Malicious PDF — malware analysis report

Static analysis result for SHA-256 9359f4898c448827…

MALICIOUS

PDF

35.6 KB Created: 2020-08-25 20:56:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4bc53b868da05c9e10750d3653253239 SHA-1: 639bc083ae50d223fbfa1afdf8e41ad87ee104d0 SHA-256: 9359f4898c44882717fa724b0f661c107bc64696e6be0a7927cef50c8e51b1c7
194 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of a link farm, with numerous embedded URLs. One of these URLs, 'https://ttraff.com/pify?keyword=para+salvarte+jorge+loring+gratis', is identified as a malicious redirector. The document body contains garbled text but also includes the same malicious URL, suggesting it is the primary lure. The presence of a link farm and a malicious redirector indicates an attempt to lead users to harmful content, likely for phishing or malware distribution.

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=para+salvarte+jorge+loring+gratis In PDF document text
    • http://files.standupprojects.com/uploads/1/3/1/1/131163856/3c869aa.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/1/0439/0689/1931/files/physics_of_atoms_and_molecules_bransden_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9392/3742/files/difudekeximunawuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3975/9259/files/vebodiligogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0743/3125/files/fagopufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4936/9252/files/47956578074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6440/9764/files/morazivozet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5145/6411/files/euler_hermes_group_sa_annual_report_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/7249/5272/files/hitachi_starboard_software_9._6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/5968/0156/files/b._pharm_colleges_in_tamilnadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1615/9395/files/todelabedaxebagajeja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/sunulituzotuxezikoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0287/9387/files/83685298552.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_off00004f9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F9C 4988 bytes
SHA-256: 711627c4fc4ae2902e3af856b4a63a58607b95664afedc22b70291ec8ea2dbb2
font_01_sfnt_off000060b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B2 9764 bytes
SHA-256: 4dbdbbc54d73cbabcb25ec062bebd997e473df902ef383463e06e9c4d849339b

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