Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b016a0a78ef9509…

MALICIOUS

PDF

68.4 KB Created: 2021-04-01 23:24:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cbacdab9ea145e45cb85bee09cd2ba54 SHA-1: e7ecfce9cca42da2f01c7880fde7045f67afc1da SHA-256: 9b016a0a78ef950979096818e78acda5631fb44802ee268344bef0c45e91a59b
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, suggests a lure related to 'excel in computer pdf', aligning with the external URI's purpose.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pelibifir.ru/strik?utm_term=how+to+use+excel+in+computer+pdf
    • http://mikrotikwizard.com/pekigezimafobafaxur1c9j.pdf
    • https://cdn.sqhk.co/wibetaxor/Njdja88/crossroads_ford_apex_restaurant.pdf
    • http://leqqurint.online/monovoxepirinuxigusomiw6x075.pdf
    • http://zanartcc.net/encyclopedia_brown_keeps_the_peace0cwwb.pdf
    • https://cdn.sqhk.co/xagaxubibiz/gfidhia/69516241090.pdf
    • http://xusakarezexalu.iblogger.org/general_bacteriology_book.pdf
    • http://service-hire.com/cowboy_good_morning_imagesuybwx.pdf
    • https://cdn.sqhk.co/dufimogemeka/4bhhr1P/73590278326.pdf
    • http://dududuw.mypressonline.com/hanuman_chalisa_telugu_free_download.pdf
    • https://cdn.sqhk.co/sozivowemin/Jyhajfh/basketball_throwback_jerseys.pdf
    • http://pressit.space/how_did_education_change_during_the_1920si9yf5.pdf
    • http://gakesatigefa.22web.org/own_free_will_define.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://488c2ff9-9ff4-499e-8f11-525115e20b22.filesusr.com/ugd/8aba0c_fc9d2521b7344a6bafabb84b6f7a6772.pdf?index=true
    • http://gobofitis.epizy.com/adidas_youth_clothing_size_guide.pdf
    • http://fojemagiro.rf.gd/logical_connectives_questions_and_answers.pdf
    • https://6f8cb219-4830-455d-9ced-b55e65700e85.filesusr.com/ugd/fd30ac_bb60542373fb4309807b73d679d8e485.pdf?index=true
    • https://aefbb2f1-1cfc-4a48-aab2-d72547d84173.filesusr.com/ugd/2f3ac6_8afc19a0935e44a589fd50838ece5e5a.pdf?index=true
    • http://betakudo.atwebpages.com/vesatasud.pdf
    • http://xenavak.rf.gd/38708212883.pdf
    • http://zuwukab.rf.gd/lutusemurimisajo.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_off0000cf3b.bin
a8b78e4093beb27f52c658a70b8ca92e23b754c441d525f659bfc3e086fef875		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCF3B 5212 bytes
font_01_sfnt_off0000e0f2.bin
9e4ecdcc8c12e658fa16e8f21fcb4445926bb0b8c57ef1ff34b7d71455824b93		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F2 10368 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.