Malicious PDF — malware analysis report

Static analysis result for SHA-256 38364f0ab38fec8e…

MALICIOUS

PDF

66.2 KB Created: 2021-01-05 13:58:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: f8ea8e4dd5f38fed70b4cac984db61a7 SHA-1: b91b7b322a6dca2744e362c73b6ea9e43d1db6db SHA-256: 38364f0ab38fec8e77627d6ebb8d9191d9bf1749eeeb51b1043ea9147f962650
196 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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffnew.ru/aws?utm_term=christmas+opening+hours+sign+template+free PDF link annotation
    • https://rugazodexozapef.weebly.com/uploads/1/3/4/4/134480570/tozurama-wopom-xorujif-rizate.pdfIn PDF document text
    • https://ladeletoleworuw.weebly.com/uploads/1/3/4/7/134712388/1229022.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/8925184.pdfIn PDF document text
    • https://luketekovagitor.weebly.com/uploads/1/3/4/2/134236109/6162a358a769.pdfIn PDF document text
    • https://pepisukuwen.weebly.com/uploads/1/3/1/6/131606293/569218d1.pdfIn PDF document text
    • https://sufudoni.weebly.com/uploads/1/3/4/8/134853368/5258016.pdfIn PDF document text
    • https://cdn.sqhk.co/jofutagi/gfieMhf/survival_island_full_free_download.pdfIn PDF document text
    • https://kibugisire.weebly.com/uploads/1/3/4/0/134018652/dugosim_kofamafat_juvim.pdfIn PDF document text
    • https://cdn.sqhk.co/dakuwuwuzije/gsNhetc/game_recorder_not_working_windows_10.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/farezelof/being_nikki_read_online.pdfIn PDF document text
    • https://s3.amazonaws.com/netinuwa/pudovuxomupezekorunifafi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25aea672-4ad4-4ff1-9506-d6cff80606c3/8924058952.pdfIn PDF document text
    • https://s3.amazonaws.com/xutomoxu/agenda_templates_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e20efdc-6534-4c65-b2b5-57265d43169e/mi_primera_encarta_online_jugar_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/nuxivo.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_off0000c5ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5EE 5220 bytes
SHA-256: 9b2f8f2dc59e563b74a652c6b161ec6012d7af99b353c6b05a394b1e0e4450b0
font_01_sfnt_off0000d780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD780 10540 bytes
SHA-256: 66aefc92549eefee4c00d988c11dc18bc932d85930713d0ea466f7c7f48af45a

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