Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e2e0ac00539f695…

MALICIOUS

PDF

79.3 KB Created: 2021-04-04 07:56:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 8b89ecb3708e999d325d5a787fecd98f SHA-1: 4f79925f40b6f191003646cd99e5a6ddf7b5676c SHA-256: 4e2e0ac00539f69557014882a92723318b8a5ef583633f6cdc31df5a9df62f3a
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit users through deceptive content.

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://maypoin.ru/strik?utm_term=how+is+dr+heidegger+experiment+a+romantic+story PDF link annotation
    • http://xonitaj.mywebcommunity.org/63580961012.pdfIn PDF document text
    • http://biniwitovo.mywebcommunity.org/romeo_juliet_kangal_thirakkum_video_songs_download.pdfIn PDF document text
    • https://cdn.sqhk.co/rijomawonuj/giagdkZ/bitasiv.pdfIn PDF document text
    • https://cdn.sqhk.co/mivijigonof/iaVzZyB/chicken_shack_near_me_open.pdfIn PDF document text
    • http://jalazekesofijot.medianewsonline.com/zezipatitosugagezotinuni.pdfIn PDF document text
    • http://mijuxub.66ghz.com/xukoduzeluzamuledizu.pdfIn PDF document text
    • http://peromopativej.mypressonline.com/how_to_mix_single_stage_auto_paint.pdfIn PDF document text
    • http://vivekawiga.sportsontheweb.net/esl_adjectives_to_describe_personality.pdfIn PDF document text
    • http://rawitotizoxuk.scienceontheweb.net/arduino_sinhala.pdfIn PDF document text
    • http://gagogepatajebe.medianewsonline.com/introduction_to_embedded_systems.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xanatilaguweve.epizy.com/autism_spectrum_disorder_fact_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/97107997324.pdfIn PDF document text
    • http://kibowetesuve.rf.gd/gosaxinojobokagusexatu.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/6122307280.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1d9eeb9-e53b-4f37-8cad-b2b475019c32/41721622067.pdfIn PDF document text
    • http://lupipabibokaf.rf.gd/pieces_de_la_maison_exercices.pdfIn PDF document text
    • http://bifovigavij.myartsonline.com/business_intelligence_planner.pdfIn PDF document text
    • https://s3.amazonaws.com/sojaxub/casio_cgp_700bk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9171fec-8ec3-49e7-a26d-bb0e1712afdf/streetcar_named_desire_themes_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/bandcamp_er_firefox_addon.pdfIn PDF document text
    • https://s3.amazonaws.com/tiniruru/the_crown_season_3_episode_3_actors.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_off0000f755.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF755 5680 bytes
SHA-256: 684cac7dbaeb63151c84b330c67c8f9a2545c390dd02392cba919cac9bf99e35
font_01_sfnt_off00010a8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A8F 11388 bytes
SHA-256: 411f70aca9b967b673f6de4abba7be677a4d2a416c5351b66c5c299e0ac17488

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