Malicious PDF — malware analysis report

Static analysis result for SHA-256 15d082fdfb21d5f8…

MALICIOUS

PDF

65.2 KB Created: 2021-01-20 02:33:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f4bdac7b634b583c0d468f9d1adf1f16 SHA-1: 9aabd20d9d613e8b3bbe0428cdf719c637518bda SHA-256: 15d082fdfb21d5f8d02c6e9a5ab59d68ddbe6cd972f7744b350f45433da11156
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://trafffe.ru/123?utm_term=steel+truss+connection+details+dwg PDF link annotation
    • https://cdn.sqhk.co/nejajevafode/1web0de/39464021621.pdfIn PDF document text
    • https://cdn.sqhk.co/fejisedetu/HnJjggE/vupix.pdfIn PDF document text
    • https://cdn.sqhk.co/ganidabizi/aKbGjhJ/wedding_cake_decorating_games.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470232/normal_6003432c32c30.pdfIn PDF document text
    • http://puliliraforuwu.22web.org/f_c_b_full_form.pdfIn PDF document text
    • http://lefuduzitenazig.22web.org/sixixam.pdfIn PDF document text
    • http://zakofuta.66ghz.com/rubajo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nikavavufuxirel.epizy.com/97305452762.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/worthy_of_it_all_chords_g.pdfIn PDF document text
    • https://s3.amazonaws.com/wejuvono/34843463686.pdfIn PDF document text
    • http://zenujasope.epizy.com/call_of_duty_mobile_apk_obb_rexdl.pdfIn PDF document text
    • https://s3.amazonaws.com/figidireki/butozo.pdfIn PDF document text
    • https://s3.amazonaws.com/pujirageg/litisilez.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/gojezude.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/juego_ajedrez_online_android.pdfIn PDF document text
    • http://gavuzolu.epizy.com/71366228215.pdfIn PDF document text
    • http://tidomag.epizy.com/17775749505.pdfIn PDF document text
    • http://veguxakafopuvix.epizy.com/dawexopur.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_off0000c486.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC486 5304 bytes
SHA-256: 06105fe70238191de21204c6a1ab7e220df244e352539eef3c9d7aebbd2b1da8
font_01_sfnt_off0000d6aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6AA 9816 bytes
SHA-256: 4da9571ab2499d18c00af61c3d4d255d6285bb3c10b7e7661241203bb0bc1062