Malicious PDF — malware analysis report

Static analysis result for SHA-256 79050adf47e97988…

MALICIOUS

PDF

71.8 KB Created: 2021-03-04 14:42:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 154f944fa0e2c8275a143e64736922fd SHA-1: e23295b0b422daf63f6b927fe924e16fb4d82359 SHA-256: 79050adf47e97988bfffdf5c3cfe5711de5b424fcd94774f7cfb86d1384dd987
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://kuzutuzo.ru/award?keyword=rainforest+jumperoo+parts PDF link annotation
    • https://cdn.sqhk.co/ravawiku/jijeqhe/visuwem.pdfIn PDF document text
    • https://cdn.sqhk.co/pujapipiwat/eYgcdhi/toca_builders_review.pdfIn PDF document text
    • https://cdn.sqhk.co/xupodafib/N5Gcha1/board_games_online_with_friends.pdfIn PDF document text
    • https://cdn.sqhk.co/sawapevodef/kibpfQy/golakapuzufemomozapase.pdfIn PDF document text
    • https://cdn.sqhk.co/nurijodefa/Fogjhfl/amc-_1060_digital_remote_alarm.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/iirhjhh/cabin_crew_briefing_checklist.pdfIn PDF document text
    • https://cdn.sqhk.co/kazakilen/ZheOidV/life_simulator_2019_roblox_obby.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376610/normal_6014e5f1cf8eb.pdfIn PDF document text
    • https://cdn.sqhk.co/polopomoset/zsjifhf/ballinger_pinchot_affair_quizlet.pdfIn PDF document text
    • https://cdn.sqhk.co/vipatemeluti/XgjgdgP/world_soccer_champs_app.pdfIn PDF document text
    • https://cdn.sqhk.co/gabixeme/asjdhhT/faraway_tropic_escape_level_5_notes.pdfIn PDF document text
    • https://cdn.sqhk.co/janawezexoj/NNihSm2/r-_type_dimensions_ex_ps4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446512/normal_5ff312ba17dd0.pdfIn PDF document text
    • https://cdn.sqhk.co/ragojagef/ggjhjco/pupps_pregnancy_rash_on_face.pdfIn PDF document text
    • https://cdn.sqhk.co/toromerepowa/ZiiOsge/72687325933.pdfIn PDF document text
    • https://cdn.sqhk.co/wosipuvetot/gc4Fyhf/pocketinveditor_apk_pro.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/mupukesunobaga/online_project_management_certificate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2d15e88-3664-4320-8831-ca956f5d58d7/30413525092.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5b03f84-a59c-418b-a710-48cec2f5f43d/what_is_the_next_book_after_discovery_of_witches.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23c2cded-aa10-48ea-9c24-7d0450375662/63841892277.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/antenna_cond_regular_font_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/77029924446.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60a31b77-8c0a-4b15-b44e-2724884c5fdd/25422399628.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/259a8c14-fbfc-4cc2-8cac-eb45e518d669/66475047126.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_off0000cf2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF2C 4980 bytes
SHA-256: e56517d531d627726b82d95962e5f08860d03afd9c3612f87cfb945cebf94555
font_01_sfnt_off0000e00c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE00C 10428 bytes
SHA-256: 4d9c6d87e11ec9a798850e2e87c979606c2ef15511d1cdaa75c78ebd07135cda
font_02_sfnt_off0001037d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1037D 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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