Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fd5d8e1dde1ffea…

MALICIOUS

PDF

68.1 KB Created: 2021-02-26 05:10:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 49143315afc4e7fc3ef3632031a15583 SHA-1: 0b0607b28b1834cacaacaf3b77c48fd141ee7535 SHA-256: 4fd5d8e1dde1ffea5f21ad1e4fd1cb8e06960890631a04c0969d7c5f9b4a68a5
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://maypoin.ru/wix?keyword=inmate+lookup+tool PDF link annotation
    • http://pefiworawodud.mypressonline.com/fujifilm_xp70_review.pdfIn PDF document text
    • http://fejoromawefobo.22web.org/12322213279.pdfIn PDF document text
    • http://kvrovk.xyz/2000_ford_ranger_xl_specs8r6ap.pdfIn PDF document text
    • http://rawoxaxevog.mygamesonline.org/mecanica_vectorial_para_ingenieros_estatica_8_edicion_descargar.pdfIn PDF document text
    • https://fofifiso.weebly.com/uploads/1/3/4/6/134613093/3458085.pdfIn PDF document text
    • https://vorupegesozuzow.weebly.com/uploads/1/3/1/4/131453293/b279272020a72c.pdfIn PDF document text
    • https://risegexof.weebly.com/uploads/1/3/4/6/134661868/wijutomalado_wafozuxedewone_gawolutoj.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/padosumifubobo/1051462200.pdfIn PDF document text
    • https://s3.amazonaws.com/pirosisob/drucker_managing_oneself_hbr.pdfIn PDF document text
    • https://s3.amazonaws.com/fedojigudaj/360_panorama_camera_app_android.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/sumil.pdfIn PDF document text
    • http://fuvarijes.atwebpages.com/913889124.pdfIn PDF document text
    • http://dujisuga.epizy.com/meterpreter_commands_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/bafuxotatukopubabumivotig.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/linksys_ea4500_setup_as_access_point.pdfIn PDF document text
    • https://s3.amazonaws.com/dubiditiginowo/groups_of_animals_word_search_pro_answers.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_off0000d16e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD16E 4692 bytes
SHA-256: 953c76027c5e80c1a580c5537756c36d860aae11df140d0e1dae5a03150acab4
font_01_sfnt_off0000e14e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE14E 10016 bytes
SHA-256: 7e1bad3df6ee35f7efb41e135a8edf1ab462dd27881a78c60496bf92c483e7cd