Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a0d027700851636…

MALICIOUS

PDF

84.3 KB Created: 2021-03-19 21:46:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad0bcfedd064a1a7adf14f926be8ba4d SHA-1: 224ac7cee7aa2873cadd563ebd37f6e38915cc7b SHA-256: 2a0d0277008516360c6df2fb89c95be72190828093a2f39f7ea2da6b3f3cc9aa
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains an embedded URL pointing to a phishing website. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The embedded URL is the primary indicator of compromise, likely leading to further malicious content or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://mezovuduw.ru/wix?keyword=othinus+respect+thread
    • http://ratedewu.scienceontheweb.net/guzarasesemidunagokusubom.pdf
    • http://jefijunanupe.sportsontheweb.net/difference_between_hydraulic_and_pneumatic_system.pdf
    • http://pivojowemetobiv.mywebcommunity.org/46554245053.pdf
    • http://wivevadevenumet.mywebcommunity.org/on_green_dolphin_street_miles_davis_transcription.pdf
    • http://dosubodanes.mypressonline.com/zilabexobemafadivufosigot.pdf
    • http://rofuxipof.mywebcommunity.org/84485382388.pdf
    • http://bajesiradevo.getenjoyment.net/menuf.pdf
    • http://ravasixojodari.mygamesonline.org/24787357308.pdf
    • http://mesutilixuta.sportsontheweb.net/24701962396.pdf
    • http://ramidavukul.medianewsonline.com/dutowodi.pdf
    • http://mejumafegebameg.mygamesonline.org/broken_vessels_chords.pdf
    • http://zomaragexavope.sportsontheweb.net/bachs_cello_suite_no._1_movie_soundtrack.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zexozavo/play_android_games_on_pc_free.pdf
    • http://fugufaza.myartsonline.com/86585636312.pdf
    • https://s3.amazonaws.com/getizar/type_1_diabetes_fact_sheet.pdf
    • https://s3.amazonaws.com/nakuzafol/stanford_design_thinking_free_course.pdf
    • https://s3.amazonaws.com/wizakokowe/how_to_program_s10-s3_uverse_remote.pdf
    • http://masemipeba.myartsonline.com/angiosperm_file.pdf
    • https://s3.amazonaws.com/kagedatabujo/muvonij.pdf
    • http://lawesiwewif.onlinewebshop.net/94408451646.pdf
    • https://s3.amazonaws.com/besafefaf/97893852695.pdf
    • https://s3.amazonaws.com/zurovajij/23086569721.pdf
    • http://tuzuxutetug.atwebpages.com/risk_management_process_in_construction.pdf
    • https://s3.amazonaws.com/najubu/kolkata_to_sikkim_tour_guide.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010d56.bin
422dd70939569fb0328f165ea1ce5f360c9b106075e1ce3306760cacaff48f30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D56 5156 bytes
font_01_sfnt_off00011ed2.bin
3c2f1b07664332fb6b3f857eb3a782b6666af39405b452874b7b36cac83163ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11ED2 10856 bytes

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