a2
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain (ttraff.com). The document body, though obfuscated, suggests a lure related to 'grievance procedure steps pdf'. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to obscure the final malicious destination. The ML classifier strongly flagged this PDF as malicious.

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=grievance+procedure+steps+pdf In PDF document text
    • http://files.grapevineoasis.com/uploads/1/3/0/8/130814682/70f89b88.pdfIn PDF document text
    • http://files.zbsbatmitzvah.com/uploads/1/3/0/8/130873783/jipijomak.pdfIn PDF document text
    • http://files.brothernature.us/uploads/1/3/1/3/131379246/dipujejumaboxoza.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6063/3493/files/81990493940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4790/2629/files/jutepenero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5031/1579/files/exception_handling_mechanism_in_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ridojunewosinojep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6187/0741/files/letter_for_internship_request.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3311/6315/files/fowojiwizosapalis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2811/9706/files/40099191192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3296/0409/files/open_file_in_browser_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6447/5299/files/doxasejajesizolagig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2087/0044/files/grammar_worksheet_for_high_school_pdf.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 7

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_off000061d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D7 5088 bytes
SHA-256: 3b4a0d5a5b6d56b3510d1acd862408b4646ea9b6d12d48fe9dbc18424dff991d
font_01_sfnt_off00007336.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7336 9740 bytes
SHA-256: c9bd39f1e8fc12ca013f625f5b9533ba16491fab4bcc3bae7ca360c10bc7e57f
font_02_sfnt_off00009475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9475 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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