Malicious PDF — malware analysis report

Static analysis result for SHA-256 be6d1dc5a1cc794e…

MALICIOUS

PDF

253.5 KB Created: 2020-08-19 11:19:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 650a29e6bf3765844b926fa711927bdb SHA-1: 3611d87482f309e064f9d84b191f1238b1efa3fa SHA-256: be6d1dc5a1cc794ed92adf45a2ec98ed131a368b0bf0be1baa61a36fae14d746
134 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is a strong indicator of malicious intent. The document body, though heavily obfuscated, appears to contain the malicious URL. The heuristic firing confirms the presence of a malicious redirector link. No scripts were extracted, and the document body did not provide further actionable intelligence beyond the embedded URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

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=guidelines+hyponatremia+2014 In PDF document text
    • http://files.naturallynickelfree.com/uploads/1/3/2/7/132710624/nasejurolasid.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/1/0434/7881/0789/files/67774957520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1370/9722/files/59302438655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6954/7431/files/winrar_terbaru_2019_bagas31.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8714/3839/files/56684829357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luvibuxunefipefijuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0921/0529/files/3dse_bios_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4155/3575/files/south_movie_mp4_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8767/6063/files/zatadexarowaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1508/9825/files/emotional_intelligence_training_materials.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2132/6742/files/21718775517.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 2

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_off00038c7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38C7C 5744 bytes
SHA-256: ec3473a4d44d44048ec684aecfd4faaf128dc9cdceb20aabdd776a79c1b1e978
font_01_sfnt_off00039fe5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39FE5 15592 bytes
SHA-256: 5673a408b400cd2e56790d1261d6e0117867a3a29020ad672222ac1370bfef63
font_02_sfnt_off0003d060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D060 16460 bytes
SHA-256: 4428f9f4c34dbfcd9adb2e530098ad58bcf526ae0772cb312cae30d75f99c3bc

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