Malicious PDF — malware analysis report

Static analysis result for SHA-256 69bb15456f1bb76e…

MALICIOUS

PDF

68.1 KB Created: 2021-02-21 22:22:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ff41a8befe2f19ee690c73241c32e6fb SHA-1: 38c6efa2bf20e278c0be621bf6511dccd3d649c1 SHA-256: 69bb15456f1bb76e202541c5371a4243c218186e8b952b09c3e7b0b258b0d516
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://yafferge.ru/wb?keyword=cyberpower%20pc%20front%20usb%20not%20working In PDF document text
    • http://morj.space/569344228552pwd4.pdfIn PDF document text
    • http://voiprormul.xyz/bipaxodelamuzetizijewulivnxiy1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464527/normal_5fe8e50b3881c.pdfIn PDF document text
    • http://igafnd.org/70919470244hl2fi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463807/normal_601de8451c3c4.pdfIn PDF document text
    • http://daimontimur.org/integrated_reporting_definition_deutschlxilz.pdfIn PDF document text
    • http://mignonette.space/how_to_do_trig_on_non_right_triangleswh1jn.pdfIn PDF document text
    • https://cdn.sqhk.co/teposodigar/jVKmhfW/gebijogasuxojujewosus.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460070/normal_5ff96790dfef2.pdfIn PDF document text
    • http://imm-shoes2.club/automatic_reply_leave_templatecy83e.pdfIn PDF document text
    • http://hookup671.site/mimikitamawilerurista3uc.pdfIn PDF document text
    • http://rating-bookmaker.ru/lost_mine_of_phandelveruryc9.pdfIn PDF document text
    • http://prizinsta.info/wikuwulimaronusazukajedinqbjm3.pdfIn PDF document text
    • http://detonic-official.website/talking_panda_apknareo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419195/normal_6020956f44f72.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cdb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDB7 5244 bytes
SHA-256: 937d2036253c33dda3953d620a5cb755f8c16c5a31f0636f84b01862f9d9673c
font_01_sfnt_off0000dfc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFC0 10488 bytes
SHA-256: 2911673eb8bb2595ca48e535d4948722fa97b77db64566783fa93b5048b6e4f5