Malicious PDF — malware analysis report

Static analysis result for SHA-256 452f7ccbbcf14927…

MALICIOUS

PDF

57.1 KB Created: 2020-08-11 21:33:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d917670b5c46a5488f934c85f17f9d53 SHA-1: 865c0a346b014eb1daf73b5c259dfada83e517dc SHA-256: 452f7ccbbcf14927734f136d2aba689638faa69f58a86a47bcc5388968adeda1
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to a known malicious redirector. Additionally, it features a large number of external PDF links, suggesting a link farm for SEO manipulation or traffic redirection. The embedded URL points to 'ttraff.com', which is associated with malicious redirector activity.

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/wb?keyword=bsc%20balanced%20scorecard%20pdf In PDF document text
    • http://files.geekburning.com/uploads/1/3/1/3/131379696/a56a9.pdfIn PDF document text
    • http://files.penrosetutoringandlearning.com/uploads/1/3/1/4/131453194/mogijuxove.pdfIn PDF document text
    • http://files.midwifemaddy.com/uploads/1/3/1/3/131380612/2f8bdde3.pdfIn PDF document text
    • http://files.whistlecreekfarm.com/uploads/1/3/0/7/130739974/1482818.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/1/0432/0044/6626/files/kagel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3583/6068/files/60531933912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3852/3047/files/9330689600.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3801/4616/files/34563809362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5596/4569/files/birirolobabonakuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7097/0274/files/53860429113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/65020753068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3991/5175/files/nogemonox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/2595642827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4740/3168/files/jibabefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/jujewobabufuruwimu.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 8

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_off0000a21a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA21A 5336 bytes
SHA-256: 3738547c53049491780df1de28e013c5c0b3649d27cfe91c177618a0197a9efb
font_01_sfnt_off0000b440.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB440 10316 bytes
SHA-256: 71a2e7225c005851fd026c2d80d1b55fb0dec996eb5d8bf3bbaa0aeb40defe76

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