Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e078eabdc6b4f2c…

MALICIOUS

PDF

71.8 KB Created: 2021-02-14 00:41:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 6ffe26cd10f5ffc1dbd910d5f2c58064 SHA-1: d528e3f7e85dde6d22b85a5bddc14b9ee5be2dcd SHA-256: 4e078eabdc6b4f2c2436866ffe0460da374dd01b8ffef2a4d00b4e8a12b39ebc
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://druttle.ru/123?utm_term=discipleship+essentials+study+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4422631/normal_6015bcf566c34.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374860/normal_601726735c9f0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388160/normal_60081f20b351f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476273/normal_5fddd52dc026b.pdfIn PDF document text
    • https://vigakamodibit.weebly.com/uploads/1/3/4/7/134770941/057dad41fa9b0.pdfIn PDF document text
    • http://vipadminler.org/pixel_car_racer_hack_2019_downloadq1nim.pdfIn PDF document text
    • https://melazikadoxu.weebly.com/uploads/1/3/4/5/134594637/gedid.pdfIn PDF document text
    • https://cdn.sqhk.co/mejofiwog/QifjaKw/land_rover_defender_2020_price_uae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486200/normal_600aabe288c3a.pdfIn PDF document text
    • https://cdn.sqhk.co/delobepaziw/ghjif4W/photomath_app_icon.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/amended_tax_return_form_8863.pdfIn PDF document text
    • http://visagiza.epizy.com/envato_after_effect_template.pdfIn PDF document text
    • http://tuvufuxo.epizy.com/essence_writers_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/gst_annual_return_form.pdfIn PDF document text
    • https://s3.amazonaws.com/juliziwojatige/xuxufedavobaxodir.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_off0000dc26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC26 5340 bytes
SHA-256: 05ae0406aa34d8da768547d7ef42ef62c8b1bc56eb70b43aa8e56d4439657e97
font_01_sfnt_off0000ee60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE60 10880 bytes
SHA-256: 73ca653646093aeb5c09cf1842b3efa62f2f3ce16b3d9f39683c87567a7dc398