Malicious PDF — malware analysis report

Static analysis result for SHA-256 425de9240390b2a0…

MALICIOUS

PDF

67.3 KB Created: 2021-02-09 22:46:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 804f1b62ba6ea2c45e54c517cd777df0 SHA-1: 2193d641806da01de4b7c5a8cc4496e7542fc30a SHA-256: 425de9240390b2a069eb09f0cfb2fef08b3fd4ffb1aa4f662efcef1306692bf6
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/aws?utm_term=bhojpuri+movie+video+mp4++2019 PDF link annotation
    • http://forpost-electrica.ru/46608135319qkw3b.pdfIn PDF document text
    • https://cdn.sqhk.co/vitozogog/yjjBkQQ/apk_my_talking_hank_mod.pdfIn PDF document text
    • http://shopsmmv.site/kekopofaxudenujosonabanalog57.pdfIn PDF document text
    • http://eglo.club/567226060011oyf8.pdfIn PDF document text
    • http://shopwithsale.website/6315410608lk31r.pdfIn PDF document text
    • https://cdn.sqhk.co/rabataxuvax/jakHDTO/cheapest_logitech_steering_wheel_for_xbox_one.pdfIn PDF document text
    • https://cdn.sqhk.co/mavozopofug/nidttlm/rinoton.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/kakekojezutok/tifol.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/88104004915.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/39321686429.pdfIn PDF document text
    • https://s3.amazonaws.com/jovekus/74460447493.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/gram_positive_bacteremia_treatment_guidelines.pdfIn PDF document text
    • http://pibunowawoxi.epizy.com/nicaragua_cdc_travel_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/amparo_indirecto_en_materia_laboral_formato.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/alcoholismo_en_adolescentes_causas_y_consecuencias.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_off0000cac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAC3 5536 bytes
SHA-256: c5a2ed2a7a590a17172a1d7a8c1cd3dde524aa52865b02ce0112e55850ee398f
font_01_sfnt_off0000dd8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD8A 10204 bytes
SHA-256: 4a845d9f278d0f48610be48b4f68804dd750b469ead7c03d9217299899eb347b