Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ced4e51884259db…

MALICIOUS

PDF

73.2 KB Created: 2021-02-26 22:55:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 86e045cc0a22202ad0e111f891abfa8c SHA-1: 3f9087e5a66457bd31ade14f46dfff3cb2bab800 SHA-256: 9ced4e51884259dba671cbb8f71818a4664ea399762c2d130da266fdaaf46151
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://ponafet.ru/award?keyword=how+to+calculate+trapezoid+volume PDF link annotation
    • http://fitit.space/el_viaje_del_heroe2bhyu.pdfIn PDF document text
    • http://liko-sneakers.com/at_t_ios_11_visual_voicemailzylft.pdfIn PDF document text
    • https://cdn.sqhk.co/jijatidos/gy1gcGq/monster_truck_movie_ost.pdfIn PDF document text
    • https://cdn.sqhk.co/korulifesewa/JdhjUox/tubunolategatiwusakemife.pdfIn PDF document text
    • http://micrometerdigital.xyz/mario_kart_double_dash_manualdbosj.pdfIn PDF document text
    • https://cdn.sqhk.co/gokovolasula/iiXYjc4/divepamevozufalajepivep.pdfIn PDF document text
    • https://cdn.sqhk.co/wifuponi/0PB1Ogg/tulikedebisage.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380863/normal_6005bc10e7ea0.pdfIn PDF document text
    • https://cdn.sqhk.co/wevafofed/tjbghLc/84322817704.pdfIn PDF document text
    • http://tryse.xyz/mewozcei9b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459326/normal_60353eb3b6591.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/nitatotol/joraninunamefokoxefavevu.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/37777510056.pdfIn PDF document text
    • https://s3.amazonaws.com/gonima/5049085334.pdfIn PDF document text
    • https://s3.amazonaws.com/tipikaxe/62877335746.pdfIn PDF document text
    • http://rojinunapubepax.epizy.com/yodobashi_osaka_floor_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/amy_winehouse_back_to_black_piano.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_off0000e010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE010 5204 bytes
SHA-256: 976805ff27bea92940364a25dbac786c19bb163ef86642fe99f0679b8c6da3f4
font_01_sfnt_off0000f1d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1D1 10960 bytes
SHA-256: f86cc52e8e3813fe2b1c588632410c180676911feaf32362a754c6ee5535dbba