Malicious PDF — malware analysis report

Static analysis result for SHA-256 82a5f9af0ff1302b…

MALICIOUS

PDF

70.9 KB Created: 2021-03-01 19:25:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 985fd6b8bca2b258a5a92a8b6217be2a SHA-1: 80a91572857c53e7a6a0e4c434e1d4eddc1dde4d SHA-256: 82a5f9af0ff1302b4f9d661d947196a8b6f32abaed2e58d4f51ef7b0d7995973
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://dugedepap.ru/award?keyword=2005+jeep+grand+cherokee+for+sale+cargurus PDF link annotation
    • https://cdn.sqhk.co/rupomotiz/iajcYWx/ghost_blasters_2002.pdfIn PDF document text
    • http://gasorutika.iblogger.org/does_xfinity_have_whole_home_dvr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410013/normal_603267fc538da.pdfIn PDF document text
    • http://dimifepovez.22web.org/lebafuxafevugufiken.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420230/normal_5fca08d9478f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428335/normal_600d9faab4496.pdfIn PDF document text
    • http://komaxinatobofe.medianewsonline.com/what_is_the_opposite_of_inverse.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427287/normal_603130e1b090b.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/jazuravazaguz/bgp_path_selection_cheat_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/veniwefen.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/alcatel_flip_phone_2051x_manual.pdfIn PDF document text
    • http://sapifux.epizy.com/55526169762.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/whatsapp_wedding_invitation_card_template_psd.pdfIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/gobojazasavire.pdfIn PDF document text
    • https://s3.amazonaws.com/pigolo/blocking_restricted_numbers_on_android.pdfIn PDF document text
    • http://beduxuluwuniva.rf.gd/81571629864.pdfIn PDF document text
    • http://guxejusoselota.myartsonline.com/sistema_endocrino_que_es.pdfIn PDF document text
    • https://s3.amazonaws.com/futamo/information_meaning_in_gujarati.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_off0000d789.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD789 5860 bytes
SHA-256: 75dc89d55ee9661ba5681f1580db229e32f8e4c790523d6c98ea0c66c6c54783
font_01_sfnt_off0000eb84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB84 10196 bytes
SHA-256: 3535fbfbdd55356fba6e983a55609c6b9426bb15244c313ba1fd8cdd9e6a6fad