Malicious PDF — malware analysis report

Static analysis result for SHA-256 838ae30ed19184aa…

MALICIOUS

PDF

70.1 KB Created: 2021-02-27 13:42:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 554591355f71683d8e3d98d32bfcc24a SHA-1: 2b3e34dd9e6abdbb1be9f407a2c5a12c213885df SHA-256: 838ae30ed19184aa69d54468b7edfc657dd7d4fe90a211ff32ae53cd46278555
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://midufefew.ru/award?keyword=does+netflix+have+the+movie+the+secret+dare+to+dream PDF link annotation
    • https://cdn.sqhk.co/latosagax/DgiahbH/16937713126.pdfIn PDF document text
    • https://cdn.sqhk.co/zotofoza/igrjjgg/dixie_d_amelio_song_lyrics_clean.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382621/normal_5feffcc0c0469.pdfIn PDF document text
    • https://cdn.sqhk.co/dafisuwikib/NfidVz4/33503027508.pdfIn PDF document text
    • https://cdn.sqhk.co/ponigubik/iiRPgdU/monster_energy_supercross_game_ps4_review.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489404/normal_5fe14b1c48b54.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484990/normal_5fdc39923b47b.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuronufepu/epiihja/275383041.pdfIn PDF document text
    • https://cdn.sqhk.co/riragimi/mhabigP/60268764057.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387711/normal_601755b9b62c4.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/luxelula/81116837259.pdfIn PDF document text
    • https://s3.amazonaws.com/minegikukovel/tamasha_full_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/25495859535.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/bipobawekuv.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/line_plot_powerpoint_2nd_grade.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_off0000d69d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD69D 5388 bytes
SHA-256: ba7ece212e7600abdd936d9a91a4f5b39f5c4a86bbf358c8d081dfa2f9220ef6
font_01_sfnt_off0000e8d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D3 10096 bytes
SHA-256: 5498fa8b2c41545374e0a221a3c90ccd966cb274f05cb2e36da69ba88e90187e