Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb15d39a1f25e53b…

MALICIOUS

PDF

67.8 KB Created: 2021-03-05 00:21:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d880e51aef84f0f0a0a452513f3ec219 SHA-1: e433c1496e44658c8f5956970c3c04ca686278d8 SHA-256: bb15d39a1f25e53bac258e1e5e241a75c8ef5909db009f082d02115630308fd2
126 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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://nipisod.ru/wb?keyword=international%20financial%20management%20jeff%20madura%2014th%20edition PDF link annotation
    • http://raisinshq.pro/kulexitidimumopilivuzoditkc86u.pdfIn PDF document text
    • http://baxosemot.iblogger.org/bhikari_full_movie.pdfIn PDF document text
    • http://mugipojezekegul.iblogger.org/pojafobajaduzusibef.pdfIn PDF document text
    • http://thedefenseforge.com/mental_status_exam_formge3ge.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bidasumibave.epizy.com/66618508847.pdfIn PDF document text
    • http://zamoguwudegovo.rf.gd/guided_food_tours_singapore.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/how_to_track_penny_stocks_online.pdfIn PDF document text
    • https://5a11eff3-0c7a-45dd-bb89-060d4d4d2060.filesusr.com/ugd/72216b_64bef3da61ab4fc99100583eaa7cad8a.pdf?index=trueIn PDF document text
    • http://xijuwevame.epizy.com/mupuf.pdfIn PDF document text
    • http://sezajebufixi.epizy.com/6429606652.pdfIn PDF document text
    • http://powajokex.rf.gd/ariens_24_snow_blower_oil_change.pdfIn PDF document text
    • http://wipidomi.rf.gd/82878811049.pdfIn PDF document text
    • https://d21da297-2d1c-4020-882f-059d99c29dc9.filesusr.com/ugd/3724a2_e6b2482fe61a4b8c9212056db0b8fb91.pdf?index=trueIn PDF document text
    • https://46c0acaa-de7d-4f46-84f0-c2cf1d8ff7d9.filesusr.com/ugd/ac1638_ed26875653884642a514ab66ad795155.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jarirotexab/anandamanandamaye_telugu_movie.pdfIn PDF document text
    • http://jurolabadujo.rf.gd/bare_necessities_sheet_music.pdfIn PDF document text
    • http://lafeseg.rf.gd/11741378056.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/zobomemumizedapido.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_off0000cbf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBF0 5412 bytes
SHA-256: 055c3487a63356f7a7b6700f3ac36d4b486ce12797b981bbdf679ab949e4fe75
font_01_sfnt_off0000de39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE39 10376 bytes
SHA-256: a8be331d68030363570f377837f70195023fed2fb29d7e1cf431b3267edf860f