Malicious PDF — malware analysis report

Static analysis result for SHA-256 03fc312d23f9b26d…

MALICIOUS

PDF

63.5 KB Created: 2021-01-29 06:15:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 83e4c93f43ff329517f185253a419ad1 SHA-1: 273b1b5398d52c4fd5732ee47988eec2fbba8701 SHA-256: 03fc312d23f9b26d2a83cca714a95c6dbb1650f249f19df724000ba40848ead1
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://seumenha.ru/wb?keyword=joe%20mettle%20worship%20songs%202019%20download PDF link annotation
    • https://cdn.sqhk.co/fomeluxilim/fijHheV/16763217095.pdfIn PDF document text
    • http://nutristrike-shop.ru/77614610711j6obj.pdfIn PDF document text
    • http://pevetune.66ghz.com/fuvedezatovome.pdfIn PDF document text
    • https://cdn.sqhk.co/wefegiwezon/6DYibgg/notepad_dark_mode_windows_10.pdfIn PDF document text
    • http://kudretbozaci.com/89574044270lhko1.pdfIn PDF document text
    • http://megantv.site/george_adamski_booksk4ge1.pdfIn PDF document text
    • https://cdn.sqhk.co/badaxiloru/0oYygez/86121717174.pdfIn PDF document text
    • http://stepka2016.xyz/sisters_tv_show_itv_2020golw1.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/juvosi/mosuxuvanobefudeb.pdfIn PDF document text
    • https://s3.amazonaws.com/kakef/cauchy_mean_value_theorem_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/wuvepilamamuse/electronically_controlled_manual_transmission_cars.pdfIn PDF document text
    • http://gavuzolu.epizy.com/aaromale_song_123musiq.pdfIn PDF document text
    • http://siwebojik.epizy.com/zusene.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/41166645070.pdfIn PDF document text
    • http://kipenul.epizy.com/reporter_cy_home.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_off0000bc1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC1E 5936 bytes
SHA-256: bb4d98e5d2ce982e870cbadc5c551311f08d5ad3c9ff3dbd5b58f11d834b812d
font_01_sfnt_off0000d036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD036 9684 bytes
SHA-256: 1c6a7efd798b33be277731f76d2cb3a38e9df266f94eba91a2fdf7ac81281c05