Malicious PDF — malware analysis report

Static analysis result for SHA-256 c48483feaf559a4f…

MALICIOUS

PDF

82.8 KB Created: 2021-02-09 05:41:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6545927b540392a9f8ea04be1668187c SHA-1: d45b483b7e9149c2889771bbe0666860fd69766c SHA-256: c48483feaf559a4f79fd740347a4f513f0d21847c0e308bf66cb8aaecb450d21
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/123?utm_term=managers+and+the+legal+environment+pdf PDF link annotation
    • http://mpvideo.org/82934424914brtb.pdfIn PDF document text
    • https://cdn.sqhk.co/bunigenozav/aYhcs3j/84566366831.pdfIn PDF document text
    • https://cdn.sqhk.co/narulaloro/biigigg/bimunekeseritosazotutar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402247/normal_6021d062501ee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452193/normal_5ff8573cb0fba.pdfIn PDF document text
    • https://cdn.sqhk.co/fegadosijete/esgcgWS/party_city_promo_code_not_working.pdfIn PDF document text
    • https://cdn.sqhk.co/jekunesoru/eQl0igj/70980071417.pdfIn PDF document text
    • http://rekipeva.iblogger.org/74237362426.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427295/normal_601b3a7f13e41.pdfIn PDF document text
    • http://gitipakivo.iblogger.org/79299574592.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/davubewu/kali_linux_ubuntu.pdfIn PDF document text
    • https://s3.amazonaws.com/safago/pemibolurajokemamo.pdfIn PDF document text
    • https://s3.amazonaws.com/fogibi/74815094150.pdfIn PDF document text
    • https://s3.amazonaws.com/legipalofi/73346799435.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/bleacher_report_packers_tyler_dunne.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_off0001073d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1073D 5520 bytes
SHA-256: 38830894a65559f98a99c2554f9d08cbb7c2eb0af1ae81b72f06d1ec8d54596e
font_01_sfnt_off000119eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119EB 10552 bytes
SHA-256: 812ff2feae086b705d7ab348b6c6b740757a8f517ec56e8e9308f21c26b5a059