Malicious PDF — malware analysis report

Static analysis result for SHA-256 27306a62c58960e2…

MALICIOUS

PDF

72.9 KB Created: 2020-10-28 14:50:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-10
MD5: c448234543ae358356c34caa4f373354 SHA-1: 4eedff18b5b6fe2ad0c1dd77bca3674fed5e0896 SHA-256: 27306a62c58960e2c2e42f4aa4b42623c2a505bd1838c3a2f1746b63dc941047
184 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.me/pify?keyword=form+and+space+in+architecture In PDF document text
    • https://wopuremob.weebly.com/uploads/1/3/2/6/132696580/4324019.pdfIn PDF document text
    • https://derodaju.weebly.com/uploads/1/3/1/6/131606282/zemekoxo.pdfIn PDF document text
    • https://fidevawane.weebly.com/uploads/1/3/0/8/130814252/sabivalus_juzigaf_kuxufareme.pdfIn PDF document text
    • https://xigokerurubupa.weebly.com/uploads/1/3/4/3/134312623/tokolamito_kozavubewupi_sexapagu_rigowofalav.pdfIn PDF document text
    • https://nitetezelimon.weebly.com/uploads/1/3/1/4/131438651/kegusadatewunar_banifiwi_dovisupibezi_jegurip.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/ce02014a20d.pdfIn PDF document text
    • https://dosedoduni.weebly.com/uploads/1/3/4/3/134347632/ed498d7cb547.pdfIn PDF document text
    • https://jusujonolixutuw.weebly.com/uploads/1/3/1/3/131379247/2077266.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000de85.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000de85.bin)
    • https://cdn.shopify.com/s/files/1/0502/2069/5742/files/keurig_coffee_maker_reusable_filter_instructions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5442dae0-6657-4ec9-a25e-4b07176d306f/4142768619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/4723/8811/files/iridium_go_installation_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba602d65-5ace-40f3-8539-8e62654217c5/18858065149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0469/0349/2770/files/logo_maker_pro_apk_cracked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bd3fda6-24db-4709-95ed-db2dc9f1045b/91025729110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/9407/2214/files/royal_doulton_figurines_prices_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43cbcd39-6497-4f5a-b0e7-80814de580d3/basisariwapivugimulo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97b9a216-3ad3-4ad4-b9c9-9c17543d401e/15637291205.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/782f55e5-6613-42eb-8472-b1533003caa6/18159092023.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c0ef5fb-c7a4-450b-8f79-e95fa8022389/71385701970.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_off0000de85.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_off0000de85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE85 5236 bytes
SHA-256: 6d1449b75b9ba220e604d659c2edc908dfe0437660a3841a191c60516c562ff1
font_01_sfnt_off0000f024.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF024 11700 bytes
SHA-256: a36c467d86b19797d8346e3aaff9cf501eff8f0d3da68a6b4c2feddb7743aee5

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