Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c7ea6d57239e38f…

MALICIOUS

PDF

39.1 KB Created: 2020-08-25 10:41:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 31743d0eff05130f5fe62a156d525d74 SHA-1: c38a73c7ea4cdad2ca5e3ef471f3b87e6c5c355f SHA-256: 5c7ea6d57239e38fc5ef7d727a6ceedca22dc37154dc759475fe963bca9e46ce
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links designed to appear as legitimate documents, but they redirect to malicious infrastructure. The primary redirector URL is `https://ttraff.cc/pify?keyword=health+and+safety+audit+report+pdf`, which is likely used to distribute further malware. The ML classifier strongly indicates maliciousness, and the heuristic firings confirm the use of redirector links for SEO-based phishing.

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=health+and+safety+audit+report+pdf In PDF document text
    • http://files.garretreich.com/uploads/1/3/0/7/130775759/maxoz.pdfIn PDF document text
    • http://files.brittanypelias.com/uploads/1/3/0/8/130874082/povusufukumifo-pamoziki-jagitetigume-wufow.pdfIn PDF document text
    • http://vewurifu.girlbeyou.com/uploads/1/3/0/7/130776647/wimamux.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/1/0430/9568/7328/files/active_directory_server_2020_r2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8982/1847/files/8859130157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42778697636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9671/7992/files/2186094535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9970/8821/files/12910148000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3925/0853/files/91809534914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8951/6962/files/sevetevuxeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3939/0872/files/comparison_between_dna_and_rna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6966/9527/files/jerotogukakaviza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/99549249112.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_off00005ac5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC5 5192 bytes
SHA-256: ed913008abcd7832c42a9e90df5a3ac142b6f05aeeae5937bc339fd1c7f8ae84
font_01_sfnt_off00006c66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C66 10276 bytes
SHA-256: d9c40994059655cefde7607344127eefa1ae005abbfe5fd585f16daef2f49536

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