Malicious PDF — malware analysis report

Static analysis result for SHA-256 d70b17402f39e1c7…

MALICIOUS

PDF

69.7 KB Created: 2021-02-28 12:32:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 218390b63605e8994354ed8b2d7d2649 SHA-1: f22f296b6a07f7951b0afe69fae99e38cc537c31 SHA-256: d70b17402f39e1c7eefdfc7daebd5232f12fabeaf92999be48e43e3e377a0bbd
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://golowaki.ru/award?keyword=city+of+omaha+human+resources+phone+number PDF link annotation
    • https://cdn.sqhk.co/ropobemuma/gdxjaw5/color_chart_wheel_for_hair.pdfIn PDF document text
    • http://erethiztzj.space/venifapongdbak.pdfIn PDF document text
    • http://cesaregaspari.com/pabazutum25tng.pdfIn PDF document text
    • https://cdn.sqhk.co/jetirivotu/eJVhhVB/download_pixelmon_mod_for_minecraft_1._14_4.pdfIn PDF document text
    • https://cdn.sqhk.co/noneniwetav/dhghazc/arkaneon_3d_brick_breaker_classic_arcade_games.pdfIn PDF document text
    • https://cdn.sqhk.co/lagexodefajo/hfnzt0F/foosball_table_soccer_table_72st.pdfIn PDF document text
    • https://cdn.sqhk.co/musutalivun/ggjhMgi/guardians_of_the_throne.pdfIn PDF document text
    • http://krokoboko3.xyz/xomafifotevafavelezabuzagduh1.pdfIn PDF document text
    • https://cdn.sqhk.co/munuluxel/qgegiQ8/james_w_nilsson_electric_circuits_solutions_10th_edition.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485448/normal_600a29a5a4a0b.pdfIn PDF document text
    • https://cdn.sqhk.co/wazikunal/NgcJjaP/weather_clock_widget_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zunaduxa/lozuwu.pdfIn PDF document text
    • https://s3.amazonaws.com/donukadizolin/bubble_shooting_games_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gogonof/50752994008.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/39639200935.pdfIn PDF document text
    • https://s3.amazonaws.com/wizitifowubux/english_grammar_test_mcqs_with_answers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c564.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC564 5368 bytes
SHA-256: d358ba88211ec2d905caffec1e407ccc6b1533c0a968efc3191dec1a4b3fcfea
font_01_sfnt_off0000d781.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD781 9928 bytes
SHA-256: e399eac758b00071328c9dea5a89d121bba0288851b39bbe44a37f013273e14d
font_02_sfnt_off0000f995.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF995 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361