Malicious PDF — malware analysis report

Static analysis result for SHA-256 7832ebcf30385e1b…

MALICIOUS

PDF

40.0 KB Created: 2020-11-06 01:06:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 3884c23bf3c500d4d4558396cdd09524 SHA-1: d907a20c2de980c421e1ebb1c7a66f7d21cd692c SHA-256: 7832ebcf30385e1b6200619ada43b8f958bbcedf013292ff984619bf47e6315e
84 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://traffset.ru/aws?keyword=baskin+robbins+application+pdf+file PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379984/normal_5f99faf34f963.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381104/normal_5f8d0d58efbf3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378386/normal_5f983231da9d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412890/normal_5fa484295fde3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417662/normal_5fa4766958663.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413587/normal_5f977bd41b898.pdfIn PDF document text
    • https://papunagaku.weebly.com/uploads/1/3/1/3/131384156/7292536.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/cc8b0b9f-3534-4f54-8530-f7475b2d4e08/99759452402.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94915115-2701-4940-9f77-d29e826c7b27/le_littoral_franais_ce2.pdfIn PDF document text
    • https://s3.amazonaws.com/xukonakefules/20646887065.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_off00005bad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BAD 5404 bytes
SHA-256: 9f167fe58f5435ae1dcb1b843571d8a45c00e58cc5fabac99dd74ee381e4b9ba
font_01_sfnt_off00006e1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E1A 10972 bytes
SHA-256: 484349431480bb06b60b309c66294581f5efd713d740ac864f30bd18e0f06aec