Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d1c7526becc0697…

MALICIOUS

PDF

70.7 KB Created: 2021-02-21 06:28:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8ccba06ab93835309ce45ce1e53ef172 SHA-1: 63dab7c969d8cdd769a06eed02aae52dffdbfdc1 SHA-256: 6d1c7526becc069749b8a7e910d581fac27dce410ac91b2b066231958bca0fb9
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jottigo.ru/wb?keyword=is%20google%20sketchup%20free PDF link annotation
    • https://vudunige.weebly.com/uploads/1/3/5/9/135981242/vifuropukimilujug.pdfIn PDF document text
    • https://cdn.sqhk.co/tisewesir/jdYiehd/18913898571.pdfIn PDF document text
    • https://newogofifexepe.weebly.com/uploads/1/3/4/8/134884114/4677024.pdfIn PDF document text
    • http://migunovaj.iblogger.org/spondylosis_deformans_adalah.pdfIn PDF document text
    • http://ximasoj.22web.org/bevywise_iot_simulator.pdfIn PDF document text
    • https://cdn.sqhk.co/gedugari/Zjdwge3/bomutilux.pdfIn PDF document text
    • http://onsideball.info/koledonenoxowuxugp0u.pdfIn PDF document text
    • https://vebafuxitupum.weebly.com/uploads/1/3/4/8/134890404/783b25.pdfIn PDF document text
    • http://submonster.xyz/2766293542obpt9.pdfIn PDF document text
    • http://tumbaa.space/34992373628zovjs.pdfIn PDF document text
    • http://form-lnstagramverificationbadge.com/395158028585fdn6.pdfIn PDF document text
    • https://cdn.sqhk.co/tosilura/gdihf2W/6911107813.pdfIn PDF document text
    • https://lepefolavexar.weebly.com/uploads/1/3/0/8/130874674/xosuneg.pdfIn PDF document text
    • https://pirowefe.weebly.com/uploads/1/3/4/4/134444143/2815394.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://litezopufesox.epizy.com/steelhead_fishing_report_challis_idaho.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_off0000d7b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7B4 5068 bytes
SHA-256: 47fcbbb86504dff76d57bd47b3975ab75b564332583e20daacec6f5922cdeacd
font_01_sfnt_off0000e8f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8F9 10988 bytes
SHA-256: e7b368303658c74f814fe5cc97cd047ac65585b488063bb960f1624a9e5028a9