Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd6b30a91b2681c3…

MALICIOUS

PDF

64.8 KB Created: 2021-02-24 15:10:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8957e03ce9a13740282d6aa354f94233 SHA-1: 5aebc3c773841e617d1d3e3f79796956d5a3b62d SHA-256: cd6b30a91b2681c35714707206965a63bf43bd9588a254ac20512f275a833307
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://bologen.ru/wix?keyword=tomb+raider+underworld+trophy+list PDF link annotation
    • http://ig-verifiedsbadge.com/birdland_sheet_music34fsz.pdfIn PDF document text
    • https://cdn.sqhk.co/waxipefimafa/BRjevPQ/ar_effect_apk_xda.pdfIn PDF document text
    • http://crispyset.online/lopuberibetiminuv5didi.pdfIn PDF document text
    • https://cdn.sqhk.co/wupifufexix/hbiawgh/ziteguzinawotifelunom.pdfIn PDF document text
    • https://cdn.sqhk.co/tejilunuf/l3dOsjd/loner_definition_sociology.pdfIn PDF document text
    • http://wanebori.22web.org/18816442882.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/tojazudibumogab/yo_amo_san_pedro_de_la_cueva_videos.pdfIn PDF document text
    • https://s3.amazonaws.com/zafibimutadoti/26477380132.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/24208942100.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/ap_family_worksheets_for_kindergarten.pdfIn PDF document text
    • https://s3.amazonaws.com/bisegilupuf/gegagelinogor.pdfIn PDF document text
    • http://zisafaziga.epizy.com/nitrogeno_caracteristicas.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/55938619503.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/aspectjweaver_1._7._4.pdfIn PDF document text
    • http://zusewijoje.epizy.com/52595528999.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/video_presentation_script_template.pdfIn PDF document text
    • http://sipikoz.epizy.com/29888835981.pdfIn PDF document text
    • https://s3.amazonaws.com/bokofapig/bellini_digital_air_fryer_btdf950_manual.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_off0000be67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE67 5480 bytes
SHA-256: 8eb99a516a4f216e4ea59abea0a6353ae924b998ff4460a4307bb558e67db115
font_01_sfnt_off0000d0e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0E9 10444 bytes
SHA-256: 4e1999e87d28351306a3d8c2bba25935085924b5a0b9e1c6c9fc82efd78a19b3