Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6b14a2fd94266fe…

MALICIOUS

PDF

69.0 KB Created: 2021-03-10 07:50:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c7fe77752a53c09cf01d9c9a9b4b7dc8 SHA-1: 2c398c13a846608027a808b64084746f45632197 SHA-256: b6b14a2fd94266fefd8cc62dd3ccbb049003e5671e9727f2e8d7c6332e3a303c
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 numerous embedded URLs, one of which, 'https://soxebez.ru/aws?utm_term=nixon+time+teller+milanese+black', is directly referenced by a PDF_URI heuristic. The document body, though heavily obfuscated, appears to contain metadata related to product names and application details, suggesting a lure to a malicious site disguised as a product listing. No scripts were extracted, but the presence of external URIs indicates an attempt to redirect the user to a potentially harmful resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://soxebez.ru/aws?utm_term=nixon+time+teller+milanese+black
    • http://zezasarasojid.mywebcommunity.org/best_english_swahili_dictionary_app.pdf
    • http://tulavesew.getenjoyment.net/staples_stuck_in_swingline_heavy_duty_stapler.pdf
    • https://cdn.sqhk.co/rapovebakeb/tT6hjwi/bowmaster_prelude_download_pc.pdf
    • https://cdn.sqhk.co/salenasova/zgjdNig/rechargeable_aa_lithium_batteries_australia.pdf
    • https://cdn-cms.f-static.net/uploads/4451575/normal_6035031e1b363.pdf
    • https://static.s123-cdn-static.com/uploads/4476453/normal_5fec21379a4fe.pdf
    • https://cdn.sqhk.co/lowilufape/jfr4geq/93612237219.pdf
    • http://jijomaj.getenjoyment.net/zekegufaxuwek.pdf
    • http://lajodibibodi.getenjoyment.net/excel_spreadsheet_examples_for_students_download.pdf
    • https://cdn.sqhk.co/jurufovowufu/jebygeW/jokis.pdf
    • https://cdn-cms.f-static.net/uploads/4408461/normal_603782cc0caed.pdf
    • https://cdn-cms.f-static.net/uploads/4383561/normal_6030790f7726e.pdf
    • https://cdn-cms.f-static.net/uploads/4383156/normal_600c3de49cd46.pdf
    • http://morasuxod.getenjoyment.net/urban_tantra_training.pdf
    • https://cdn.sqhk.co/rarinuva/iAVgg7n/pomirogopupazanewizazi.pdf
    • http://bexixibeguben.sportsontheweb.net/the_crown_season_3_episode_6_fact_check.pdf
    • http://lobabinuladeri.medianewsonline.com/vuridokufesefamalu.pdf
    • http://punejew.mygamesonline.org/84184466196.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xotaferuju.myartsonline.com/sawofizumadegiwopupef.pdf
    • http://wutejaxevewef.myartsonline.com/the_complete_idiots_guide_to_music_theory_by_michael_miller.pdf
    • http://raxajabidadida.onlinewebshop.net/how_to_use_casio_graphing_calculator_fx-9860gii.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_off0000d14d.bin
a0e4337806ff6043db8e1c42ab2807c594ee96515bd11575af5450089b09119e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD14D 5184 bytes
font_01_sfnt_off0000e2e1.bin
6cf6e99bf9409d177af8de9fe65d7b36174dfc1fde8ee72abe5b7a90ac119663		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E1 10592 bytes

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