Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f1d9689df8ee805…

MALICIOUS

PDF

72.1 KB Created: 2021-02-22 07:45:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 90c2fa44550979cb6d5c100af32240b9 SHA-1: aae8f4b66f4bf8237379899ec78fd39c982c87a6 SHA-256: 8f1d9689df8ee80555c196f8a92eb90a71a443b6711fb2c245e01bf4f110d1ad
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://maypoin.ru/wb?keyword=can%20you%20get%20games%20on%20a%20ti%2084%20plus PDF link annotation
    • http://muwilagugo.iblogger.org/rikebitinaje.pdfIn PDF document text
    • http://tekirivira.iblogger.org/66591352223.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416131/normal_6005be5a4c9d2.pdfIn PDF document text
    • https://cdn.sqhk.co/fanoxozowupe/gcxawgc/harkins_theatres_movie_times_park_west.pdfIn PDF document text
    • https://cdn.sqhk.co/lopumilekana/c2ibge4/hurricane_superhero_wind_tornado_vegas_mafia_mod_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451352/normal_5fef17152eef4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426280/normal_5fc97ab76bf17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416661/normal_5fd7d519525c1.pdfIn PDF document text
    • http://wibimozuj.22web.org/vuzuduzigizemupadibamij.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498994/normal_5fcbcfa7bb51a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408601/normal_6030ebfea61f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455659/normal_5fefe3c0bfe89.pdfIn PDF document text
    • http://nefuwumimo.iblogger.org/65096975815.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459466/normal_5fe9df515c8be.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458394/normal_6029707a0a54a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nasarijexu.epizy.com/bittorrent_pro_crack.pdfIn PDF document text
    • http://fujuresaw.epizy.com/his_first_flight_class_10_answers.pdfIn PDF document text
    • http://sepimenixinu.epizy.com/upload_gif_to_instagram_android.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_off0000dc13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC13 5332 bytes
SHA-256: a3382565d412bc8674d6744a9ac4326acf29e74b36aa64165e96fc9d8ace23f4
font_01_sfnt_off0000ee39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE39 10892 bytes
SHA-256: 577df65b34008f36db31bd65e5c31b72bb8c770b1c4ee9c28f5f44e2ce40dd89