Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2d2ce07868682f6…

MALICIOUS

PDF

78.9 KB Created: 2021-02-26 00:05:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: a6e59424678b6b0e7ba6182a6752b255 SHA-1: 79e553a72066da61a2bd3d9d03596ebbfa138166 SHA-256: d2d2ce07868682f6c8aa63f70e9727e262c520a3d1c9b13e91b6b619f8759196
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, appears to be a lure related to a popular media topic, suggesting a phishing or social engineering attack. No scripts were extracted, but the presence of external URIs indicates an attempt to redirect the user to a malicious site.

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://leonvi.ru/aws?utm_term=will+there+be+the+wolf+among+us+2 PDF link annotation
    • http://tokexal.medianewsonline.com/fry_sight_words_first_100.pdfIn PDF document text
    • http://kirakexig.mypressonline.com/zitumebun.pdfIn PDF document text
    • http://zaxevef.getenjoyment.net/total_quality_management_by_jayakumar.pdfIn PDF document text
    • https://cdn.sqhk.co/fokaladanolo/AjdzNZq/chinese_dramas_to_watch_on_netflix.pdfIn PDF document text
    • https://cdn.sqhk.co/pelebitebi/1heohbb/xuwadubidutuzofululide.pdfIn PDF document text
    • https://cdn.sqhk.co/webuzifinuno/ibhgigc/freedom_of_speech_definition.pdfIn PDF document text
    • https://cdn.sqhk.co/suzironanes/aggujgh/extreme_jet_ski_tour_miami_beach_fl.pdfIn PDF document text
    • https://cdn.sqhk.co/pakiwujipubi/decx3hh/roommate_apartment_contract.pdfIn PDF document text
    • https://cdn.sqhk.co/mukibusu/gvhbgiL/twisted_wonderland_azul_nsfw.pdfIn PDF document text
    • http://gakukuketisalum.scienceontheweb.net/xivakirelulurumarupek.pdfIn PDF document text
    • https://cdn.sqhk.co/lijusute/Gjbeshi/37523341212.pdfIn PDF document text
    • https://cdn.sqhk.co/remowiwa/htQ8hiG/photo_collage_editor_apk_free_download_for_android.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/meludixomenafokul.pdfIn PDF document text
    • http://gozenabuzixi.onlinewebshop.net/nigotukepuzazebarologoto.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/kudo_cards_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/amoeba_sisters_video_recap_of_mutations_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/bulalowisu/83295454624.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_off0000f6bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6BB 5556 bytes
SHA-256: 6a0ed6102ddca395fb70c14c415f6b4ea1ff76a6204ce98ef23920516561acaf
font_01_sfnt_off00010994.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10994 10736 bytes
SHA-256: ff524085fd35f5848597777421b501eeb5e21f83c160b9301d3782c72b86abe5

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