Malicious PDF — malware analysis report

Static analysis result for SHA-256 ece995ee26d621bf…

MALICIOUS

PDF

65.5 KB Created: 2021-02-23 21:26:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e77a80879d618ce0194c07c0ce9c3107 SHA-1: fbcc635b19b89170ed0aee6898e89718e8940c40 SHA-256: ece995ee26d621bf23b1da5ddabf125c1d62704175c4a8774cbcba14ccba731a
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://druttle.ru/wix?keyword=states+of+matter+practice+worksheet+grade+1 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4415061/normal_5ff0ea80af95a.pdfIn PDF document text
    • http://3203epworthcres.com/causes_of_neonatal_sepsiswy7ej.pdfIn PDF document text
    • http://idealicait.website/red_white_blue_balloon_garlandolsas.pdfIn PDF document text
    • http://fivogudog.iblogger.org/36057786202.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/lepefi/75784782793.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/modern_indian_cuisine_menu.pdfIn PDF document text
    • https://s3.amazonaws.com/lazolu/moment_format_get_timezone.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/butebupuxuk.pdfIn PDF document text
    • https://s3.amazonaws.com/xaliwalufoguni/25237317343.pdfIn PDF document text
    • https://s3.amazonaws.com/rodakarugupoko/authentication_error_occurred_android_wifi_galaxy_s3.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/punjab_university_ba_bsc_challan_form.pdfIn PDF document text
    • https://s3.amazonaws.com/vavejijitatofu/44431089208.pdfIn PDF document text
    • http://jojerigexorow.epizy.com/74733880619.pdfIn PDF document text
    • http://vubixegigag.rf.gd/88851104181.pdfIn PDF document text
    • https://s3.amazonaws.com/napoledunadigo/que_significa_la_mision_de_una_empresa.pdfIn PDF document text
    • https://s3.amazonaws.com/bitajemisajoz/benosul.pdfIn PDF document text
    • http://mesitineka.rf.gd/allen_bradley_micrologix_1100_software_free.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_off0000c37f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC37F 5848 bytes
SHA-256: 753dc4f9c10b793d52ca7b29421178494fb7a1727244d8783bda284dca180aa3
font_01_sfnt_off0000d755.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD755 9836 bytes
SHA-256: 01d05ed74505fc2607816164d6b1032454af10f36113ad616cd56adebb55896c