Malicious PDF — malware analysis report

Static analysis result for SHA-256 820c7751e9231648…

MALICIOUS

PDF

40.1 KB Created: 2020-11-07 03:02:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: e8cc80722de59c679e6d92355077e59d SHA-1: 008bfd5fb6756a576becaaa9acb7b93f730dcdeb SHA-256: 820c7751e92316483823240dc5336a045ccad2aa6a2358fe01ae463a57f5fec0
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffi.ru/aws?keyword=patron+saint+anne+mother+of+mary PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366018/normal_5f98cc16a290e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382629/normal_5f91037eb400e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385880/normal_5f9f7c4949240.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/foburadip.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393489/normal_5fa1a4a3e2564.pdfIn PDF document text
    • https://dapujevubo.weebly.com/uploads/1/3/1/4/131438680/b25b27.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414335/normal_5fa2cbfa91df5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c69364c3-57fc-4187-9af9-f38ad0a0dd2b/65599363064.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b32bcc8f-096d-4433-a012-a43b832e6808/26619001291.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff25b544-6fe2-406e-95c8-097c5f833e95/55577782183.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/edaa19c6-66fe-4381-982f-d023db39a72e/the_fast_forward_mba_in_project_mana.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82100c97-2128-4024-bfae-daf19fc5c9da/12721501851.pdfIn PDF document text
    • https://notazit.files.wordpress.com/2020/11/20037331592.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/bee_swarm_codes_2020_april.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_off00005e77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E77 5076 bytes
SHA-256: 59e4ff93ad1100eae0f41c3babde3faafe7c9418923dba7c58a9c0bfbb886dbc
font_01_sfnt_off00006f99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F99 10820 bytes
SHA-256: 187455e5e6b6b504b1dfa61bd9cdff434aab55eba602cdec6cbe99e5261a4208