Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9d985ac8d66dbcc…

MALICIOUS

PDF

72.3 KB Created: 2021-02-11 11:55:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ae376ba5467f4cc3e16fbb317dcb76a2 SHA-1: e17f1ab1a4988ca8af92bad8515dabaa96f2f4a5 SHA-256: b9d985ac8d66dbcc0829d3eaa4a15594fda8f0b07a0cc396dd2fddc20da9d271
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://seumenha.ru/123?utm_term=matatalaib+tarlac+zip+code PDF link annotation
    • https://cdn.sqhk.co/vulovosovem/ihfwZ8N/outbreak_cast_monkey.pdfIn PDF document text
    • https://cdn.sqhk.co/sinemajud/idjdsPp/muselepulaki.pdfIn PDF document text
    • https://cdn.sqhk.co/xogeloke/eMLgdjd/76877995492.pdfIn PDF document text
    • https://cdn.sqhk.co/fadejiweruw/raicijr/g-_stomper_flph_free_edm_123.pdfIn PDF document text
    • https://cdn.sqhk.co/luwibajik/c9jhw6U/skyforce_unite_apk_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/gurudulep/hgjjg36/k_pop_band_bts_dynamite.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422894/normal_5fcc527921f47.pdfIn PDF document text
    • https://cdn.sqhk.co/jivumigen/1Q5jae8/niwaziguvokobituzeda.pdfIn PDF document text
    • https://cdn.sqhk.co/mozulunilex/qmgidrN/cake_decorating_courses_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/terasovo/EigjeuG/xorakaxitafenoz.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/nigimul/witamonutoxiwagoposakub.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/achteruitrijcamera_wifi_android.pdfIn PDF document text
    • http://jominata.rf.gd/asn1_editor_free.pdfIn PDF document text
    • http://likasiz.epizy.com/loxifibimevumezet.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/rogers_centre_guided_tours.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_off0000de47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE47 5084 bytes
SHA-256: 463d0ef2bce1047b3101b3e2608f060a3a34ac70d6afe3ade716d6a03c69a525
font_01_sfnt_off0000efab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFAB 10856 bytes
SHA-256: dc3774984ba4df125043fa71f0cf4ee711ccb38292d73bb23b74a0325a729d62