Malicious PDF — malware analysis report

Static analysis result for SHA-256 8babad536e3f5cec…

MALICIOUS

PDF

72.8 KB Created: 2021-02-16 13:48:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c4cbb1f08ce9143a2a97a3930cd374aa SHA-1: 6ad8f902a203675326afcde43a75d710b2545471 SHA-256: 8babad536e3f5cecdd6e1291636520f40d6b3aa1763549e5c45ddfc039ebea90
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://seumenha.ru/wix?keyword=download+boom+beach+mod+apk+2019 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4458621/normal_6028251f2ec39.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454988/normal_5fd61353e85ad.pdfIn PDF document text
    • https://cdn.sqhk.co/lewikokezina/fmyo1gh/42155329588.pdfIn PDF document text
    • http://7lessons.space/certificat_de_cession_de_vhicule_allemands58mk.pdfIn PDF document text
    • https://cdn.sqhk.co/nedupugifuka/MNjfhcL/bluffton_sc_restaurants_that_deliver.pdfIn PDF document text
    • https://cdn.sqhk.co/lakekomum/1E0sDSH/49544752611.pdfIn PDF document text
    • https://cdn.sqhk.co/rajexizeba/Sjhr1ii/22345590760.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://valebuwevunav.epizy.com/11084766203.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/19754947015.pdfIn PDF document text
    • https://s3.amazonaws.com/gavobawum/zamagav.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/folder_template_sharepoint_online.pdfIn PDF document text
    • http://muropep.epizy.com/loxezegiwuwuko.pdfIn PDF document text
    • http://pibusobi.epizy.com/vidmate_er_apps_video.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_off0000de39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE39 5816 bytes
SHA-256: fd0fa28bbb0ea07591f0bfe7c1036ac113738deef2319218392c2b2046e53bcc
font_01_sfnt_off0000f1fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1FB 10632 bytes
SHA-256: 849a4c0f071dfad8f5d65bdc632e23abee0f86ad2ee41ce5d4de92876df57f1b