Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ded13db7131e244…

MALICIOUS

PDF

81.3 KB Created: 2021-03-05 22:04:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 95779c25f25d0b7bd9a0ddae3c92538f SHA-1: 7680ac933dda737f050cbc41daa9e02f1475f51f SHA-256: 0ded13db7131e2449c3450eb332cd762c275c5764a38d4a6aa92ebac30217572
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=how%20to%20crack%20pdf%20password%20using%20john%20the%20ripper PDF link annotation
    • http://copyrighytsupport.com/winezakevizuwaxitonogkuo6b.pdfIn PDF document text
    • http://jijufopofe.iblogger.org/zutifevumelebuzogabutu.pdfIn PDF document text
    • https://tozilamuvopodes.weebly.com/uploads/1/3/5/9/135966944/3096819.pdfIn PDF document text
    • https://vawevoza.weebly.com/uploads/1/3/1/4/131482963/zawewufoma.pdfIn PDF document text
    • https://zelogevoge.weebly.com/uploads/1/3/1/4/131483318/5427738.pdfIn PDF document text
    • https://wemafijape.weebly.com/uploads/1/3/4/7/134775870/jukijokoruju.pdfIn PDF document text
    • http://organic100.fun/can_an_ipod_nano_battery_be_replacedukopi.pdfIn PDF document text
    • http://jezuxomedoz.iblogger.org/87242406719.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://67258aaf-84c5-4a88-bfd2-1aa7ddb6c27a.filesusr.com/ugd/850f07_47e4c1022a434d8bbde9360dfa46e46b.pdf?index=trueIn PDF document text
    • http://ladinuronabo.epizy.com/where_is_george_foreman_grill_made.pdfIn PDF document text
    • https://76ed6b59-b034-43ac-b949-e1c08f76e3cb.filesusr.com/ugd/ee6100_0ad5394fdfdd4ba29a492cb9472f61d0.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/246052f3-1d42-412f-b429-64ee92fd0443/most_uncommon_last_names_in_australia.pdfIn PDF document text
    • http://vikogen.epizy.com/list_of_saturated_fatty_acids.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13b2fd04-bc24-4523-b837-912b21c235ea/13803977838.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/501bbed1-8464-4988-a388-d1e251d0abfb/lodemugiziv.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_off0000fcbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCBD 5580 bytes
SHA-256: 89ace4752d29398d4f2ede39702ca49c30bf02efc52d7ce448d96f48f6698099
font_01_sfnt_off00010fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FCB 12124 bytes
SHA-256: af6dbf90d24fd538593ce70f4652847b9ee3c8f4d28819d867a5e601ce080261