Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbfd89dc209fcd50…

MALICIOUS

PDF

72.4 KB Created: 2021-03-02 21:57:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6ce6138724c8eef8ecf1f16754dae252 SHA-1: b1c599f365c9d5f34bd6bc6f4f20e87063d8fe0b SHA-256: dbfd89dc209fcd50ca4e3be67cb68d75c201563ab8a3afe1c754d4b486aee936
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://fokemale.ru/wix?keyword=leadership+and+management+theory+and+practice+7th+edition+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4409092/normal_5fdfc7cd2188e.pdfIn PDF document text
    • http://slimitalia.space/kedasazifavepidnmbyz.pdfIn PDF document text
    • http://xesapuwax.mywebcommunity.org/doximisibaduxusiwu.pdfIn PDF document text
    • http://bagajuz.iblogger.org/69230929024.pdfIn PDF document text
    • http://lirinevewafa.mypressonline.com/pagolexiwufinugopamomafa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469370/normal_603177fc0d75a.pdfIn PDF document text
    • http://sevowina.medianewsonline.com/51783482912.pdfIn PDF document text
    • http://jokidinavefo.22web.org/elite_dangerous_mining_guide_4._0.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/jalasilunaz/instrumentation_tools_pro_apk.pdfIn PDF document text
    • http://sobikunukozi.rf.gd/negative_effects_of_water_pollution.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/matrix_algebra_cheat_sheet.pdfIn PDF document text
    • http://wawaxujogoned.rf.gd/capture_screen_application_android.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/best_performing_publicly_traded_reits.pdfIn PDF document text
    • http://vidugozu.atwebpages.com/what_is_the_best_samsonite_luggage_to_buy.pdfIn PDF document text
    • http://suriworito.rf.gd/mematovi.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/fortigate_30e_setup_guide.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_off0000ddc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC2 5660 bytes
SHA-256: 3a0ee9ec2888eb88a83d105f52c746c7df5d50841cade27268bd295d944a0964
font_01_sfnt_off0000f0f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0F3 10196 bytes
SHA-256: 96b069aae8aee2bbd53e26b0865c51c39afa4e4167a2e919f212cc942fd2b6ca