Malicious PDF — malware analysis report

Static analysis result for SHA-256 665bd2667e78794b…

MALICIOUS

PDF

68.5 KB Created: 2021-02-23 02:53:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 06614891274bdd12d43f4599c1602328 SHA-1: 83b1acc9bb1878c6363184d777ae323780bc20d5 SHA-256: 665bd2667e78794b92c38f500dfb2d794ba39f70ecb8c9df7837c0ce7ec0fe3a
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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/wix?keyword=financial+policies+and+procedures+manual+sample PDF link annotation
    • https://cdn.sqhk.co/xavaxonad/kgh7Aid/stadia_discount_code.pdfIn PDF document text
    • https://cdn.sqhk.co/gizulakofo/geQgeic/new_hd_movies_free_download_2020.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405654/normal_5fcadfa9cc1b6.pdfIn PDF document text
    • https://cdn.sqhk.co/kixarozikej/zja1tjV/city_sightseeing_berlin_promo_code.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375531/normal_5fdfcc1419835.pdfIn PDF document text
    • https://cdn.sqhk.co/nogorodizet/ahdhdW9/sazudijisiberavumalev.pdfIn PDF document text
    • https://cdn.sqhk.co/zolilogifuxe/D1HuEhg/badland_winch_wiring_diagram.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375095/normal_6009796b3243a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490001/normal_5fee8c7aa0fd1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374700/normal_5ff7198f53a73.pdfIn PDF document text
    • http://istra-backwater.ru/56833844080k0ifv.pdfIn PDF document text
    • https://cdn.sqhk.co/givogaduta/Bibjen1/rawusukuturivogobopuze.pdfIn PDF document text
    • https://cdn.sqhk.co/jigitovewuk/hgijdje/fowerepo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468253/normal_5fd91145245ff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494657/normal_5ff6526e7ee3a.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/jovekus/aktu_anti_ragging_format.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/footloose_musical_piano_score.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_off0000cf94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF94 5176 bytes
SHA-256: ee753b2ff27a31379e954863c083ccf8c7544aa32796a83e39b5d25d629a16b8
font_01_sfnt_off0000e115.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE115 10392 bytes
SHA-256: 27b1606c94e91925ed1c253d3cb7119e9d486f7f17df4da1679ec7becb6661e2