Malicious PDF — malware analysis report

Static analysis result for SHA-256 a547d4d7129249ea…

MALICIOUS

PDF

43.2 KB Created: 2020-08-07 02:55:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c58610e3aa65346e0d64961b287b728e SHA-1: eea0e45aac72493e968f2185d3cee3d660d1c196 SHA-256: a547d4d7129249ea28c9bd318a71fc69017e69ae68ad3032d8657e656adae328
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded URLs, with a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. The document body, though partially garbled, includes text referencing 'cracker barrel menu pdf 2020' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=cracker+barrel+menu+pdf+2020 In PDF document text
    • http://zekoremo.sherrardtigerstv.com/uploads/1/3/0/9/130969204/dewekerajetij.pdfIn PDF document text
    • http://files.bellevuewestfootball.com/uploads/1/3/0/7/130775436/zetibipakubunek_watofag_dixusijesaza.pdfIn PDF document text
    • http://files.gbartistsassociation.com/uploads/1/3/0/7/130776728/zipelurusativuki.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/1/0429/2427/7923/files/zosewonagepalewojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6309/1112/files/domatitixevenima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5778/2690/files/31079437427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6876/7907/files/bolsa_de_valores_mexico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7519/9391/files/95245096735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1241/5907/files/91572939247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4361/8965/files/med_surg_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/25167768227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4297/1553/files/lazelupugeleko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5308/0991/files/92469583303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6545/8336/files/free_ringback_tones.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9830/0823/files/wabobim.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_off00006953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6953 5504 bytes
SHA-256: a08cf38dab3393c5233930aec58ffa5fc3def186f7566ab4cba46161110f0d9d
font_01_sfnt_off00007bf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BF6 10488 bytes
SHA-256: 50b796209fbf6620891f3af8e458672df83c62963b8e4fefc6ada3b972c98fd8

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