Malicious PDF — malware analysis report

Static analysis result for SHA-256 47a2a88f5f07f828…

MALICIOUS

PDF

67.0 KB Created: 2021-02-12 01:52:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 815c0fadec659cf99e387cf929b64423 SHA-1: 7dab2a8e8e00c9149613c64d6291b9eb80f65523 SHA-256: 47a2a88f5f07f82873adaac03a853746d429877ee73391d69625c879de748664
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://seumenha.ru/wix?keyword=dream+maker+spa+troubleshooting PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4482020/normal_6000b20742abe.pdfIn PDF document text
    • http://takovod.66ghz.com/firefox_browser_pc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4527164/normal_5ffe487a2db93.pdfIn PDF document text
    • http://nomanodix.iblogger.org/28056028493.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365646/normal_5fece595bed5e.pdfIn PDF document text
    • http://jodopafipunew.22web.org/all_eyez_on_me_movie_3gp.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499958/normal_5fc9cf273ebdf.pdfIn PDF document text
    • http://nunegotopexipo.iblogger.org/79763064010.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416502/normal_5fcf4cd96e8a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455396/normal_60163e1200252.pdfIn PDF document text
    • http://gegejobusi.22web.org/pokawukaletetewodo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388612/normal_5fdc088066546.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413235/normal_5fdde75bf39bd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rusavuwirajul.rf.gd/18029349847.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/lesimojese.pdfIn PDF document text
    • http://dezoruxeg.epizy.com/85751086101.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_off0000caa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAA7 5436 bytes
SHA-256: 3d49fe85cfb37620b2472be414045769f2043a8575550d335b2ef88ccc3e3660
font_01_sfnt_off0000dcfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCFC 9896 bytes
SHA-256: bcf097d6bf36e3152392b1c45a3c8edf2a76ef83216b836f54ee62f1fd336a8e