Malicious PDF — malware analysis report

Static analysis result for SHA-256 15c02e68073451ac…

MALICIOUS

PDF

41.9 KB Created: 2020-10-30 00:58:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: e67ed98d0bbcd0845d536950ac28b1bf SHA-1: f62544daffb5190252ad8ba44742ddc4edc4b8ca SHA-256: 15c02e68073451ac4ce8082da73b8ee65787581a86ca75b0bc70597620cbcf8f
194 Risk Score

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://cctraff.ru/aws?keyword=figure+drawing+for+all+it%2527s+worth In PDF document text
    • https://xanugobolenaz.weebly.com/uploads/1/3/4/3/134371028/nizatabofiruka.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391893/normal_5f954953df09f.pdfIn PDF document text
    • https://vujerige.weebly.com/uploads/1/3/4/4/134467486/nasiza.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000669d.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000669d.bin)
    • https://uploads.strikinglycdn.com/files/398176c0-9bae-410d-953b-313d3ba0f7f2/32239570291.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6445fdc2-88b9-46c9-bd25-6d28717b6ae2/86252165036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/7252/8799/files/85075478500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0063/5290/files/65402231897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0508/2936/1335/files/lelubiwanixixagopakor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0507/2375/0058/files/tanki_online_hack_tool.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8645/3663/files/cast_iron_stoves_history.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb6803f3-d80d-476f-b0ce-c3a6b28002da/wabogalodasaderunu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a78fe9a-0b9f-4275-8a4d-25b6b8312ba1/xeranibolupivafisigum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99404829-6039-481e-8d1c-453eb29d5456/2324470748.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 extracted file (font_00_sfnt_off0000669d.bin)

Related samples 8

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_off0000669d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x669D 5252 bytes
SHA-256: 29cad5ae9a5a4af4fc4e83bbcf3bfbb08010be976a6c14afb917983d05e2b960
font_01_sfnt_off00007893.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7893 9932 bytes
SHA-256: a9aa11c9cac23ff77556cc631d67b0201127577c19d6bf15a3bdc07a0b1b7705

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