Malicious PDF — malware analysis report

Static analysis result for SHA-256 06ebdff3ceb57a50…

MALICIOUS

PDF

63.0 KB Created: 2021-02-14 17:16:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: ca5d0d1a54b98a79429d343b72f874a7 SHA-1: ca88bfb3f44ea55a55f39170e4677578db7a0719 SHA-256: 06ebdff3ceb57a50fe70717b3b5aff7b360c5515195d363a95d07088938e7737
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://seumenha.ru/wix?keyword=skmei+1163+manual PDF link annotation
    • https://vizodifoberesin.weebly.com/uploads/1/3/4/9/134900429/bumowogagurunigapewo.pdfIn PDF document text
    • http://ginutojuluxuvo.iblogger.org/estomatitis_aftosa_en_nios.pdfIn PDF document text
    • http://loxebosobudi.66ghz.com/futanebasujoxuburul.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475382/normal_5fd8fd4759622.pdfIn PDF document text
    • https://jefaganogebe.weebly.com/uploads/1/3/1/4/131437435/79ff1adfeb474c.pdfIn PDF document text
    • https://vuxulirupam.weebly.com/uploads/1/3/5/3/135346280/6920262.pdfIn PDF document text
    • https://towavakivuno.weebly.com/uploads/1/3/5/3/135318123/5842299.pdfIn PDF document text
    • https://vipegiwofavagob.weebly.com/uploads/1/3/5/3/135302795/6592150.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369185/normal_5fc7d43d7e3c9.pdfIn PDF document text
    • http://capridigi.com/lightroom_preset_xmp_to_lrtemplateyvbkt.pdfIn PDF document text
    • https://bemebedutor.weebly.com/uploads/1/3/4/6/134624352/murazo-rujonawemomeg-jokepotulafuv-babavuxiroter.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kamosos.epizy.com/70770331675.pdfIn PDF document text
    • http://legekiwogitevil.epizy.com/autumn_leaves_jazz_chords.pdfIn PDF document text
    • https://s3.amazonaws.com/pujinit/blowin_in_the_wind_flute_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/fajonubinomeder/whatsapp_watusi_duplicate.pdfIn PDF document text
    • https://s3.amazonaws.com/figidireki/32897768783.pdfIn PDF document text
    • https://s3.amazonaws.com/tipikaxe/71105136068.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_off0000bb2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB2A 5092 bytes
SHA-256: b5a8c5bd33ec14f6f10061d9fe2484031bf44efbf233551d31e390f45376876e
font_01_sfnt_off0000cc73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC73 10220 bytes
SHA-256: f2c6bbceecc42179dce35d4fb9fe8433539c14ab99a4a8eee30506cc8c675f5e