Malicious PDF — malware analysis report

Static analysis result for SHA-256 282580348b15333d…

MALICIOUS

PDF

68.9 KB Created: 2021-02-19 06:57:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: c25f2f009908a4b64038e49511222480 SHA-1: 5fc06af3f72265021479b70d6da76ceedf274d4f SHA-256: 282580348b15333dcf77663457d6f5f7492bc853d02211ae990a58109582aa9f
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://druttle.ru/123?utm_term=ahlan+wa+sahlan+intermediate+textbook+pdf PDF link annotation
    • https://cdn.sqhk.co/timadupak/cieJtja/anti_smash_allegations.pdfIn PDF document text
    • https://cdn.sqhk.co/jebumujo/9PGDQNV/devolofodoluriminagegamud.pdfIn PDF document text
    • https://cdn.sqhk.co/nisugavu/zgihjdx/ufc_results_252_highlights.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476301/normal_5fe6089bb54ce.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470821/normal_5fca70c781ad1.pdfIn PDF document text
    • http://natbeach.space/boggan_s_oasis_fishing_report6056m.pdfIn PDF document text
    • https://cdn.sqhk.co/kagurase/T3Thg7v/gravity_definition_drivers_ed.pdfIn PDF document text
    • https://cdn.sqhk.co/nepusoliweda/QiiSchi/all_big_bang_theory_characters_ranked.pdfIn PDF document text
    • https://cdn.sqhk.co/tigixexaxi/ihghehf/mountain_climber_machine_workout.pdfIn PDF document text
    • http://help-violation.com/bicycle_built_for_two_lyrics_answersk2mc.pdfIn PDF document text
    • http://obsluzhivanie-kompyuterov.moscow/sojijumubx8o4.pdfIn PDF document text
    • https://cdn.sqhk.co/gopepilexafi/cffidJK/emergency_alarm_sound_wav.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482853/normal_5fddb1b0d0318.pdfIn PDF document text
    • https://cdn.sqhk.co/mafowixodi/igicSgc/drift_king_3d_drift_racing_game.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/wovugi/47944982579.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_off0000d0a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0A0 5632 bytes
SHA-256: e69e4ae24bccae799a56f90e1eddc94bd4da29c7cd7c31c9a3f7e2b0f1aa161f
font_01_sfnt_off0000e3a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3A9 10364 bytes
SHA-256: a8a12d1211f869733f94d1af62ce230562438f9bce34c3532d12b51c320aa3a7