Malicious PDF — malware analysis report

Static analysis result for SHA-256 86e20cbadc9e45ab…

MALICIOUS

PDF

73.2 KB Created: 2021-02-19 16:37:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f43f7392a16c2d9cc9d73820c0618b89 SHA-1: 5aaacb09697292d5a054002dec1f8a8bf9a10b8f SHA-256: 86e20cbadc9e45ab4a20b30d6b4767004fdaf186140c30d48c81442f45e4839b
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'bologen.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to game guides, aiming to trick users into visiting the malicious URL. No scripts were extracted, but the presence of external URIs and the overall malicious verdict strongly suggest it's a phishing or downloader document.

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://bologen.ru/wix?keyword=lotro+trait+point+guide
    • http://leree6.club/zaxazigorezubama6uv2q.pdf
    • http://cleaner360.shop/fivunafe1c4b7.pdf
    • http://korecos.ru/lobaxatewy639.pdf
    • http://dragonflysagewellness.com/duraheat_dh2304_indoor_kerosene_heater44ti0.pdf
    • http://rodina38.ru/phrasal_verbs_with_come_quizaoflt.pdf
    • http://mx50off.pro/workbook_on_harmony_grade_6_answersv0bsd.pdf
    • https://cdn.sqhk.co/wazilisiko/jfjfgef/action_adventure_movies_on_netflix_canada.pdf
    • https://cdn.sqhk.co/vinasujitupe/fhhggid/dual_fuel_portable_generator_reviews.pdf
    • http://cleanup-sale.site/mitajulavemdfkz8.pdf
    • http://winoorama.fun/284869331039fmdl.pdf
    • https://cdn.sqhk.co/dizoketa/vjjQ11F/block_strike_apk_mod_dinheiro_infinito.pdf
    • http://sacredname.ru/environmental_impact_assessment_eia_guidelinesohot6.pdf
    • http://moymagazin.xyz/vowafstih9.pdf
    • http://lifeshop.pro/jukaz73dy7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tipakixulo.rf.gd/aambala_movie_songs_masstamilan.pdf
    • http://felakaselik.epizy.com/talentio_aptitude_questions_and_answers.pdf
    • http://zutosagu.rf.gd/fintrac_guidelines_identification.pdf
    • http://muzubakow.epizy.com/new_york_times_crossword_answers_0513.pdf
    • http://gegagino.epizy.com/15751045635.pdf
    • http://zawemitop.epizy.com/11909826729.pdf
    • http://jupanifoz.epizy.com/genotype_and_phenotype_practice_answer_key.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_off0000e2bf.bin
c08ab289418d7a8a973e03730fbdbb761914dfce8730565b3b9c4fbc59bf3fd3
pdf-font-stream PDF embedded font (sfnt) at offset 0xE2BF 4856 bytes
font_01_sfnt_off0000f357.bin
77f7b7a12939f8210a154b94bd3b54ea0ee8d7eeaae15a62675127e5831c9fff
pdf-font-stream PDF embedded font (sfnt) at offset 0xF357 10224 bytes