Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea2a3aa571c89306…

MALICIOUS

PDF

73.2 KB Created: 2021-02-17 23:40:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 18ff6d8610ef80b8faa205a336754b66 SHA-1: 209e1d3208e5de4a4e78e19a291191b369cfae45 SHA-256: ea2a3aa571c89306cf5f88b1bba564172d39184e6e5125eb65f6f4413f8e9974
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website disguised as a guide for changing a Schlage deadbolt lock. This URL is likely a phishing lure to redirect users to a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

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://jacksth.ru/aws?utm_term=how+to+change+schlage+deadbolt+lock PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4486984/normal_6025fe9620caf.pdfIn PDF document text
    • http://idealica-italiaufficiale.website/98580516124bgbro.pdfIn PDF document text
    • http://bbcua.site/pokecord_bot_discordo5fzz.pdfIn PDF document text
    • http://cardioactiveitalia.site/593171802911dsdl.pdfIn PDF document text
    • http://renijulemigato.iblogger.org/73942484635.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369907/normal_601fd25fa9da1.pdfIn PDF document text
    • http://gulexamotapa.iblogger.org/37215319549.pdfIn PDF document text
    • http://muvibigi.22web.org/arcade_games_free_for_windows_10.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/polojuliragam/lincoln_film_questions_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/sewamos/vomumemiduni.pdfIn PDF document text
    • https://s3.amazonaws.com/gavapozalilup/wowarefapimobazome.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/88052957763.pdfIn PDF document text
    • https://s3.amazonaws.com/tosevud/castlevania_netflix_imdb_parents_guide.pdfIn PDF document text
    • http://raxusitusumulag.rf.gd/jotobowajomolorajumivuvo.pdfIn PDF document text
    • http://kawojimulogizef.rf.gd/sheet_sizes_in_inches_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/tijemotokuwesarajewuwabax.pdfIn PDF document text
    • http://ninanupazazudad.rf.gd/how_to_connect_motorola_baby_monitor_wifi.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromopelurab/pdf_file_viewer_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/philips_led_t8_spec_sheet.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d604.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD604 5100 bytes
SHA-256: db57c9d55c92f689049c0f38be7ec9ca450b920c5d7562464bf86800b1e0cfcc
font_01_sfnt_off0000e764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE764 9936 bytes
SHA-256: 4b0272abca760fe79c72ab61db715a80473a8adb1a886e97eb95a630db98a314
font_02_sfnt_off0001095f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1095F 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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