Malicious PDF — malware analysis report

Static analysis result for SHA-256 18db393edff315cb…

MALICIOUS

PDF

71.6 KB Created: 2021-02-13 04:25:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 31055595602211f6f4aa41a0951c403e SHA-1: dbc467cb267545aa7d114edf834eb89e18fb4303 SHA-256: 18db393edff315cb7cb78ac3ae451ab4eda7c10fe2ff8d712a586df22ec99b1b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://druttle.ru/wix?keyword=capas+de+la+tierra+en+ingles PDF link annotation
    • https://cdn.sqhk.co/wovupeni/jjyicje/9584149029.pdfIn PDF document text
    • https://cdn.sqhk.co/votojuxosaf/y0ighgf/17185797396.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503584/normal_60271dcdb3155.pdfIn PDF document text
    • https://cdn.sqhk.co/domuduxuro/pgjSBgT/79953313040.pdfIn PDF document text
    • https://zovakobazala.weebly.com/uploads/1/3/1/4/131456363/4378286.pdfIn PDF document text
    • https://cdn.sqhk.co/tedalome/f7icQjj/62961250097.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393489/normal_5ffd294d295ef.pdfIn PDF document text
    • https://cdn.sqhk.co/daxerarugak/Tyggifw/rirebawutigawogixigi.pdfIn PDF document text
    • http://kozijadeji.22web.org/77585133844.pdfIn PDF document text
    • https://wilubiluzitewi.weebly.com/uploads/1/3/1/4/131413550/f85404f.pdfIn PDF document text
    • http://kedejivebirago.iblogger.org/78015078397.pdfIn PDF document text
    • https://seruvexude.weebly.com/uploads/1/3/4/4/134404645/3819917.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413564/normal_6011e07555f1c.pdfIn PDF document text
    • https://cdn.sqhk.co/mujekesire/aichbXU/evolution_synonyms_in_different_languages.pdfIn PDF document text
    • https://siwuluwavati.weebly.com/uploads/1/3/4/7/134756127/2877708.pdfIn PDF document text
    • https://kofovozeregom.weebly.com/uploads/1/3/4/3/134313602/824a40c4e95e4ab.pdfIn PDF document text
    • https://rurinigumiza.weebly.com/uploads/1/3/5/3/135350695/5817855.pdfIn PDF document text
    • https://cdn.sqhk.co/vesagivara/HBticLL/schleich_adventskalender_farm_world_2016.pdfIn PDF document text
    • https://totaduwuvib.weebly.com/uploads/1/3/0/9/130969262/32a4c28cd661.pdfIn PDF document text
    • https://sezebotari.weebly.com/uploads/1/3/1/6/131636698/jodanexojaxeniboje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425933/normal_601b43a11cb27.pdfIn PDF document text
    • https://cdn.sqhk.co/mezomabesoki/LhjfVNd/brutal_hockey_fights.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_off0000da1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA1F 5032 bytes
SHA-256: b88bcd062b8c0b681aca5c7b58cb96426d8a3878b199a406126a73eccd65f46b
font_01_sfnt_off0000eb45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB45 11248 bytes
SHA-256: 491be3615784d88dac506664be746a206716130a0120f45670a17c5dcbf31cc9

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