Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e14158eae689a34…

MALICIOUS

PDF

69.4 KB Created: 2021-02-13 14:32:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: bdbcc25233cc6495e5c03576b0250669 SHA-1: 0a0ed1ae85a5898806f2176193a6a11d3a1f025c SHA-256: 1e14158eae689a34e2ecadad160b7411d883c9b85a6d043928244b7e109e4750
196 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
  • 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.
  • 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://baarspo.ru/123?utm_term=watch+freedom+writers+online+putlockers PDF link annotation
    • https://cdn.sqhk.co/nomazotesi/gjXWjcz/76860533997.pdfIn PDF document text
    • http://momentikshop.space/196745314546nkwi.pdfIn PDF document text
    • https://pimakesoxokozo.weebly.com/uploads/1/3/4/0/134041299/palorezo.pdfIn PDF document text
    • https://cdn.sqhk.co/xijogedobu/aYgjgfu/30_games_in_1_app.pdfIn PDF document text
    • https://nawivavunof.weebly.com/uploads/1/3/4/6/134669961/f6989793cace.pdfIn PDF document text
    • https://mawetifatine.weebly.com/uploads/1/3/2/6/132683292/guvomiwemoga.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389821/normal_5ff27435bcd99.pdfIn PDF document text
    • https://cdn.sqhk.co/lipisedopila/dWmgcmz/juxiwopadi.pdfIn PDF document text
    • https://cdn.sqhk.co/kinibemazoz/dhhkjia/katafewutufijoro.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/wegugus/mezorumiwenimuf.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/performance_appraisal_forms_for_employees.pdfIn PDF document text
    • https://s3.amazonaws.com/viboxikuz/telugu_calendar_2018_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/xomepixo/performance_attribution_analysis_real_estate.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/mulawokoxefufako.pdfIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/uc_browser_browser_fast.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_off0000d206.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD206 5564 bytes
SHA-256: 7e18f9b6c86207ac5bf881404af5e57aea6a442aff765e602a4f18a29bc21074
font_01_sfnt_off0000e4e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4E6 10464 bytes
SHA-256: e801933a6b30912adc3ec1bd15e6ff66c923caf1cd53c70c570f326a99e7242c