Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec6e7a54c01905fa…

MALICIOUS

PDF

73.2 KB Created: 2021-02-27 14:31:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4cdc4aa3ff602ab142d8d81e6e7c8cc9 SHA-1: 75be6ec07aa2a9a9f2b5386756321dcccdf8986b SHA-256: ec6e7a54c01905fad8c9f246ee29281b80741851c72f067b3198baa59ee62422
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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://botokaw.ru/award?keyword=kero+sun+radiant+10+owner%2527s+manual PDF link annotation
    • http://idealslimitaly-official.site/81892622297ca359.pdfIn PDF document text
    • http://openchambre.xyz/94584681164u8k44.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366340/normal_601f033734339.pdfIn PDF document text
    • http://7lessons.fun/diet_chart_in_pregnancy_in_hindi7w5pa.pdfIn PDF document text
    • http://damvglaz1.xyz/basic_algebra_problems_worksheet_and_answersjhgoj.pdfIn PDF document text
    • http://xumupizaxuto.scienceontheweb.net/xagag.pdfIn PDF document text
    • http://ledozikatiresev.scienceontheweb.net/microsoft_visual_basic_.net_programmers_cookbook_.pdf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484624/normal_602f3c31a5249.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383138/normal_5fff5e80f271c.pdfIn PDF document text
    • http://peuer.xyz/g-shock_gravitymaster_ga-1100-1a3drkjagi.pdfIn PDF document text
    • http://bilkaita.space/analysis_of_secondary_data6j7mk.pdfIn PDF document text
    • http://odemebayisitrafik.com/club_car_1550_service_manual8wdts.pdfIn PDF document text
    • http://teenagetutor.online/gerund_worksheet_with_answersczgi7.pdfIn PDF document text
    • http://fazejajogavu.medianewsonline.com/9873629802.pdfIn PDF document text
    • http://fanisore.sportsontheweb.net/what_is_the_white_queen_based_on.pdfIn PDF document text
    • https://cdn.sqhk.co/tedigedubemi/jh4jAii/gospel_music_nigerian_worship_songs.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/fekaduvopigab/vasoxepekexojibejaso.pdfIn PDF document text
    • https://s3.amazonaws.com/xokebore/59320424684.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/75319668020.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_off0000e0df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0DF 5260 bytes
SHA-256: 61811158c765ee5c0cbc0267fbbd7406c9c957b9b88aee976f55038b5f0fabac
font_01_sfnt_off0000f2c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2C9 10900 bytes
SHA-256: 42aada30f1978ee2cd9a16eb4a587a16a89da35b4415d1fa7524baa4dead2674