Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0a29d617b2626c8…

MALICIOUS

PDF

74.8 KB Created: 2021-02-28 19:46:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 77c3e137a663b77b08a10558b185db8d SHA-1: db4830ed73947f40ffdd192cf55c71cb245ae367 SHA-256: e0a29d617b2626c8395451bfb5ad0cc7f84a47dbc61a8632334f010dfe44a80f
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/strik?utm_term=what+is+a+manifold+differential+pressure+sensor PDF link annotation
    • http://immortal-sho.club/savage_stevens_320_security_reviewvifz3.pdfIn PDF document text
    • http://zememor.sportsontheweb.net/29835679809.pdfIn PDF document text
    • http://xojuxelase.medianewsonline.com/87273497961.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451231/normal_5fc6a22c00cdf.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/migivewuwe/fezomumebo.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/wikevir.pdfIn PDF document text
    • http://nokejufesuw.atwebpages.com/diary_of_a_wimpy_kid_old_school_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/appvn_latest_version_apk_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/wurivuve/logo_quiz_answers_level_44.pdfIn PDF document text
    • https://s3.amazonaws.com/bisazabe/9802618993.pdfIn PDF document text
    • https://s3.amazonaws.com/jevelel/lexical_categories.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/15095392694.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/kukatudelegozekirekelix.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/7146445762.pdfIn PDF document text
    • https://s3.amazonaws.com/retisovojor/how_are_newtons_laws_of_motion_used_in_everyday_life.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_off0000e9b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B2 5292 bytes
SHA-256: 6b1f163ce1a7b907b7633723eb794606b67c293a25a59f08f932c366e1757ccb
font_01_sfnt_off0000fb93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB93 10136 bytes
SHA-256: f9c180dbde6942dc8f5fb6b63cbc98d4c01e0648c58a4aea699c94c0f36e21f0