Malicious PDF — malware analysis report

Static analysis result for SHA-256 630ebbea3fe76194…

MALICIOUS

PDF

89.4 KB Created: 2020-11-20 02:45:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 6509d1249063be7dd963137553190dc7 SHA-1: ae4b79e6201de672c2bafb0fbb845a4b3fe0071e SHA-256: 630ebbea3fe7619409cb2c4d679adc4e1de5bc3c290de39cc988e076253ef397
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://trafffi.ru/strik?utm_term=tr%25C3%25B2+ch%25C6%25A1i+t%25C3%25AD+s%25E1%25BB%25ADu+d%25E1%25BA%25A7n+m%25C3%25A3o PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4451377/normal_5fa619810d79c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495393/normal_5fabe2617ff72.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1109957.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/kubokujada-kijezubat-muxin.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446395/normal_5fa439cb3a1eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366408/normal_5fa2bde54e212.pdfIn PDF document text
    • https://xemupawiked.weebly.com/uploads/1/3/4/3/134321325/wedekizesexexakamuxa.pdfIn PDF document text
    • https://fexogobavube.weebly.com/uploads/1/3/4/6/134639764/vujoweru_deromi_pigifofa_laxefixaveja.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384035/normal_5f980ad34313a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413702/normal_5fa7a87a5af10.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/wunupalezozerud/18829668140.pdfIn PDF document text
    • https://s3.amazonaws.com/vonusirukete/idaho_fish_and_game_harvest_report_2018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5688e5b-27eb-4b13-a8e1-ba7dbbfab1b8/cual_es_la_oracion_de_fe_de_los_cristianos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e50dad5e-e817-4fa4-895a-532a6678f811/befumexixexoraxupugabav.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c9f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9F9 6744 bytes
SHA-256: 127b44c9f93874c96d25eb7ddc4688780d8877ce931cf296363fb5748d8d514b
font_01_sfnt_off0000dae0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAE0 5984 bytes
SHA-256: 9f1006e1582f589f5745bb96c26cf6cff4bce53d2629dad45fcdd54aa746ff36
font_02_sfnt_off0000ee09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE09 9448 bytes
SHA-256: bd996bcae14f43352fbb3ac5dceceb77ccf9d396827dd02f0d654d2e0377bd7a
font_03_sfnt_off00010c1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C1D 23740 bytes
SHA-256: 1cea664b008c813ce33093515d8b7bc6482900e1d52990d74ea5a920bce66d32
font_04_sfnt_off0001407d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1407D 16208 bytes
SHA-256: c691c2dc236ff1c3149f8178f30dcb30456d959af2bd230901b395ad55359d31

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