Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4d6cd88358b1d7e…

MALICIOUS

PDF

84.7 KB Created: 2021-03-29 10:10:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a224d00063977fca459b01b1902acb1 SHA-1: df89f2b547cf219bba4fa415183b57b1e12c7c69 SHA-256: d4d6cd88358b1d7eac5992e3f568c4dc5d32798fa9c18eb809726c979c139d92
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of external URIs suggests the document is designed to redirect the user to a malicious site, potentially for further exploitation.

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://vilenefex.ru/award?keyword=swot+analysis+nestle+company+pdf
    • http://xodaxedepapopox.mygamesonline.org/ruronukotetokotirifiladot.pdf
    • https://cdn-cms.f-static.net/uploads/4422163/normal_6029aa08ddf16.pdf
    • https://cdn-cms.f-static.net/uploads/4464878/normal_603812bcd275d.pdf
    • http://foxiduwanati.mygamesonline.org/badinerie_score.pdf
    • http://lavazapunizala.iblogger.org/miele_vacuum_repair_near_me.pdf
    • http://gopadaxin.mywebcommunity.org/turezutipidemojufapek.pdf
    • http://xijonofupawulo.mypressonline.com/what_is_amplitude_shift_keying.pdf
    • https://cdn-cms.f-static.net/uploads/4394068/normal_6051cf500d52e.pdf
    • http://zuxuvikewi.sportsontheweb.net/apa_style_citations.pdf
    • https://cdn-cms.f-static.net/uploads/4480904/normal_601bd36b9b6c2.pdf
    • http://kigonowepim.iblogger.org/calendario_escolar_2019-20_sep_puebla.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6c361d23-e2eb-4ad5-b72d-18a2e5b481cc/what_is_use_of_aggregate_planning.pdf
    • http://danebusuji.onlinewebshop.net/tu_ardeal_versuri.pdf
    • http://jubogaju.atwebpages.com/belavetotemuxipetapizal.pdf
    • https://uploads.strikinglycdn.com/files/0d6a74b6-be88-4d86-be97-0832324a8c6e/jekikodidenuvomo.pdf
    • http://xisuwujilaxemer.myartsonline.com/character_emotions_chart.pdf
    • https://s3.amazonaws.com/tobaziw/magic_chef_rv_stove_knobs.pdf
    • https://uploads.strikinglycdn.com/files/ef6bdd7b-3319-4212-afc5-1d442cbf0010/death_note_japanese_movie_ryuk.pdf
    • https://uploads.strikinglycdn.com/files/433e31c7-d363-48bf-a176-09933fcebff5/ar_15_night_vision_scope_price.pdf
    • http://sesunofopum.epizy.com/deadlock_in_dbms.pdf
    • https://s3.amazonaws.com/jolituzoji/anodized_aluminum_sheet_suppliers.pdf
    • https://uploads.strikinglycdn.com/files/356f915d-d681-421b-9801-b540f30e3224/sonic_large_tater_tots_with_cheese_calories.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010d85.bin
3aa2683df8da55dc9c9eede080e6d0dee76c4adfe4746a95e1afb8e288f92261		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D85 5504 bytes
font_01_sfnt_off00012057.bin
3973a1f1a3060927dbb7272e73aa6ea479fe6514a601699bb8bc3aa042d0c103		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12057 10920 bytes

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