Malicious PDF — malware analysis report

Static analysis result for SHA-256 414c387c57aac018…

MALICIOUS

PDF

149.4 KB Created: 2020-08-08 05:47:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e3f97a8ca6613ff2173fffeb80ba4d12 SHA-1: 635b3cdcb3d763369d78b77a9a84e8a2a1c8d4ca SHA-256: 414c387c57aac01805d4032d08d6cd30575f5cf6cc107d4a7a588a5ca61e2301
134 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 'https://ttraff.com/pify?keyword=augustine+of+hippo+books+pdf'. This indicates the document's primary purpose is to lure the user to this malicious site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence for a malicious redirector attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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=augustine+of+hippo+books+pdf In PDF document text
    • http://files.skyvusolutions.com/uploads/1/3/0/7/130776152/sobemakawubi.pdfIn PDF document text
    • http://files.boysandgirlsclubsglbr.com/uploads/1/3/0/7/130776054/kawuzif.pdfIn PDF document text
    • http://solovali.oliveministries.org/uploads/1/3/1/4/131482976/9897827.pdfIn PDF document text
    • http://files.dogamelbourne.com/uploads/1/3/1/4/131437394/bfe8920.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/1/0434/8562/6520/files/sufebek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1484/8671/files/anganwadi_offline_form_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9685/1111/files/gejesefegujigeboruz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0755/7275/files/54531806043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7945/0272/files/melabotulomir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wogol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4124/3814/files/biodiversity_action_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9222/0840/files/sodogatebojoroxufowipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8933/0325/files/what_is_a_rhyming_couplet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5326/0700/files/lutamiforomelexin.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off0001f420.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F420 5160 bytes
SHA-256: 0f4f0421c6e701cd4f3d043a6a92932776f7cbe8b8805fed3ead00ec57c37a56
font_01_sfnt_off000205b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x205B2 14068 bytes
SHA-256: 5491a4e37cd2d7443a0aff3b12948c4004e2bd93d3c6ee95315321b90270c534
font_02_sfnt_off000232cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x232CF 16148 bytes
SHA-256: ebaa9d42c58e3fd25c8264bcf4ef2319fee467c92cf53dcc1f377a20fc8d39b0

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