Malicious PDF — malware analysis report

Static analysis result for SHA-256 987611790698cfe7…

MALICIOUS

PDF

70.7 KB Created: 2021-02-15 15:38:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 2be84d31e3cb8d537e9f69b91f1c5835 SHA-1: aa5e3647ff64caa0f0e983c6577402cb9fa230ef SHA-256: 987611790698cfe728150f31bde3469b5e14cfd3332af3aee9a86f765d58f963
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wix?keyword=nra+basic+pistol+course+exam+answers PDF link annotation
    • http://secret-empire.ru/58449570782ebmmt.pdfIn PDF document text
    • http://itawegan.space/historia_de_espaa_2_bachillerato_anwpay6.pdfIn PDF document text
    • http://mailedflkf.site/75049038851gtlu.pdfIn PDF document text
    • http://gamedv.design/sarutejilufijaxiza4ib.pdfIn PDF document text
    • https://cdn.sqhk.co/jozojijejip/egfijew/9614799252.pdfIn PDF document text
    • http://lazadacostumercenter.com/innovation_in_the_construction_industrykj69q.pdfIn PDF document text
    • http://requiredjokblog.com/tissot_1853_touch_manualbb8f6.pdfIn PDF document text
    • http://bahis-sikayet.com/wakobexadutivusubepa9ajj7.pdfIn PDF document text
    • http://legko.travel/vebibinifasempeyl.pdfIn PDF document text
    • http://ek-arenda.ru/turkey_hill_tripolitan_ice_cream_flavorsf33q1.pdfIn PDF document text
    • http://idealslim-ordina.site/79423575837geju6.pdfIn PDF document text
    • http://svc.edu/nra_pistol_inIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tixeligufokup/android_10_for_note_8.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/itunes_for_android_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/melarugufove.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/logical_fallacies_examples_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/converging_and_diverging_lenses_worksheet_tes.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/91863098642.pdfIn PDF document text
    • https://s3.amazonaws.com/vipinib/99467203471.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_off0000d693.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD693 5348 bytes
SHA-256: 7f13614d2d37dd4fc0774e04ae861005bd09ed2e6e536c6153651da3edd7d468
font_01_sfnt_off0000e8be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8BE 10812 bytes
SHA-256: 476ae39c98437997f790f8fada5819f6fa17bb259b1f361ed17fe19a46da6462