Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c5947efe5f6fff6…

MALICIOUS

PDF

69.8 KB Created: 2021-01-24 15:39:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d20b47070a59e9b4063896f0a1f7d9ad SHA-1: 29c7dbabc77fc8fcf91a0dee6d1063bc05c75a86 SHA-256: 0c5947efe5f6fff6618bea6eb63e2dcecb980861fdefd66ea57c68016aca36c4
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://leonvi.ru/123?utm_term=airline+industry+analysis+2017 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387933/normal_5fe9866d612ad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465025/normal_5fe4a0c904894.pdfIn PDF document text
    • https://cdn.sqhk.co/tamikoveken/GVvIgjD/4727083044.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443802/normal_5fe79e97a2078.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450044/normal_5ffcdf036c767.pdfIn PDF document text
    • http://the-glow.ru/flightview_free_flight_tracker_apk35j5d.pdfIn PDF document text
    • https://cdn.sqhk.co/bexutavukaro/fhdicjJ/kiss_of_war_elite_officer_badge.pdfIn PDF document text
    • http://batezelokev.iblogger.org/pesorajofewake.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487201/normal_5feff25d80699.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413838/normal_5fe426d2d2c1a.pdfIn PDF document text
    • http://serviceforyou.site/79978066102kjiw4.pdfIn PDF document text
    • https://cdn.sqhk.co/dawezizupata/hebhgTV/75749720805.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502188/normal_5ff8d424e0efc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417824/normal_5fffb4235b073.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425912/normal_5fd1193622b3d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d454.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD454 5316 bytes
SHA-256: 264b41b2aeaf4bbd9364a64ab217a6fb35b181cfe7e944086f0ec183ed1992d1
font_01_sfnt_off0000e680.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE680 10592 bytes
SHA-256: 62814187c666ac7b0f1724ce97a230d18c1c5bd87b384992bcc10293d628bc0f