Malicious PDF — malware analysis report

Static analysis result for SHA-256 342c384ad55bd99c…

MALICIOUS

PDF

68.0 KB Created: 2021-02-22 16:56:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: edb72291f94ab215aead0153fcdbbf6d SHA-1: 20608688d54071baa4342b6428c3dca4ea7fd8bc SHA-256: 342c384ad55bd99c505e05b1fcc8f6fc43de596ac290c2d8b7700694ab99e85a
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://baarspo.ru/wix?keyword=coinbox+hero+unblocked+76 PDF link annotation
    • http://0fruits.space/32778484556khk45.pdfIn PDF document text
    • https://cdn.sqhk.co/gubisagebuto/1fheigq/wujanivozuvitegumotesewuv.pdfIn PDF document text
    • http://chebsvet.ru/66254734478p33qr.pdfIn PDF document text
    • https://cdn.sqhk.co/besogevipadi/iidMgcW/lbs_to_kg_calculator_formula.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480743/normal_60339c2fc2c4c.pdfIn PDF document text
    • http://robertferrell.net/trinsey_vs._pagliaroxxx32.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368978/normal_601708860c761.pdfIn PDF document text
    • http://instacopyrightcenter.com/mind_games_to_play_with_your_familyisygk.pdfIn PDF document text
    • https://cdn.sqhk.co/janawezexoj/CblIhb1/super_mario_world_3_online_emulator.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497095/normal_5fe3dfef9c4bc.pdfIn PDF document text
    • https://cdn.sqhk.co/javukapegami/5Pwgejd/soul_knight_codes_2019_september.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382421/normal_5fceaa679cf7a.pdfIn PDF document text
    • http://kungfumalibu.com/92252992843djzb7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372967/normal_601636b42fbf2.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/farowug/klean_strip_acetone_msds_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuzo/89268687742.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/karnofsky_performance_status.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/atmel_8052_microcontroller_datasheet.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_off0000cf20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF20 5048 bytes
SHA-256: 42189beae6df20c3b58310e9154f1d9e3b7e0d26350924a21b7a226fd532503b
font_01_sfnt_off0000e04c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE04C 10092 bytes
SHA-256: 004c8dd7edc193ae58875206281f231a4211d9750b1a518d53ba9631c840f1db