Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5106ec468145928…

MALICIOUS

PDF

73.5 KB Created: 2021-02-21 03:54:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 72600f7678565cf41656bba81cea9557 SHA-1: ffbfd5388eec0958f3f79d742692c666683f50ce SHA-256: d5106ec468145928b37dab94293d72f99afa0b29e3bb66fd697d181988b5bba9
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://baarspo.ru/wix?keyword=duke+of+weselton+quotes PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4376371/normal_5ff314157afc1.pdfIn PDF document text
    • http://pihodze.com/hebbal_bus_platform_number_in_majestic78a3d.pdfIn PDF document text
    • http://anyita.space/shadow_fight_3_mod_apk_unlimited_everything_and_max_level_20203it06.pdfIn PDF document text
    • http://1cats.space/mobile_charger_circuit_diagrame7in4.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/wujafivabipo/60420839129.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/samsung_j730g_firmware.pdfIn PDF document text
    • https://s3.amazonaws.com/pafexegud/android_get_assets_directory_path.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/pizad.pdfIn PDF document text
    • https://s3.amazonaws.com/sukobogixe/5496611679.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/62684610024.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/sebiwekasubisab.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/how_to_describe_a_sculpture_in_art_terms.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/jasper_report_subreport_example.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/almost_human_book.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/fupopulosowudosi.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_off0000e62c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE62C 4736 bytes
SHA-256: a98671b2c6670115fd6820c0b4fc5bc8e08688d808853fcdb8f6481ddc5878b6
font_01_sfnt_off0000f685.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF685 10208 bytes
SHA-256: 8fecd5d1c5e9330d8dfc278606ac86efcc2af2fa1f9d2525cab1d82e061075f6