Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfd07f9a705fb380…

MALICIOUS

PDF

70.4 KB Created: 2021-02-27 15:59:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e2af2dcdf77b7407baf4e6fef741561a SHA-1: f79566e80e9975ff74a989d9f9187fa404f93067 SHA-256: dfd07f9a705fb380e304ea53c3fd68d5cf8378e9b4ca2cb18fabb220317a646d
144 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://pelibifir.ru/wix?keyword=learn+to+fly+2+arcade+guide PDF link annotation
    • https://cdn.sqhk.co/vidikusupegu/xjgdhc4/4354032502.pdfIn PDF document text
    • http://formulamoney.top/jugufebabegiwawogikob8r3o.pdfIn PDF document text
    • http://ginumon.iblogger.org/telugu_chalo_dj_remix_songs.pdfIn PDF document text
    • http://videohost.space/world_population_aging_report_2018x14pd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459025/normal_5fe9636239881.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/falufusu/it_salary_in_pakistan.pdfIn PDF document text
    • http://xedovafimolodem.epizy.com/zotinigufenowutu.pdfIn PDF document text
    • http://nawulariwataxut.rf.gd/bsf_prayer_guide_for_acts.pdfIn PDF document text
    • http://jipowefata.epizy.com/creative_cloud_application_helpx.pdfIn PDF document text
    • http://dabixuri.rf.gd/villain_bengali_movie_all_ringtone.pdfIn PDF document text
    • http://renureva.epizy.com/bushfire_in_australia_information.pdfIn PDF document text
    • http://mubufelijora.epizy.com/android_business_card_scanner_to_outlook.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/galotasakojiju.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/pobasuranosesovoxew.pdfIn PDF document text
    • http://poluwusafoge.epizy.com/simple_email_contact_form_html.pdfIn PDF document text
    • https://s3.amazonaws.com/kewuxejikiwe/react_native_android_push_notification_icon.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_off0000d710.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD710 5184 bytes
SHA-256: e4cbcdef1882bc1e937d0f80be14555f4e73fd7a1bc680dff30563dacab3105c
font_01_sfnt_off0000e8d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D7 10448 bytes
SHA-256: 1b6383867da4a7cf176356fbf626640e8a23fe003fa219dba9e2c51a5d416962