Malicious PDF — malware analysis report

Static analysis result for SHA-256 d59e0370e7b13aec…

MALICIOUS

PDF

61.2 KB Created: 2020-07-31 03:46:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5c8091348b10d49258c4408e72239d6a SHA-1: 736d0a82431a8cb15ceb441dd4d8830a96c6b968 SHA-256: d59e0370e7b13aecd340ed7cece652e6ae82498fea641ffa7ce5d765d3312a45
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with at least one pointing to a known malicious redirector. The document body is heavily obfuscated and appears to be junk data, suggesting the primary purpose is to host these links. The heuristic firings indicate this is a link farm designed to manipulate search engine results or redirect users to malicious sites.

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=journal+algerie+aujourd+hui+pdf In PDF document text
    • http://files.rweirworks.com/uploads/1/3/1/6/131637108/47ddf8c9a7057.pdfIn PDF document text
    • http://files.amgfashions.com/uploads/1/3/0/7/130776363/bajiv-makezojerifam-turuzosavur-datomo.pdfIn PDF document text
    • http://files.christchurchfernie.ca/uploads/1/3/2/3/132302999/42852.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/1/0438/5452/8677/files/81665890898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nofalefupipalivudekim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2733/1232/files/radiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tivaluzisezulumavolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8104/7957/files/44043675239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9350/7739/files/degovedigewimixulijetuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6504/0286/files/18600018025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9782/6207/files/zejanogerufogojajew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3134/7868/files/29255050254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1405/2247/files/sukefonemivigiguvirebuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1954/1416/files/39776718558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5928/1061/files/84463028572.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000096fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96FB 4992 bytes
SHA-256: a2b6cd036e5f9ac47f51247d22cb39c55f6215e55865cbffadd5ef6737d81503
font_01_sfnt_off0000a7e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7E4 12796 bytes
SHA-256: 7eb09adfa670f25f073f8e21404ac6b6f2c60dccf1dd064adf5ad8ddf81ddc3b
font_02_sfnt_off0000cfd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFD5 16312 bytes
SHA-256: c0cab783d3e079ae4201b9bb0ad862673a6b976dd0c6173cc457be62e7bdd148

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