Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e34f3d1d8c28ecd…

MALICIOUS

PDF

71.0 KB Created: 2021-02-11 19:43:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a5bd73734b53444c609107485e141458 SHA-1: b597f707cbb7ca8a80e2305526c0caba492c2d70 SHA-256: 7e34f3d1d8c28ecd2e13f1cb5b96462644009e0c3e07f1db494f161797adf5f9
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://jottigo.ru/wix?keyword=mortal+kombat+x+free+souls+generator PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367667/normal_5fd2eeebb3801.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411229/normal_60146cc7b4906.pdfIn PDF document text
    • http://zatuzosej.iblogger.org/dapegasoxasobitivagaxenik.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447437/normal_601e6f0898dcd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445337/normal_5fd65a439081a.pdfIn PDF document text
    • http://gewarum.66ghz.com/menigiwozuna.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://gametasixomuk.epizy.com/iphone_6s_camera_raw_format.pdfIn PDF document text
    • http://dutuzapeka.rf.gd/69104707956.pdfIn PDF document text
    • https://s3.amazonaws.com/xenavuxa/30960115266.pdfIn PDF document text
    • https://s3.amazonaws.com/ratixifo/28636821758.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/nainital_tour_guide.pdfIn PDF document text
    • http://lilivuxaja.rf.gd/mexibasasolo.pdfIn PDF document text
    • http://nagivozuzosawax.rf.gd/centrify_express_ubuntu.pdfIn PDF document text
    • http://kosisat.epizy.com/69062413850.pdfIn PDF document text
    • https://s3.amazonaws.com/wizitifowubux/app_to_annotate_ipad.pdfIn PDF document text
    • https://s3.amazonaws.com/genukopapovixo/chernobyl_episode_4_subtitles.pdfIn PDF document text
    • http://femodizabofowu.epizy.com/compound_interest_word_problems_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/42413475281.pdfIn PDF document text
    • http://turegipamikum.epizy.com/gewizutiferuroduzudowofez.pdfIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/cinema_free_apk_for_roku.pdfIn PDF document text
    • https://s3.amazonaws.com/bomupi/39786270980.pdfIn PDF document text
    • http://vosafaw.rf.gd/definition_of_post_harvest_technology.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cbfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBFD 5200 bytes
SHA-256: c2bb09a318f17f561d05cded3b51e4626c7d3409c80cd421ca5e3ee334fa5f2a
font_01_sfnt_off0000dda8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDA8 10156 bytes
SHA-256: e166959e6f71b347dfc5f1163e4089431b50f43ac28b6d5fd66a50f1b5bd4d41
font_02_sfnt_off0001007a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1007A 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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