Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed3d353a0ea02c25…

MALICIOUS

PDF

45.3 KB Created: 2020-08-23 08:04:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 86d5e395159fd9faf431370c89aa162d SHA-1: 6cdfba912655f0f2ae5a2f1f118968579a60938d SHA-256: ed3d353a0ea02c2584b7fab1a18418fa7b2704a3e63a9f81f1fd9a8c3e5a2d68
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://ttraff.ru/pify?keyword=template+arlina+design+terbaru In PDF document text
    • http://files.stfrancis-sthedwig.com/uploads/1/3/1/3/131380944/tofovo_divojilodixeral_ralipinavovusuf.pdfIn PDF document text
    • http://nuselamu.iwa-tellmyanmar.com/uploads/1/3/1/8/131856161/sopuxa_murowufet.pdfIn PDF document text
    • http://vosage.thelighthousebc.org/uploads/1/3/1/4/131407406/8d86556b65.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/1/0436/6260/6489/files/52195778069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1697/3476/files/irritable_bowel_syndrome_patient_education.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3942/4663/files/autosketch_apk_full_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5279/2982/files/90235763288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6843/2288/files/darezoxizexarofisapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4100/5480/files/finuwiratolefolunake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2135/2606/files/juwupogazemuteka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0899/9072/files/tutorial_audacity_bahasa_indonesia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4302/7106/files/4098762061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7274/8710/files/20258657298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5670/1346/files/10722724942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8413/6086/files/23419171127.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 6

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_off000066d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D9 5368 bytes
SHA-256: 8eeb506d4973c8eb71566137db8f05afaaae1dbef9efabc2df438556ce5cf897
font_01_sfnt_off000078f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78F1 14684 bytes
SHA-256: 9747da21af23874499dd052d131b560da2403d77ea5a56f764af66ae0cbbb1a5

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