Malicious PDF — malware analysis report

Static analysis result for SHA-256 c00edc67d88c383c…

MALICIOUS

PDF

71.3 KB Created: 2021-02-15 06:46:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: fd018864e22921de8c63f9fa5051c281 SHA-1: a7d62f0e9a0a79fe79676cac1bee3f7fc7cf9180 SHA-256: c00edc67d88c383c8578ba91fea11ecd1cb00361c90fdfa79b06337bcec3a269
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=pozar+microwave+engineering+3rd+edition+pdf+download In PDF document text
    • https://cdn.sqhk.co/jotepomi/Giaieii/george_strait_new_album_2019_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/fusaduxuw/bG3jeid/no_crop_instagram_photo.pdfIn PDF document text
    • https://rejosunofefi.weebly.com/uploads/1/3/0/8/130874376/rajefuwepokawatide.pdfIn PDF document text
    • http://beach-fruit.fun/jovilatudenurobrfe0.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuperik/evih4jf/30281355231.pdfIn PDF document text
    • http://bestplacefor.rest/sslc_english_2_answer_key_2019ihz7s.pdfIn PDF document text
    • https://kozutimisomu.weebly.com/uploads/1/3/5/9/135982974/kofagoti-xuniwiso-tipeguduzuvudub.pdfIn PDF document text
    • http://sadovik.me/482028690029tze0.pdfIn PDF document text
    • http://mavitrade.com/946760608131fif5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mageparojepu.epizy.com/bahubali_2_full_movie_picture.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/givafowada.pdfIn PDF document text
    • https://s3.amazonaws.com/furunumaroxun/cbse_board_exam_12_date_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/difigomisosak/between_worlds_movie_parents_guide.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_off0000d990.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD990 5664 bytes
SHA-256: 11a7c0bf226ad72857b48a50d39830aecf55c748293f015a6c316a75400c5557
font_01_sfnt_off0000ecee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECEE 10316 bytes
SHA-256: a8ad2aad52ae0c5b4faf97bc00bbafed1e0cb2af3d48233ef8fa441dcb2f8af9