Malicious PDF — malware analysis report

Static analysis result for SHA-256 1046dc96e5c19691…

MALICIOUS

PDF

73.6 KB Created: 2021-03-18 03:40:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44c63cad88a51894f7d72709aa5d8a84 SHA-1: 7ba688566a24683d897c0d9173c6d4805633b8d9 SHA-256: 1046dc96e5c1969157b0018adc187222ade39991c3e610f562ed55ce1bad6870
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that points to a suspicious domain, identified by heuristics as a potential phishing or malware delivery vector. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a malicious site, likely as part of a phishing campaign.

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://midufefew.ru/wix?keyword=star+trek+technical+manual+value
    • https://cdn.sqhk.co/pofaxexaxi/hbjjhav/momentive_performance_investor_relations.pdf
    • http://duxeluwezix.iblogger.org/virkon_safety_data_sheet_uk.pdf
    • https://cdn.sqhk.co/xivovido/hfiagfO/oconomowoc_high_school_soccer.pdf
    • https://cdn.sqhk.co/napefabet/dgcRG2M/carry_on_jatta_movie_khatrimaza.pdf
    • http://wusapibixabupak.iblogger.org/wopojuwux.pdf
    • http://kuxni.su/mupawurufasekicj2pv.pdf
    • https://cdn.sqhk.co/zanemulazif/jeKShMc/vunafudonebafufofevu.pdf
    • http://vknacruckalaikov123.xyz/knight_of_swords_thoth_deck_meaningnxqfm.pdf
    • https://cdn.sqhk.co/baxoladipezu/gewhejR/kujamigugemodijom.pdf
    • http://jopagozopive.medianewsonline.com/que_es_el_contexto_social.pdf
    • http://xolokukifimiv.sportsontheweb.net/lodufiraf.pdf
    • https://cdn.sqhk.co/komagiju/08YOidH/68728562088.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://petetilazuji.epizy.com/lijesuvixodaxezepokilejel.pdf
    • http://xatulebebulife.rf.gd/emirates_id_application_form_print_out.pdf
    • http://ferumovixugixu.epizy.com/sound_of_silence_sheet_music_piano.pdf
    • http://pojozija.onlinewebshop.net/wevixugumuwijaveninobo.pdf
    • http://faloboxodutak.epizy.com/temumulafedu.pdf
    • http://wabiredozu.rf.gd/ferubo.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_off0000e0c1.bin
9abfcc8499fbf62b608ae6446a0565da8a42ba1aaa0c32167e874e9694dda8f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C1 5088 bytes
font_01_sfnt_off0000f1f2.bin
aff23b8287d471c5e4f8e90b1a7c8d180dc8182ee8216fc274a0cf216af914a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF1F2 11500 bytes

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