Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfd9d60ac864fb4d…

MALICIOUS

PDF

42.3 KB Created: 2020-08-19 21:03:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e16690b8ea067b32fda717f8833cd86 SHA-1: 73ee524ec6479154c1f3e57cd9472e26b1554b1d SHA-256: bfd9d60ac864fb4d4998d420b5df42e6571e102953ac34ac202e2358242fa8c1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though partially corrupted, contains text related to brochure templates and includes the primary malicious URL. This suggests a lure to trick users into clicking the link, which then redirects to malicious infrastructure.

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=2+fold+brochure+template+free++psd In PDF document text
    • http://files.ecguk.com/uploads/1/3/2/7/132740502/laxoraf.pdfIn PDF document text
    • http://fizexugew.flaentertainmentinsider.com/uploads/1/3/0/8/130814328/3530869.pdfIn PDF document text
    • http://files.rcsales.org/uploads/1/3/0/8/130814475/cf01f20.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/1/0430/8716/7645/files/21375146242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/77284036695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8714/3839/files/41634716493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2511/2988/files/1077563483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6874/4087/files/vasopresina_y_aldosterona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9350/8771/files/bizutewepavozepulejireki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49605194079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3618/0634/files/memirakiwato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2529/0648/files/journey_2050_worksheet.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_off000066c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66C7 5572 bytes
SHA-256: 0e4270ae0927a21f675c18f13b7fd380c14ba450519fd7289804209a3fcc35ff
font_01_sfnt_off0000798a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x798A 10272 bytes
SHA-256: a33552f33d6d589dd1180c6779c50661b6de6513b89ec6587d6824865720e6e3

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