Malicious PDF — malware analysis report

Static analysis result for SHA-256 e80e38b7c3b0ce7b…

MALICIOUS

PDF

71.5 KB Created: 2021-02-22 19:42:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: cd82c266d92b0fc03a32c2116f50688d SHA-1: dd834948702947c36397b96073b932e33354d3f4 SHA-256: e80e38b7c3b0ce7b636e3faaa8ee26fa077f7da019dfdd00978dc8545957a62f
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://baarspo.ru/aws?utm_term=toro+power+clear+721+instruction+manual PDF link annotation
    • https://cdn.sqhk.co/jarixizotib/3iMibpA/xebexoseretiwitobul.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385437/normal_6019cf3373649.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423454/normal_5ff02568348e8.pdfIn PDF document text
    • https://cdn.sqhk.co/pidodalatip/fUHb8jI/tripp_trapp_chair_cushion_pattern.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370062/normal_5fef6a6372151.pdfIn PDF document text
    • https://cdn.sqhk.co/wadelovelo/b3jbgih/vabulobebesixiweden.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490244/normal_5fe4fb2da63d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369332/normal_5fe7d270dd966.pdfIn PDF document text
    • http://rodina38.ru/elric_of_melnibone_book_2ovqwy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417429/normal_5ff1bbdd6d10a.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/dozore/very_hard_math_equations_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/free_yearbook_templates_for_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/86963856254.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/c_r_b_full_form.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/has_it_ever_snowed_in_summer.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_off0000daaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAAF 5384 bytes
SHA-256: 708a781eadffca0b0bc719b0e25375c3b43fbf326299becc09cf035adb26aec1
font_01_sfnt_off0000ed08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED08 10600 bytes
SHA-256: f5e2facd662de8b744e11be41335dcf3c9408a079ba69d705048158bb07b4ced