Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bd3e99baab81ef6…

MALICIOUS

PDF

69.0 KB Created: 2021-02-26 23:15:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7fbaf465e658fd2e6c9909481ae6437a SHA-1: a054cbe9fc565349bfe1d49cff54c3dd6c1676d2 SHA-256: 9bd3e99baab81ef62077868a9984035a8fc8e586aad1432659fa379702f18e6d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://mezovuduw.ru/award?keyword=how+to+win+blackjack+online+for+money PDF link annotation
    • https://cdn.sqhk.co/wuvupalib/hj1LOl5/single_red_rose_tattoo_meaning.pdfIn PDF document text
    • https://xelopapet.weebly.com/uploads/1/3/0/7/130775154/3952194.pdfIn PDF document text
    • https://cdn.sqhk.co/jeporikate/aQiiX1R/the_walking_dead_new_episode.pdfIn PDF document text
    • http://sokolov.fun/27397341609rrhqs.pdfIn PDF document text
    • https://letotanuvimipe.weebly.com/uploads/1/3/4/5/134598603/wibaf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lowadof.epizy.com/two_week_look_ahead_template_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/wuviwekitigopofeba.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/slope_math_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/zevutebulaworel/ballast_tank_inspection_report_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/how_to_replace_a_lower_water_heater_element.pdfIn PDF document text
    • https://s3.amazonaws.com/gowupuzokowuxes/77746864146.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/behavioral_therapy_autism.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_off0000d2f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2F8 5284 bytes
SHA-256: 379f7af9ab976a1c8b67f019cfe2b3392868a8c56a8e1411674a2970605df7dc
font_01_sfnt_off0000e4fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4FE 10092 bytes
SHA-256: c29303961736eb163251985aa8a3e974051ede7309f666e9b1d83e239893e325