Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f4796157e56dbed…

MALICIOUS

PDF

48.6 KB Created: 2020-10-26 21:00:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 1e295859fd22b8e4d2441d97850880bc SHA-1: 48b2ed8368e71704423f99c17c5fb5fd44ccb06b SHA-256: 6f4796157e56dbedfcc8185c9d20b79232f98be5110b04b3367e8976b69f1f5c
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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/123?keyword=the+bible+code+michael+drosnin+pdf In PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/vunud.pdfIn PDF document text
    • https://folukufisika.weebly.com/uploads/1/3/1/3/131384255/5182381.pdfIn PDF document text
    • https://zizuralozirufu.weebly.com/uploads/1/3/1/4/131483034/9eb8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383582/normal_5f95846a70c42.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378618/normal_5f910e15d050a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371806/normal_5f924d135db44.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366645/normal_5f8df26787489.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370744/normal_5f961f8b067aa.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/1/0500/5731/4462/files/97069502440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/6961/1418/files/alternative_to_google_maps_api_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/7248/3228/files/metv_on_directv_indianapolis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5276/8666/files/funabuse.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf3417c8-1231-4241-a62e-0a38f07d73ec/90869053620.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ca8f66b-2bda-4763-82e4-8a9fd8f9afad/bamolawinole.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b9f0fe5-c836-4764-9aa0-2e913ba203ff/zoxoz.pdfIn PDF document text
    • https://s3.amazonaws.com/sisaxu/ccna_200-_125_dumps_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/89306004786.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/broncho_pneumopathie_chronique_obstructive.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/2463746375.pdfIn PDF document text
    • https://s3.amazonaws.com/wavunot/applied_management_science.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/rutumilijokadoz.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/16396647192.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C6E 5484 bytes
SHA-256: 14e7cc30b0623a0f1a035f81236f6415f551a6d9a6124191d7591f9ce3ce5458
font_01_sfnt_off00008eda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EDA 11324 bytes
SHA-256: 95697ce1540df05d8229ed9f81247e62f2385256f9261e10613e7c07790f84b3

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