Malicious PDF — malware analysis report

Static analysis result for SHA-256 54b9d27f037baee3…

MALICIOUS

PDF

69.1 KB Created: 2021-02-26 10:00:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: b39923f3cb41be5bf15a841f5805b7e1 SHA-1: 2d45956332beaf11cb00c3bc16c51155bebd4b69 SHA-256: 54b9d27f037baee3edae6b72890cfe47d96fab1fba7bd371cb10e324b1078022
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/award?keyword=casio+hr+100tm+ink+walmart PDF link annotation
    • http://canonsburglake.com/69615219424ppp16.pdfIn PDF document text
    • https://lobalose.weebly.com/uploads/1/3/6/0/136089755/kedizinunerufo.pdfIn PDF document text
    • https://sipebiwamedewor.weebly.com/uploads/1/3/4/7/134707389/a3dbf787.pdfIn PDF document text
    • http://datinge.site/human_development_a_cultural_approach_3rd_edition_apa_citationz8497.pdfIn PDF document text
    • https://pujosudenavi.weebly.com/uploads/1/3/4/5/134508056/jukaf-zufaviz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465537/normal_602af885766fc.pdfIn PDF document text
    • https://pubedazemel.weebly.com/uploads/1/3/4/8/134870130/56f5958d00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427514/normal_6012381d8f452.pdfIn PDF document text
    • http://medebupima.sportsontheweb.net/los_5_lenguajes_del_amor_test_para_esposas.pdfIn PDF document text
    • https://tesajezu.weebly.com/uploads/1/3/1/4/131452821/jememokotaladedeb.pdfIn PDF document text
    • https://vulalubog.weebly.com/uploads/1/3/4/8/134862436/libakajezawonaset.pdfIn PDF document text
    • http://rowowesofazov.medianewsonline.com/51795640934.pdfIn PDF document text
    • http://folugomobok.getenjoyment.net/bemixebiwirexesek.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://faxiruvud.myartsonline.com/73524875602.pdfIn PDF document text
    • http://rabatelekovufar.myartsonline.com/the_book_thief_movie_age_rating_uk.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_off0000d26d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD26D 5180 bytes
SHA-256: e5911ab2bddd2e041260025a15bfaa44747422b1bd83b74e577a41e70e7567f5
font_01_sfnt_off0000e3ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3ED 10464 bytes
SHA-256: 267cd90d8cc688412557c6ac2eee1eee022fbb4f2b5bdef6484030931ce446cd