Malicious PDF — malware analysis report

Static analysis result for SHA-256 38a86dd0759c1008…

MALICIOUS

PDF

75.6 KB Created: 2021-02-24 09:31:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: ebf47bebb26aa13c8342fc2bfbbd97b7 SHA-1: d9fec9eb827c68225f1ffa92eaffd155a1615a77 SHA-256: 38a86dd0759c10080036a714e44939c063453f5bf5bb6029867dbdf9599a1258
96 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that mimics a search query, likely intended to trick the user into visiting a malicious site. No scripts were extracted, but the presence of an external URI and the ML/ClamAV detections strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/wix?keyword=garden+treasures+gazebo+parts PDF link annotation
    • http://kyhni.site/35404895203yucy2.pdfIn PDF document text
    • http://bluhgang.best/25374750947h8gav.pdfIn PDF document text
    • http://dozawudefe.iblogger.org/salesforce_interview_questions_and_answers_on_triggers.pdfIn PDF document text
    • http://bighome.space/pong_3d_tableqewkf.pdfIn PDF document text
    • http://kupivse.xyz/husqvarna_7021p_blade_assembly6vetp.pdfIn PDF document text
    • http://abanca-electronica.com/the_flow_on_audiopkj2i.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pogebikaku.epizy.com/11976805989.pdfIn PDF document text
    • http://zezexef.epizy.com/desopugevajurefikebolif.pdfIn PDF document text
    • http://kesewoge.rf.gd/vikanebix.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/venture_capital_india_report_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxalowafokuvo/anemia_falciforme_sintomas_graves.pdfIn PDF document text
    • http://fovodikil.rf.gd/can_i_use_my_own_router_with_centurylink_internet.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/fafifob.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/xonadakibivewilez.pdfIn PDF document text
    • http://rugupodat.epizy.com/kimasulilu.pdfIn PDF document text
    • https://s3.amazonaws.com/nutanigonu/cbre_dubai_real_estate_report.pdfIn PDF document text
    • https://s3.amazonaws.com/miledu/28010882024.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_off0000ebe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBE8 5316 bytes
SHA-256: 8a6eaa8783b67d3c961100edba7546fe52e0b6d1c29fff7c617a1efdf2710939
font_01_sfnt_off0000fe0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE0F 10412 bytes
SHA-256: 54b58a89148882066ad96a553516d9002153ea9d22af4be13d06fe95736424e7

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