Malicious PDF — malware analysis report

Static analysis result for SHA-256 47172ddea1571564…

MALICIOUS

PDF

73.0 KB Created: 2021-02-15 13:53:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 19e4d7ab12090853d858a8ccf373d71b SHA-1: 6105bc8f3acfce97a9eaeb94fb251a7b6c176663 SHA-256: 47172ddea15715644cfc9d518422bbfd9b1892973911d1c4bfc6f7b9a83a4e56
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://baarspo.ru/wix?keyword=black+desert+mobile+enhancement+guide PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4416510/normal_5ff290e018039.pdfIn PDF document text
    • http://policyhelpcenter.com/negizokawanenisizajik3v7qd.pdfIn PDF document text
    • https://bolamowoxuwev.weebly.com/uploads/1/3/3/9/133997192/6763129.pdfIn PDF document text
    • http://tehnotop.site/boris_fx_mocha_pro_2020_freemqzg1.pdfIn PDF document text
    • http://detonic-italy.website/bses_rajdhani_new_connection_application_forma3v1d.pdfIn PDF document text
    • https://mawetifatine.weebly.com/uploads/1/3/2/6/132683292/jezozoritinepo_sipuroxujoxaxu_bexefode_migexizid.pdfIn PDF document text
    • http://tvoyoproc.fun/professor_messer_security_plus_notesk0dxi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444358/normal_601e0a369cd7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387703/normal_5fdae91fdf417.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502236/normal_6009962648aa8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462344/normal_5fe2581f502ad.pdfIn PDF document text
    • https://texapusozos.weebly.com/uploads/1/3/1/4/131407592/547969.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404739/normal_602480e795adb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458137/normal_5fde8ba0480a1.pdfIn PDF document text
    • https://pelimabogex.weebly.com/uploads/1/3/4/6/134685965/rusagedozotitafojip.pdfIn PDF document text
    • https://nagiwudulowep.weebly.com/uploads/1/3/0/7/130775657/wijes-tubodexokoxezi-ripokofod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fipuxogililego.epizy.com/oxford_first_thesaurus.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_off0000df94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF94 5604 bytes
SHA-256: de08b07dc066778ea6b3367a132aebf8ff8abbc356a3a06c40ff1850bc397468
font_01_sfnt_off0000f277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF277 10568 bytes
SHA-256: 638727fcf65b0a9f7e3557ee7941c055c9469c967528994a2e8accec7bfa4402