Malicious PDF — malware analysis report

Static analysis result for SHA-256 eab81f3cc32ed99d…

MALICIOUS

PDF

65.4 KB Created: 2021-02-24 15:44:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3bc4d1483c739ca138c9a037b86a715c SHA-1: 910cf19b484eed850afd7de11040e0ee1fd8a729 SHA-256: eab81f3cc32ed99d7acf48212ce060c17088b60abc595c9cebe141b88698ba95
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://druttle.ru/wix?keyword=ms.+miranda%2527s+cake+shop PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379969/normal_601d056d51933.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501482/normal_5fcdb966ac065.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487007/normal_5fcacfc099b82.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461746/normal_601e527042a6a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480182/normal_5ffd5a4e77556.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490274/normal_5fd04df5caa11.pdfIn PDF document text
    • http://bumumapa.mypressonline.com/dabewejoxojutemebas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475194/normal_602a4f92a83c3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405929/normal_5feda0f54aa14.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465010/normal_5fcc8cced033b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464327/normal_5fe651a6f382d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413000/normal_60225daaa3f80.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490534/normal_60102accc4352.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486213/normal_6015b608bfb01.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/befafuni/mesuzugusirebavunewobi.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/50054670345.pdfIn PDF document text
    • https://s3.amazonaws.com/bidemewufa/crazy_train_tab.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_off0000c403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC403 5416 bytes
SHA-256: 0a844ac7aeedf2cdb45ba01e3a132751e24fc46f4989234a7244ec40b983d85c
font_01_sfnt_off0000d656.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD656 9920 bytes
SHA-256: a144fad8c40e369a1526adf9373765973538e9392f7cc86da1b1c6fdacb415f3