Malicious PDF — malware analysis report

Static analysis result for SHA-256 17371708555d74ce…

MALICIOUS

PDF

69.7 KB Created: 2021-02-27 00:09:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d008c01a62c8e85a2280d06532b9c804 SHA-1: f9690a6c9eaa241c09a1a01778268986a663dec7 SHA-256: 17371708555d74ce88a30570fe03da93ff91686bbf581eaeec6f29541fcd3dbb
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/award?keyword=what+are+the+12+steps+for+alcoholics+anonymous PDF link annotation
    • http://jemulobapamiwu.mywebcommunity.org/44319043485.pdfIn PDF document text
    • https://cdn.sqhk.co/jivomawufem/6dhjaRg/nuts_and_bolts_hardware_lexington_missouri.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496165/normal_5fd339b8e2597.pdfIn PDF document text
    • https://cdn.sqhk.co/kasavakujosi/Eeha7id/gexawuluzezop.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480889/normal_6001f64143ca0.pdfIn PDF document text
    • http://lenuvivureropi.scienceontheweb.net/why_wont_my_dvd_player_make_sound.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/xanunafojuloki/free_ancient_scroll_powerpoint_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/sinarikagaruxine.pdfIn PDF document text
    • https://s3.amazonaws.com/gedexim/bissell_power_steamer_proheat_plus_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/bazuraf.pdfIn PDF document text
    • https://s3.amazonaws.com/fexuror/58690821531.pdfIn PDF document text
    • https://s3.amazonaws.com/bikikanafopavu/sha256_certificate_fingerprint_android.pdfIn PDF document text
    • http://bebovufuvuji.myartsonline.com/tutorialspoint_asp.net_core.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_off0000d45f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD45F 5556 bytes
SHA-256: 58d75f70306611fb0275f938dc27c2e52cd1c549896b8c170140c3b6f48a3ca3
font_01_sfnt_off0000e735.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE735 10160 bytes
SHA-256: 63312b343d64d573a401b6aaee763d2698d1e44f682cc6342a67e25b594cbf9e