Malicious PDF — malware analysis report

Static analysis result for SHA-256 dee4cac5096e435e…

MALICIOUS

PDF

54.6 KB Created: 2020-08-08 15:35:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 308b511773288e8149c1f46ee392b8f0 SHA-1: 15d1019dedfd91e473a4c25fe83d4ff444f95deb SHA-256: dee4cac5096e435e691060cabd58d4a7df14d41203231116a9528f0a8bf6e599
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, also contains the URL 'https://ttraff.cc/pify?keyword=preparing+trial+balance+pdf', suggesting a lure to a malicious site. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm designed to attract traffic to potentially malicious destinations.

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=preparing+trial+balance+pdf In PDF document text
    • http://vajepoj.rivergrilleeaston.com/uploads/1/3/2/6/132681670/bisixowikobu.pdfIn PDF document text
    • http://files.dgelectricinc.com/uploads/1/3/1/0/131070845/lobakatibe-pusumasubesaja-fizimerifemob.pdfIn PDF document text
    • http://baminogo.gearpornberlin.com/uploads/1/3/2/7/132710797/nekinona.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/1/0434/1576/5159/files/35297399858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5536/3734/files/chemistry_chemical_formula_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0711/3373/files/adobe_reader_convert_to_word_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4266/8698/files/python_attributes_and_methods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5430/8245/files/piya_basanti_re.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9850/5369/files/67752879460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1778/1927/files/soldier_voice_lines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3273/0017/files/5074604922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61047377128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6624/4766/files/78100535203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7243/7913/files/setolepujul.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 1

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_off0000979f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x979F 5284 bytes
SHA-256: ce63b2f356b000ad44f6369e97a8084f0febd54df39dc0c4c24ca357a94e206b
font_01_sfnt_off0000a9a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9A5 10652 bytes
SHA-256: f9435944177a5420547a28ee40f60fe8351de8a0d9238907260cc869c7242087

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