Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2fd750ad9eb3927…

MALICIOUS

PDF

79.6 KB Created: 2021-03-31 17:49:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 43e095549bf3d8c61648ae14808089bc SHA-1: 057ed11feae51304cfbd1fee4ec6c1f4016f0d65 SHA-256: e2fd750ad9eb3927741c3491d4df3d2f838f14bb2e5a75dc2a18689dad86e0f8
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'vilenefex.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to AutoCAD commands and notes, aiming to trick the user into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://vilenefex.ru/award?keyword=autocad+commands+notes+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4418171/normal_5feb7704b71ae.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388612/normal_5ff17e1e8884d.pdfIn PDF document text
    • http://smcjd.com/which_garmin_watch_has_golf_courseshfw1d.pdfIn PDF document text
    • http://ribupisid.22web.org/rupibolif.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371523/normal_5ffcd19024224.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372955/normal_5ffbccc6df78d.pdfIn PDF document text
    • http://hopecommunitynaz.com/wowewimazidojasesie0rqr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380854/normal_60089e7217ad6.pdfIn PDF document text
    • http://vk-settings-change.online/propiedades_quimicas_de_los_materiales_dentaleskk8zc.pdfIn PDF document text
    • http://thestablestl.com/juxujabujipiwulotunewamea0j8r.pdfIn PDF document text
    • http://dozixolabizije.iblogger.org/wamatalu.pdfIn PDF document text
    • http://harmony-market.ru/morawedipewosvs8fb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://resawopo.epizy.com/1830702444.pdfIn PDF document text
    • http://mafevinojoxumul.epizy.com/wastewater_treatment_research_paper.pdfIn PDF document text
    • https://s3.amazonaws.com/zosevid/navy_nec_9502.pdfIn PDF document text
    • http://xitisif.rf.gd/17670408325.pdfIn PDF document text
    • https://s3.amazonaws.com/befafuni/does_your_mother_know_sheet_music.pdfIn PDF document text
    • http://kuwalenidil.epizy.com/72561987586.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/dr_bruce_lipton_biology_of_belief.pdfIn PDF document text
    • http://navipulazem.epizy.com/como_se_calcula_molaridad_de_una_solucion_acuosa.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/onitsuka_tiger_size_guide_uk.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_off0000f97c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF97C 5160 bytes
SHA-256: e658d5508ea13194a6c142b21a6faa6aca0b17a22b10644435e09f398187e3ee
font_01_sfnt_off00010b03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B03 10764 bytes
SHA-256: 862b363406673420d4aaba19b244e7062e7b62a87a790943e6fc218ac1a8feee

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