Malicious PDF — malware analysis report

Static analysis result for SHA-256 dab1b054f54cbbe5…

MALICIOUS

PDF

74.0 KB Created: 2021-02-13 10:08:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3d0707a2eed417155a5c66be7403ab79 SHA-1: f633c508fdab7ed78a169ccadabd81b06484619d SHA-256: dab1b054f54cbbe5692d32af92eff40f84d49ba57287b197fa7aa7905f972d62
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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/wb?keyword=child%20protection%20victoria%20mandatory%20reporting PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4446390/normal_6021c18b79faf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405430/normal_601881b443dd7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365536/normal_600df77f7ce47.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427313/normal_5fd8b3e667321.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460946/normal_5fce00c3c99d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379371/normal_601cb815004fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481270/normal_601701c64006f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416500/normal_5fc8970561019.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477387/normal_5fe331e843670.pdfIn PDF document text
    • http://ruwegekugite.22web.org/young_detective_dee_english_subtitles.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403948/normal_5ff2a22dc9764.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388421/normal_5fca32bb356dd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wajodojizofe.epizy.com/customer_appreciation_event_invitation_template.pdfIn PDF document text
    • http://verekoxamokit.epizy.com/retail_marketing_strategy.pdfIn PDF document text
    • https://s3.amazonaws.com/paxunu/30025899249.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_off0000e560.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE560 5376 bytes
SHA-256: c65b444109cf0bccd1eae149235f93b7730348322906c29a58277360faad1fb2
font_01_sfnt_off0000f789.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF789 10428 bytes
SHA-256: f6e303092f8f17528010994f5a483d4c81ace52354234837bd5527441d8f26e5