Malicious PDF — malware analysis report

Static analysis result for SHA-256 14df0f413611352a…

MALICIOUS

PDF

76.0 KB Created: 2021-02-14 02:38:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3e3809e2291f39f635af022b74f79008 SHA-1: 29081a05172fe133ae5fd2acdf68cc03030aedd0 SHA-256: 14df0f413611352ae34ff0987232f9b6044de569e2600b26e0858e549aab5d4c
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=calcul+bulletin+de+paie+en+ligne+maroc In PDF document text
    • https://static.s123-cdn-static.com/uploads/4462368/normal_5ffa95fb54e02.pdfIn PDF document text
    • http://basiditdcf.space/ward_newsletter_bishopric_messagedf1fs.pdfIn PDF document text
    • https://cdn.sqhk.co/wikepijosipi/SiiRxrT/griswold_christmas_shirt_plus_size.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475866/normal_6003c714beb9d.pdfIn PDF document text
    • http://naturka.space/creative_destruction_playem4kk.pdfIn PDF document text
    • https://cdn.sqhk.co/manowipete/hfRha6Y/34390698895.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371248/normal_5feb89e2c8841.pdfIn PDF document text
    • https://cdn.sqhk.co/vemetafije/UsM2aic/spin_the_wheel_numbers_1-_25.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366340/normal_5ffd7b6444d89.pdfIn PDF document text
    • https://cdn.sqhk.co/polopomoset/WggzXyD/kizofevew.pdfIn PDF document text
    • https://cdn.sqhk.co/jujejorule/bxOjSjh/video_player_for_android_tv_download.pdfIn PDF document text
    • http://vulgargirls.fun/jezifitidaxikenoburode0qza3.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/zafirawit/b_ed_course_application_form_2019.pdfIn PDF document text
    • http://sidovarodefomi.rf.gd/49022592260.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/41734421244.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/potepudobarosuzexuv.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/vupitetevuruxu.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/splash_page_template_squarespace.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_off0000e8de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8DE 5260 bytes
SHA-256: e3053c5f54569608e3f73fd16a3f0e36e4cac2f0bb77acf33ff27089443834e1
font_01_sfnt_off0000faa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAA0 12256 bytes
SHA-256: 2eb2a97f0e01aab640af45e3933f5a47cfb5d55a514a8edb0654d14a4913a136

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