Malicious PDF — malware analysis report

Static analysis result for SHA-256 f361eb2ff38b95b7…

MALICIOUS

PDF

42.7 KB Created: 2020-08-18 13:43:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 49adb24c6d9509a49e7a624f045f946a SHA-1: 772fff30d762ab86c0594cb4ba0c030794ebb4bb SHA-256: f361eb2ff38b95b7fa423a0197fd8c3f55e40317b6b8011fe5646ca65a8fe101
134 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The embedded URL `https://ttraff.com/pify?keyword=iala+buoyage+system+pdf+free` is identified as malicious. The document body, though partially corrupted, also contains this URL, suggesting it's the primary lure. No scripts were extracted, but the presence of a malicious redirector is sufficient to classify the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=iala+buoyage+system+pdf+free In PDF document text
    • http://files.ann.envisiongalleries.com/uploads/1/3/2/8/132814219/1983201.pdfIn PDF document text
    • http://files.amaysingsvgs.com/uploads/1/3/0/7/130739871/voxabovodekajor.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/1/0453/9298/6280/files/zotejun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2134/2619/files/99950930575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9257/3334/files/efficient_and_robust_automated_machine_learning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/5771/7915/files/13013567160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5360/5273/files/54076344599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8323/5489/files/kiluwitufot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6284/8664/files/53058075724.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A01 5540 bytes
SHA-256: 6cbc9abac7d0a6da24636be7c67303b4444925d981269470b0165b23339e3d60
font_01_sfnt_off00007cbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CBB 9928 bytes
SHA-256: e4779ff492eae7f3b12f0f29c570a63a2906e2f9ad65fd17c0eab86f68de0258

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