Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e348412b0d268bd…

MALICIOUS

PDF

76.1 KB Created: 2021-04-02 06:26:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: f424fbce69fb8d90a2e9ffa6c518b136 SHA-1: 7e41ef5ca0b3700a1d5dea60aee721365d92d3e8 SHA-256: 6e348412b0d268bd1a2ed3856bfce6c7ae624cb334295368501f89023302d602
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, fokemale.ru, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, appears to be a lure related to vehicle maintenance, designed to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://fokemale.ru/strik?utm_term=what+kind+of+oil+does+a+2015+lexus+rx+350+take PDF link annotation
    • http://oneitstore.pro/cognitive_behavioral_therapy_interventions_for_depressionthzjl.pdfIn PDF document text
    • http://itravelgr.com/how_much_is_a_2015_jeep_wrangler_rubiconsf1fx.pdfIn PDF document text
    • http://edevletorg.com/41657421871rcu7k.pdfIn PDF document text
    • http://sonasutos.mywebcommunity.org/l_alphabet_phonetique_francais.pdfIn PDF document text
    • http://my-favshop.online/wamonewalu817bm.pdfIn PDF document text
    • http://detonic-official.website/mofumakamiga2xbn1.pdfIn PDF document text
    • http://wejowadizabudex.mypressonline.com/root_samsung_galaxy_s5_active_att.pdfIn PDF document text
    • http://kmikaerfs.ru/theological_terms4fes2.pdfIn PDF document text
    • http://nasporte1.fun/40859684404vwu0u.pdfIn PDF document text
    • http://raisinshq.pro/zoluvexekiregoxukiderofi621kb.pdfIn PDF document text
    • http://afracheat6.xyz/ejemplos_de_actas_de_reunion_de_trabajoygtaf.pdfIn PDF document text
    • http://ig-about.net/are_krk_rokit_5_good_for_mixingnlhp9.pdfIn PDF document text
    • http://irisca.online/groomsmen_speech_templatez24tb.pdfIn PDF document text
    • http://xogunajeraxuda.mywebcommunity.org/brief_calculus_an_applied_approach_10th_edition.pdfIn PDF document text
    • http://soldatskaya6.ru/will_there_be_a_4th_fifty_shades_of_grey_bookyt28h.pdfIn PDF document text
    • http://pedron.fun/prentice_hall_literature_the_british_tradition_teachers_edition90i6o.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/cambridge_audio_dacmagic_xs_android.pdfIn PDF document text
    • https://s3.amazonaws.com/tarizirefevifab/befojalakad.pdfIn PDF document text
    • https://s3.amazonaws.com/luworizesupox/lagu_final_produce_x_101_boyness.pdfIn PDF document text
    • https://s3.amazonaws.com/vofadoloves/how_to_become_an_electrician_in_florida.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxegu/37902705863.pdfIn PDF document text
    • https://s3.amazonaws.com/xowasosuf/16491339312.pdfIn PDF document text
    • https://s3.amazonaws.com/tugafebip/37468023612.pdfIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/zazoxopi.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/engineering_guide_northrend.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/interstellar_piano_sheet_music_patrik_pietschmann.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_off0000ea1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA1C 5756 bytes
SHA-256: f16d1643dff055cc1db060027488f17715049d907c8203cacaf025ff95fe1e3e
font_01_sfnt_off0000fdcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDCB 10760 bytes
SHA-256: 80cd581631fcd2c6bc5c2e9b82b9e004bd54332deaa8d968d0735ea3286376b8

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