Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbcd09ad7de529fd…

MALICIOUS

PDF

41.2 KB Created: 2020-08-27 22:42:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d14986db4ef92b68555fddae42309e7 SHA-1: 05f7bf88a283040d1b29106f0f5b86c712d7380a SHA-256: bbcd09ad7de529fd96c5d9d74bc25f5bc232aeb7ca4f726312d88ba45ef60ecd
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links, however, redirects through ttraff.com, a known malicious redirector. The document body contains garbled text but includes the target URL, suggesting a lure to disguise malicious activity as legitimate content. The presence of a malicious redirector indicates an attempt to lead the user to a harmful destination.

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=fun%25C3%25A7ao+quadratica+exercicios+resolvidos+passo+a+passo+pdf In PDF document text
    • http://files.cjsprofessionalcleaning.com/uploads/1/3/0/7/130776275/mimumasek.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/1/0449/7106/5503/files/ragesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8391/4654/files/burnout_paradise_mobile_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0113/3731/files/fidasisogejejupetifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5679/9648/files/properties_of_acetic_acid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/84064746431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9360/9896/files/hemorrhagic_gastroenteritis_in_dogs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dusegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4953/2069/files/pawotaxuze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2212/1122/files/43186584564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/6691/6763/files/case_information_sheet_denton_county.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4140/6631/files/fopowonosup.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 4

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_off00005be8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE8 5540 bytes
SHA-256: 0eb2332f9c6744875e38aefb3bd39bab306a5bf4c9a5c191e45de1d7c74e26e2
font_01_sfnt_off00006e91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E91 12580 bytes
SHA-256: 3015b23a679da5eb2ef69c51751e54e1fa1b503869bc301f5381b3fdff7b32bb

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