Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fd9c14c69ebd44a…

MALICIOUS

PDF

43.0 KB Created: 2020-08-11 07:27:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01d62300853cd468d6bc0ac10b34478c SHA-1: 82d8d7942cabb1e00d223525d778f40ad0dd3555 SHA-256: 4fd9c14c69ebd44a388ac104f95f8398eaa0a23c448f1e785d52bc00a4aba13f
194 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 characteristics of a PDF link farm, with numerous embedded URLs, many of which are hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and a benign-looking title, suggesting a lure to disguise the malicious intent. The primary goal appears to be redirecting the user to a malicious site.

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=heilbrunn+timeline+of+art+history+pdf In PDF document text
    • http://files.graysvarsitygreek.com/uploads/1/3/1/0/131071258/d7f3f561ea820ef.pdfIn PDF document text
    • http://files.shopvarietyislife.com/uploads/1/3/1/4/131409861/gikeriximebegexetot.pdfIn PDF document text
    • http://files.skylightyogafit.com/uploads/1/3/0/7/130775825/1471912.pdfIn PDF document text
    • http://files.fcccambridge.org/uploads/1/3/2/7/132740836/612424b.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/1/0432/7315/8821/files/68859366255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4414/2245/files/odia_book_file_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6559/8364/files/nenuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7355/1001/files/rolovigolageg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0643/5232/files/runoruviridemim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4121/0024/files/38161541590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53567737566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2742/9533/files/gaforawefofikojajewaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6239/4008/files/create_a_list_in_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0691/7799/files/vojosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/55347009907.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 7

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_off000069c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69C7 5484 bytes
SHA-256: e31aca2951bf2f84678f2df7f89c0d25ebcd98b7edeb45044978526e20389a3a
font_01_sfnt_off00007c36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C36 10236 bytes
SHA-256: 8de6bbbeb67762dff5d5dc26e3582046524380264823558e2391f7e4a5a19ceb

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