Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2ff16e0e6ba4260…

MALICIOUS

PDF

72.3 KB Created: 2021-03-06 20:20:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1cbc4968bc43cf238be98259a76cd089 SHA-1: 99f392a45fc237a63e185b8cce4b57f9d9e76571 SHA-256: f2ff16e0e6ba4260ba9e17e1b0fe7fa2c8ad5c9a76f830538bf2be51cce61d3c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • 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.
  • 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://jacksth.ru/wix?keyword=auto+fundamentals+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4410462/normal_6034c2e9c78b8.pdfIn PDF document text
    • https://lubavezutumeji.weebly.com/uploads/1/3/4/7/134757539/fikuduwuro-vupejubew-duzojiw.pdfIn PDF document text
    • http://gedatidigog.sportsontheweb.net/vafetavokuvujetan.pdfIn PDF document text
    • https://zanirifut.weebly.com/uploads/1/3/1/4/131407922/fukifizupuki.pdfIn PDF document text
    • https://letateworu.weebly.com/uploads/1/3/4/3/134365764/9449033.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408460/normal_5fdb6e18e28a2.pdfIn PDF document text
    • https://zonotilikoper.weebly.com/uploads/1/3/1/0/131071062/menexi.pdfIn PDF document text
    • http://xubanapirobula.mypressonline.com/formato_minuta_de_reunion_en_word.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455659/normal_60438ddb2265e.pdfIn PDF document text
    • https://resagivet.weebly.com/uploads/1/3/1/3/131383325/mokifajipa.pdfIn PDF document text
    • http://fulokixowo.scienceontheweb.net/8087208891.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481064/normal_5fd619b1647c4.pdfIn PDF document text
    • https://duwawituku.weebly.com/uploads/1/3/4/3/134306950/gawozekaxi.pdfIn PDF document text
    • http://pujasaros.iblogger.org/sql_guide_download.pdfIn PDF document text
    • https://fikuvigobe.weebly.com/uploads/1/3/4/5/134582673/fefesodiwubedo-bakosuge.pdfIn PDF document text
    • https://gilaxaled.weebly.com/uploads/1/3/1/4/131438091/e5868334a6.pdfIn PDF document text
    • http://jakafat.22web.org/football_commentary_video_free.pdfIn PDF document text
    • https://jexabuwojese.weebly.com/uploads/1/3/1/3/131384148/pulusikeburuto.pdfIn PDF document text
    • https://kelebewo.weebly.com/uploads/1/3/4/3/134359650/54d0e30f3.pdfIn PDF document text
    • https://todumubisopid.weebly.com/uploads/1/3/5/3/135312552/jalirowusowaviviniko.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sisawujeza.rf.gd/54035721627.pdfIn PDF document text
    • http://sotixavar.epizy.com/mackie_vlz_vs_vlz_pro.pdfIn PDF document text
    • http://nukivamo.myartsonline.com/how_to_fix_a_leaking_refrigerator_ice_maker_water_line.pdfIn PDF document text
    • http://tebaputazaxuva.myartsonline.com/54858819480.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_off0000de26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE26 5080 bytes
SHA-256: f08c8b59be0251006b6da80e4710d4f67a990589d1489ba718e08b72957c9a10
font_01_sfnt_off0000ef63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF63 10720 bytes
SHA-256: f6edee7eb8daf75a17d24b5dbf912a2adb09f292141082a3553cd8603b2678db

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