Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb4547ae7494cb44…

MALICIOUS

PDF

40.0 KB Created: 2020-08-05 13:59:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a4133e5bb8bfd59e6d6acbe491ece659 SHA-1: feed95d34bf491b4346e7a19741ffcd97e8c5189 SHA-256: eb4547ae7494cb4468a9422c423534c12e7fa3970bcae4d0eaf9750f606e1c01
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. Additionally, it exhibits a PDF link farm heuristic, with numerous links pointing to Shopify domains, likely for SEO poisoning or hosting malicious content. The document body, though garbled, contains text related to a 'flat rent agreement format pdf', suggesting a lure to trick users into clicking the malicious link. The presence of a download button heuristic further supports a malicious workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=flat+rent+agreement+format+pdf In PDF document text
    • http://files.mariangardnerstudio.com/uploads/1/3/1/8/131856065/denita.pdfIn PDF document text
    • http://files.rap-lin.com/uploads/1/3/1/4/131453031/sojula.pdfIn PDF document text
    • http://files.austindemaille.com/uploads/1/3/2/7/132740435/kofarefawegetine.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/1/0430/8946/1402/files/78528537568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/febuxevabotesidimegug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4671/5040/files/20727158138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3630/9666/files/75771663018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/benzoato_de_sodio_propiedades.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2784/9639/files/56876328473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/root_cause_analysis_handbook_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16494210232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5702/8001/files/ceremonial_magic_and_the_power_of_evocation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0151/2090/files/fowogedekilizebo.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_off00006073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6073 5140 bytes
SHA-256: 9cae3e60fbd464460c1bccb7e3430e1b29ee0456df9990be5873c27554f4b240
font_01_sfnt_off000071e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71E2 9800 bytes
SHA-256: 94f503c5b231a0d8b1415f2ade071e10f190dfda24802035f953b2029f095f63

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