Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d3a0d68d7da6618…

MALICIOUS

PDF

63.8 KB Created: 2021-02-12 11:11:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f095e651a9ef346f64bcea9947040d7c SHA-1: 92fd77276e761f031149b1ba61c654dbd2c3ea3c SHA-256: 1d3a0d68d7da6618e6597710a992a83ff9c46290187dad236773b7d4cd1dca97
176 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
  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=grim%20grinning%20ghosts%20acapella%20sheet%20music PDF link annotation
    • http://xotizel.iblogger.org/jquery_accordion_examples_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443356/normal_6007b6cdc7561.pdfIn PDF document text
    • http://sodiwemewobigi.22web.org/lonufavodozobasug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484169/normal_5fd6018f4e27f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446035/normal_602098cae5f52.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/tanapilamaxi/38839996597.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/moment_format_to_utc_time.pdfIn PDF document text
    • http://tugojan.rf.gd/bedevilled_movie_480p.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/13650411438.pdfIn PDF document text
    • http://jefepar.rf.gd/fulitedekamud.pdfIn PDF document text
    • http://puligop.epizy.com/17736479604.pdfIn PDF document text
    • https://s3.amazonaws.com/gazivemon/29761231376.pdfIn PDF document text
    • http://didaduxazej.epizy.com/61465382006.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/angiotensin_ii_receptor_blockers.pdfIn PDF document text
    • https://s3.amazonaws.com/kafises/brothers_telugu_movie_songs_320kbps.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_off0000bafe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAFE 5376 bytes
SHA-256: 7bbe84410e70c34eab48589e5d119abd019f72454e95ae08fc0c2f405a5adfd8
font_01_sfnt_off0000cd21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD21 11008 bytes
SHA-256: 5460e2a6b04e57292e49157d8ddde77898eef8df32bb526d517bfa97c203aab5