Malicious PDF — malware analysis report

Static analysis result for SHA-256 70b690107f5bb13d…

MALICIOUS

PDF

71.8 KB Created: 2021-02-08 15:52:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c0e66b845861871bff2c88f015c5a604 SHA-1: 146d890397b68f3563d5cd539d13e325ca97417c SHA-256: 70b690107f5bb13d3dddd3b4d9ac80da312a048201547d7d1e2118f0a508886a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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://leonvi.ru/wb?keyword=football%20hd%20video%20songs PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4448113/normal_600135e22cc62.pdfIn PDF document text
    • https://cdn.sqhk.co/lepudijazur/bnhsaUq/java._lang._outofmemoryerror_permgen_space_tomcat_7.pdfIn PDF document text
    • https://cdn.sqhk.co/livukigelo/qjch7gc/53250026615.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469386/normal_601376ed8e8ad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490754/normal_601f1408d06a7.pdfIn PDF document text
    • https://cdn.sqhk.co/manowipete/nRQ7Ohc/diversity_synonym_definition.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488323/normal_602100cb235fd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487665/normal_5fde7fb17371b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415531/normal_5ff01cf97d38c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450721/normal_5fcf743d082c7.pdfIn PDF document text
    • http://marudibiwel.iblogger.org/arduino_wifi_relay_android.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tojopoxirer.rf.gd/piano_songs_chords.pdfIn PDF document text
    • http://zaxukesaludu.epizy.com/ryzen_1200_oc_guide.pdfIn PDF document text
    • http://limixumijegaf.epizy.com/fagor_oven_user_guide.pdfIn PDF document text
    • http://vatodulalidi.rf.gd/dialectical_behavior_therapy_treatment_manual.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_off0000de43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE43 5148 bytes
SHA-256: 7d084de2de159520616e0b24c72171327722e8bbb4a05d102661aebbc3e0b04e
font_01_sfnt_off0000efc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC4 10128 bytes
SHA-256: 51fe8a330ebebd104d6632cce0dd740503ac9aebe526f9ca7bfff3dc43499505