Malicious PDF — malware analysis report

Static analysis result for SHA-256 892e842841760c0c…

MALICIOUS

PDF

72.2 KB Created: 2021-03-28 00:47:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e7780e6db8eda49ccdaa7b2324378d9b SHA-1: 9995aa0472003ed15bbdc18e9190223265ecec23 SHA-256: 892e842841760c0cce4d7eb7e0891b8a380c082791bd0fc67607e2b2abc86a3d
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://gimoguvi.ru/strik?utm_term=nlt+bible+app+audio PDF link annotation
    • http://tvoeobrazovanie.fun/spreadsheet_for_household_finances_ukpyz1t.pdfIn PDF document text
    • http://kafixerutatad.iblogger.org/sanapomobitamafofaxa.pdfIn PDF document text
    • http://teachost.com/levons_les_yeux_voici_la_vraie_lumiuw9wq.pdfIn PDF document text
    • http://stankoff.org/34680864413g0hz2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426953/normal_6044fa5cc551e.pdfIn PDF document text
    • http://carbackseat.site/18434497732uoa2o.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://misebupafavo.rf.gd/newobiditasemegizanuwo.pdfIn PDF document text
    • https://s3.amazonaws.com/tosego/erd_case_study_examples_with_solutions.pdfIn PDF document text
    • https://s3.amazonaws.com/miledu/75071333958.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/91776872511.pdfIn PDF document text
    • https://s3.amazonaws.com/subopukomanaw/manifestation_miracle_review.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/cross_connection_control_survey_report.pdfIn PDF document text
    • http://jutebef.rf.gd/10386158955.pdfIn PDF document text
    • https://s3.amazonaws.com/zexozavo/31912792055.pdfIn PDF document text
    • https://s3.amazonaws.com/pubopelej/zevedogogog.pdfIn PDF document text
    • https://s3.amazonaws.com/wogikokuzotaxa/cathodic_protection_inspection_report.pdfIn PDF document text
    • http://turikumulalevi.rf.gd/how_to_open_a_safe_sentry_safe.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/alphabet_chart_free.pdfIn PDF document text
    • https://s3.amazonaws.com/luropi/kumon_workbook_free.pdfIn PDF document text
    • http://duxejuxaxeze.epizy.com/jebevuwajimaxasatituj.pdfIn PDF document text
    • https://s3.amazonaws.com/tojazudibumogab/ejercicios_trigonometria_secundaria.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/eeg_report_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/54329037255.pdfIn PDF document text
    • https://s3.amazonaws.com/fogibi/sakegex.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_off0000df71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF71 4788 bytes
SHA-256: 7a839c9f5537c31d1bb5a07f82ad3c9ec5dda59fafe0c564793aa0bea44f8dcd
font_01_sfnt_off0000efc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC9 10736 bytes
SHA-256: 9b151cbc1c3e5c3b6b6e0e0d8f5b736dcd029488a49867f18b50aaf4822c0e89

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