Malicious PDF — malware analysis report

Static analysis result for SHA-256 58c0992800007f3f…

MALICIOUS

PDF

45.5 KB Created: 2020-08-09 20:33:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6b1879c300a4e96a12675eb8335acba1 SHA-1: 056c7e19f15a2f8a043d13e770e4206f3b1ade5b SHA-256: 58c0992800007f3f9391024620be3ba8ee8f8a995d5bbc67dd8c643f569d7084
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'California residential lease agreement' and the malicious URL. The heuristic firings indicate the PDF is acting as a link farm, directing users to potentially harmful content via the ttraff.cc redirector. No scripts were extracted from this sample.

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=california+residential+lease+agreement+pdf In PDF document text
    • http://files.modernhistoryseminars.com/uploads/1/3/0/7/130740624/68f69b674b9.pdfIn PDF document text
    • http://files.durhamsai.com/uploads/1/3/2/6/132680994/4669409.pdfIn PDF document text
    • http://files.lasclasesdesenorag.com/uploads/1/3/0/7/130739525/rokoregadalaxefaze.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3853/0965/files/assessment_of_learning_and_assessment_for_learning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7805/6091/files/85374358523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8030/3263/files/the_duck_song_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/bettina_bummelt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/62614675033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5332/5224/files/46949084813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7487/1715/files/aluminium_cladding_details.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6678/5949/files/16221455263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6387/8566/files/35843499692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9757/0980/files/52994994260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0509/9675/files/55190106777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4211/9592/files/medical_terminology_study_guide.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 8

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_off0000670e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x670E 5172 bytes
SHA-256: 67636701b18b53a2d787a629aff119e75dbf21905b4a75adad9500b8cd6390e5
font_01_sfnt_off0000788e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x788E 10024 bytes
SHA-256: e1df7c2556558ed96febf6ffd28aba6a9f9506fdf11b6cc65e44bd997a552bfd
font_02_sfnt_off00009ad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AD0 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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