Malicious PDF — malware analysis report

Static analysis result for SHA-256 68cdcf10210b3b4a…

MALICIOUS

PDF

70.7 KB Created: 2021-03-02 20:07:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8965205574a09b8097e066813013b6a8 SHA-1: 8a3278f545a072d1c14097dbbd81955343e1d340 SHA-256: 68cdcf10210b3b4a40a0defe2dd7097734c7f45822cdfeee9d086dd257ac71b0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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=who%20moved%20my%20cheese%20life%20lessons PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4460708/normal_5ff4031db3e97.pdfIn PDF document text
    • http://belegowu.iblogger.org/leja_leja_re_answer_song.pdfIn PDF document text
    • http://bonifacy.site/99848147020f0xbn.pdfIn PDF document text
    • http://topmassage.net/56831003208of6zg.pdfIn PDF document text
    • https://vejikawotepux.weebly.com/uploads/1/3/4/8/134887167/4590899.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411001/normal_603b08f20d310.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380395/normal_5fd12b2a92686.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417662/normal_603dc35303e39.pdfIn PDF document text
    • https://dulodegusatoto.weebly.com/uploads/1/3/1/6/131636763/dipitap-bilegenoboxuto-sefuwefi-vofuvo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vopisatewegom.rf.gd/53393212934.pdfIn PDF document text
    • http://gupatevefojip.myartsonline.com/wemavixoxuxisod.pdfIn PDF document text
    • http://dubejatusir.epizy.com/boosted_performance_parts.pdfIn PDF document text
    • http://rogoxeruf.rf.gd/invicta_watches_for_sale_cheap.pdfIn PDF document text
    • http://nuzabasere.rf.gd/what_is_visual_data_analysis.pdfIn PDF document text
    • http://xebinuv.rf.gd/94163166033.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_off0000d90e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD90E 5128 bytes
SHA-256: 3982d27cbcc422bb0c283078f8f60eddfa57798985c47ddc5ae6b3b2ba5b558d
font_01_sfnt_off0000ea7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA7C 10444 bytes
SHA-256: 200fcb803f818b720d6ca451d53d8076710d09d92f9a2ae33fecc17e19c62fda