Malicious PDF — malware analysis report

Static analysis result for SHA-256 493ad6d70f069bd5…

MALICIOUS

PDF

73.3 KB Created: 2021-02-03 01:41:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ea2ce6d3371e7b3a0ba0265c63ed4b8a SHA-1: 834d92ab579b94fc0c28808575d2ce5b1007a437 SHA-256: 493ad6d70f069bd5cdfa0700f0c4fc503a6a29ad24da383d151555ffc4e3bd61
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://maypoin.ru/aws?utm_term=map+of+australia+printable+template PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4413455/normal_5fe23ec10317f.pdfIn PDF document text
    • http://form-copyrightservices.com/water_marbling_fabric_with_acrylic_paintb493v.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379960/normal_600328ee0a46e.pdfIn PDF document text
    • https://cdn.sqhk.co/metusoteliza/jhdhdJU/fivipalumokuwafegilepo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371523/normal_600eae0159b3b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366014/normal_5ffde127a2429.pdfIn PDF document text
    • https://cdn.sqhk.co/businaxidare/vzhczxk/screen_video_recorder_apple.pdfIn PDF document text
    • https://cdn.sqhk.co/lupokuna/jiiYgh8/street_racing_3d_online_generator.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417030/normal_6003e73a70b32.pdfIn PDF document text
    • http://edarudost.online/the_crusades_through_arab_eyes00xqu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417216/normal_600f110dcf174.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/nuxulikiwab/79853382737.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/puzuzebogiruxenorisuvefal.pdfIn PDF document text
    • https://s3.amazonaws.com/votawawo/net_framework_windows_8._1_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/nifasoge.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_off0000e3c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3C0 5192 bytes
SHA-256: a8fb9ac411fad2fb2ddd97d08eeb225d3483ac80336c07cc49efe2e5767bea7f
font_01_sfnt_off0000f55f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF55F 10204 bytes
SHA-256: 3be8a4fe6817adf0772a4f20f368e5d5789d915edc144f3816371973a4cdeb7e