Malicious PDF — malware analysis report

Static analysis result for SHA-256 46138c01dc610fa0…

MALICIOUS

PDF

74.0 KB Created: 2021-02-13 05:22:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 33e2a7f97df6ceb1ec948c7e32350021 SHA-1: 1aa7ad4184c9f4c82cfe639337aa9052797fff95 SHA-256: 46138c01dc610fa0b40119da28b4f74a1850a227a70e594a3b08ffc4eb4f7170
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/wb?keyword=best%20app%20to%20%204k%20wallpaper PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4380068/normal_5ff8ae3ece3e8.pdfIn PDF document text
    • https://cdn.sqhk.co/wofunukasu/VSghgii/labaderazelelabixebus.pdfIn PDF document text
    • https://cdn.sqhk.co/kewesowovim/plvjfgh/i_find_you_in_the_darkness_alfa.pdfIn PDF document text
    • https://cdn.sqhk.co/tajiwikiter/jjdhfhs/kuvudezasi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456122/normal_5ff860ac5f9fd.pdfIn PDF document text
    • https://cdn.sqhk.co/tatakakuwito/dkhfXhd/chennai_super_kings_retained_players_price.pdfIn PDF document text
    • https://cdn.sqhk.co/daxerarugak/bNjjf0O/runisorir.pdfIn PDF document text
    • https://cdn.sqhk.co/magatile/hhghggh/lomudebiwivodota.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366011/normal_5fc937edd2aa1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484355/normal_5fdf0a33d6058.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473030/normal_5fe0243958d72.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467561/normal_5fe08cf9a3115.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/desenaz/joint_affidavit_of_marriage_format.pdfIn PDF document text
    • http://fufimawosudine.epizy.com/mefiwedukunusi.pdfIn PDF document text
    • http://jokilezitewoj.epizy.com/adjectif_verbal_ou_participe_prsent.pdfIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/paxogebowuvewufajaroxezi.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/baaghi_movie_hd_full.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/volo_s_guide_to_monsters_limited_edition.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_off0000e554.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE554 5108 bytes
SHA-256: aefe3b05e58fc8f2664e4b527ca49bf9c1c3d39ecfcf638ccbfcca91348edd4d
font_01_sfnt_off0000f6e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6E3 10672 bytes
SHA-256: a72f68523e955fd397cd32dd3c2281e9c472520ee240711540926e6082a4aa3e