Malicious PDF — malware analysis report

Static analysis result for SHA-256 67edb9829a16a9c0…

MALICIOUS

PDF

72.0 KB Created: 2021-02-10 09:03:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 37eea0612a55869b14ad76d5b3a3d111 SHA-1: 31f9684da3f02ffbb52b9d96a29506661d947c37 SHA-256: 67edb9829a16a9c096ba5f2dc9d504b35965ce84bba0b5e579cd42d1c8a8e144
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jottigo.ru/wb?keyword=basketball%20stars%20mod%20apk%201.%2020.%200 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4529024/normal_5fe4b364b51d9.pdfIn PDF document text
    • http://basukoroj.22web.org/danamekizenomajadotikiza.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460980/normal_5fcd151129d2a.pdfIn PDF document text
    • https://cdn.sqhk.co/bevoletef/iigcrhe/horror_escapes_la_dr_x.pdfIn PDF document text
    • http://zupebupinumupo.iblogger.org/google_chrome_full_file.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402262/normal_6013e2bd9d46d.pdfIn PDF document text
    • https://cdn.sqhk.co/gupikekarobo/ekhbgcC/nails_for_you_waukee_ia.pdfIn PDF document text
    • http://verezitabel.66ghz.com/google_app_script_get_all_sheets.pdfIn PDF document text
    • https://cdn.sqhk.co/punenekebi/hAQjffc/off-_road_rally_usa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417405/normal_6018a2274d09f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459784/normal_6008eb10d796a.pdfIn PDF document text
    • http://bagodipab.22web.org/kogutibe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wepaxilex.epizy.com/10402671233.pdfIn PDF document text
    • http://nomapalugaji.epizy.com/spring_waltz_mariage_d_amour_sheet_music.pdfIn PDF document text
    • http://zilekej.epizy.com/jspdf_add_image_png_example.pdfIn PDF document text
    • http://poserub.rf.gd/25539109359.pdfIn PDF document text
    • http://fufinekudag.epizy.com/fovaferit.pdfIn PDF document text
    • http://sumorililuduj.epizy.com/tejigasabaluxoka.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_off0000dce1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE1 5716 bytes
SHA-256: ff06a7d953d74325ad54febc1085d0c00e151f185b8a6b1625e2e33194be95b4
font_01_sfnt_off0000f041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF041 10392 bytes
SHA-256: bf6b4ff7525d6d0e7e14c006a23b3448a6bd492cf69c9566b30e355de048d1b0