Malicious PDF — malware analysis report

Static analysis result for SHA-256 f66cd808f7598274…

MALICIOUS

PDF

81.3 KB Created: 2021-03-14 03:17:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 357d26692d1a9056aa2dcaa801ab7ef5 SHA-1: 19e848d9360aae527b4fceaec859a3f6a2e16f42 SHA-256: f66cd808f75982746396fa2e987130416b19c8a98fb88664001a5f8d4d872b81
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing campaign. The document body, though partially corrupted, suggests a lure related to travel information, aiming to trick users into visiting the malicious URL.

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://resalured.ru/strik?utm_term=cuando+se+puede+viajar+entre+provincias+en+galicia
    • http://fefiwizam.sportsontheweb.net/hp_officejet_7510_remove_printhead.pdf
    • http://bomepufibawil.scienceontheweb.net/79462211253.pdf
    • http://dujegud.getenjoyment.net/91064291935.pdf
    • http://pozijuza.scienceontheweb.net/hvac_test_questions_and_answers.pdf
    • https://bamigabimav.weebly.com/uploads/1/3/1/6/131636977/9449693.pdf
    • https://cdn.sqhk.co/zejegure/1xcl0f7/48363122956.pdf
    • https://cdn.sqhk.co/pegiridireva/Ihahfif/building_construction_powerpoint_templates.pdf
    • https://bazusatibewin.weebly.com/uploads/1/3/4/3/134374280/fozikisabuvani-sewojiwekaxusa-xutogagajexo-wafilut.pdf
    • https://cdn.sqhk.co/tosobulig/jihiL2b/ar_catch_22.pdf
    • https://cdn.sqhk.co/sefesolos/jiB1hjk/geometry_proofs_congruent_triangles_worksheets.pdf
    • https://cdn.sqhk.co/biziduwime/ehjwjgy/bobotadojemuzivejiwu.pdf
    • https://cdn.sqhk.co/gupetipek/rsgd0ig/viva_video_pro_video_editor_apk_free_download.pdf
    • https://kuvukodu.weebly.com/uploads/1/3/1/4/131453249/3678693.pdf
    • http://dimozakebaba.scienceontheweb.net/willingness_letter_to_join_job.pdf
    • https://cdn.sqhk.co/nuzitomizaj/hcJ1Bt2/rumukofafubovowuzizono.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://molodetagako.epizy.com/unix_shell_scripting_interview_questions_and_answers_for_experienced.pdf
    • http://zisuvedo.rf.gd/wiwetaniromorejolegim.pdf
    • http://kugunimekuxaf.epizy.com/93986875626.pdf
    • http://wuwinot.rf.gd/janapada_geetegalu_kannada.pdf
    • http://nesowoxaxisaxa.rf.gd/jumepibe.pdf
    • http://wubazinosimisod.rf.gd/65198482564.pdf
    • http://vobemumefirano.epizy.com/kated.pdf
    • http://fixiwerasame.rf.gd/rosemi.pdf
    • http://zatorir.epizy.com/platos_republic_summary_book_7.pdf
    • http://fovagewu.rf.gd/45516805270.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_off0000fe0a.bin
6c8fae121645121b83b721f1da5901a4cd6e55f14c21011f7e1521b4f767a442		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE0A 5280 bytes
font_01_sfnt_off00011019.bin
cf8e1fa4d92ced52d8164714b47979b21e4533f02500e3c87b1d5beadbdf2f81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11019 11636 bytes

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