Malicious PDF — malware analysis report

Static analysis result for SHA-256 40dd7e8f46fcf7c2…

MALICIOUS

PDF

73.6 KB Created: 2021-02-22 00:46:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 23826725f456a42794695ead861b3dba SHA-1: b58de2f5f2718bf1d2e20cb4126e60807a424933 SHA-256: 40dd7e8f46fcf7c2c3891eca71ee099b881733a70507457984bdc26cfcb4eeca
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://jottigo.ru/wb?keyword=how%20to%20start%20cross%20training PDF link annotation
    • http://reduslimitalia-oficial.site/47104751261j1a4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366398/normal_600a679b3377d.pdfIn PDF document text
    • https://cdn.sqhk.co/bidogefapo/dWgiajg/35789083341.pdfIn PDF document text
    • https://cdn.sqhk.co/wujodazera/gdgfeQE/hobby_lobby_hours_paris_texas.pdfIn PDF document text
    • https://cdn.sqhk.co/murajefovel/ddifeih/muwasotaxivavibalo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386091/normal_60329b1bb3785.pdfIn PDF document text
    • https://cdn.sqhk.co/vanewano/didwifI/mumirunajit.pdfIn PDF document text
    • http://vvvvvvvvvvvvvvvvvvvvvb.xyz/envision_florida_algebra_2_teaching_resourcesk4swu.pdfIn PDF document text
    • https://cdn.sqhk.co/wesaduleb/EEpieTs/paxixota.pdfIn PDF document text
    • https://cdn.sqhk.co/vumuwilaj/jbLYsuE/grey_tie_dye_hoodie_diy.pdfIn PDF document text
    • https://cdn.sqhk.co/gixelotopa/MX9jagj/dead_by_daylight_beginners_guide_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/kerodamajop/jgiaghM/stick_cricket_live_mod_apk_everything_unlocked.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460690/normal_5fe9954422734.pdfIn PDF document text
    • http://lnstagramoriginal.com/78015222500vmknn.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/nuruvapozixix/koxekukupavejemotuwose.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_off0000e49f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE49F 4988 bytes
SHA-256: 0209bcc7a00d1d38d280b8210e9190206bc6a953e3b6d4996c9787e17f71e6b4
font_01_sfnt_off0000f5b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B7 10604 bytes
SHA-256: fcba59d14686b5e9d6fbb3cfa6845c2446da0d6abd9979fa057535fd10c9edf6