Malicious PDF — malware analysis report

Static analysis result for SHA-256 0760adbd2f19ec26…

MALICIOUS

PDF

67.4 KB Created: 2021-02-21 12:59:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 5127be131dd329e0db15e4ca57e3c552 SHA-1: 5a43987476b61d749cb548f510cf2f1625eba680 SHA-256: 0760adbd2f19ec2639b923ac84c23628b01ecf783df7e30bb090c02df3b74228
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wix?keyword=a+pocket+style+manual+5th+edition PDF link annotation
    • https://cdn.sqhk.co/patemugimej/fOCWih2/59672858966.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497638/normal_601fefaa9e28a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489042/normal_6013c9e47a7a6.pdfIn PDF document text
    • http://pemutoguxo.66ghz.com/new_assamese_latest_song_2019.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488346/normal_5ffb897247140.pdfIn PDF document text
    • https://cdn.sqhk.co/tefivezik/hgPPNjf/59401439693.pdfIn PDF document text
    • https://cdn.sqhk.co/tofatuxurejo/jjhjjaQ/58640433501.pdfIn PDF document text
    • https://cdn.sqhk.co/dofexoxev/yhiLChf/coloring_pages_online_for_adults_free.pdfIn PDF document text
    • https://cdn.sqhk.co/tovipovo/aRzjjhc/50495129383.pdfIn PDF document text
    • https://cdn.sqhk.co/zarifabidit/cibmljf/.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419847/normal_602403dd1dcd0.pdfIn PDF document text
    • https://cdn.sqhk.co/kekoseni/jcMigeH/63010459183.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://vamudijikepefos.rf.gd/watekexuvugiwijalodedugol.pdfIn PDF document text
    • https://s3.amazonaws.com/nopomewegobij/technical_report_sample_format.pdfIn PDF document text
    • https://s3.amazonaws.com/wuwabobujasivor/limufekotezeworo.pdfIn PDF document text
    • https://s3.amazonaws.com/xupovobejanam/74899066765.pdfIn PDF document text
    • https://s3.amazonaws.com/jarawaxanivu/allu_arjun_videos_sharechat.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000be31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE31 5380 bytes
SHA-256: 3357d0999e810c2412466fbe7d7e3115400fd50d636f7675b4864b98af9353cc
font_01_sfnt_off0000d050.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD050 10008 bytes
SHA-256: dcc87c3b7cece107a0a9e1bbbc6a842e965401ef93e2c3078879558b549b752f
font_02_sfnt_off0000f2a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A0 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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