Malicious PDF — malware analysis report

Static analysis result for SHA-256 1914022a02fdfb75…

MALICIOUS

PDF

62.6 KB Created: 2021-02-20 18:20:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2ec56d812a25b04e01787eef77dbd26d SHA-1: 2947aab0b8b5e4ec16abbf171b0335f51bc971c5 SHA-256: 1914022a02fdfb75b7b152f7f6acea4fe19c4984b2c83e61a26fc506ad7092f6
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/aws?utm_term=senior+systems+engineer+salary+range PDF link annotation
    • https://cdn.sqhk.co/tajiwikiter/au5gigi/rocket_music_player_apk_old_version.pdfIn PDF document text
    • https://cdn.sqhk.co/sururezog/N8gjjiF/cupcakes_cartoon_pictures.pdfIn PDF document text
    • https://cdn.sqhk.co/mewuxedodi/fihhfgi/56716929046.pdfIn PDF document text
    • https://cdn.sqhk.co/nogawevorus/hchfjci/sewidujirobex.pdfIn PDF document text
    • https://cdn.sqhk.co/sadirorig/gh3mict/mimedolunuxodemelowu.pdfIn PDF document text
    • https://cdn.sqhk.co/givikufat/dxjgMv4/zegoxezosi.pdfIn PDF document text
    • https://cdn.sqhk.co/vemosoveveb/SjghgcS/new_3ds_xl_hyrule_edition_ips.pdfIn PDF document text
    • http://iranianvc.com/rodarono75y6e.pdfIn PDF document text
    • https://cdn.sqhk.co/vatopibar/ieShcxP/top_up_free_fire_bonus_50.pdfIn PDF document text
    • http://porn77.design/40082229176eiqsd.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/dazifozixawus/zemana_mobile_antivirus_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/wevasuniwono.pdfIn PDF document text
    • http://nisakujavo.rf.gd/aadhaar_card_address_change_form_online.pdfIn PDF document text
    • https://s3.amazonaws.com/verirejon/71355104311.pdfIn PDF document text
    • https://s3.amazonaws.com/gezizefefififa/63403217574.pdfIn PDF document text
    • https://s3.amazonaws.com/tobaziw/94879442833.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/acrobat_dc_reduce_file_size.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/dadadaziru.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_off0000b6ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6FF 5208 bytes
SHA-256: 2242f8e40a4433b4b083de1b285a05298ac6a4a3ca1bd1e96884a1e40ec0a2ca
font_01_sfnt_off0000c8a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8A1 10836 bytes
SHA-256: fa38d72b57b9e0939f891fa5267be4ba25b41d8a4ffbda6efb2e4cea73355207