Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fc6b968e7856102…

MALICIOUS

PDF

70.9 KB Created: 2021-03-25 03:44:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: da1588d54e4d660e3a31bf850c008226 SHA-1: 0f68fa90dee942761317d5e1d9831baa02fca7a7 SHA-256: 9fc6b968e7856102eeceeaaec211858842f262415bee5dbcc7191f3e29fb8e57
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. The embedded URL points to a suspicious domain, suggesting it is used to deliver a payload or redirect to a phishing site. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to exploit vulnerabilities or trick users into visiting malicious links.

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/strik?utm_term=guitar+chords+for+i+love+you+too+much+book+of+life PDF link annotation
    • https://cdn.sqhk.co/gazegarov/ghjfggZ/60940326146.pdfIn PDF document text
    • https://cdn.sqhk.co/xojapafe/b64kwhk/callaway_gardens_resort_pet_friendly_cabins.pdfIn PDF document text
    • http://faxusupovetek.sportsontheweb.net/turtle_beach_xp400_xbox_series_x.pdfIn PDF document text
    • https://cdn.sqhk.co/nejisakatok/dAjgfY4/santorini_deland_gluten_free_menu.pdfIn PDF document text
    • http://bibopasaxuvibu.mypressonline.com/ritepijovexikubuzabuf.pdfIn PDF document text
    • https://cdn.sqhk.co/nowavutu/xlshfX5/snow_atv_bike_racing_2019_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/vumorumuvogi/bgfiiLQ/jowoxerigumojim.pdfIn PDF document text
    • https://cdn.sqhk.co/zedazisem/YXT2PVO/88156183794.pdfIn PDF document text
    • https://cdn.sqhk.co/xefijumu/idv5eYN/nostalgia_cotton_candy_maker_replacement_extractor_head.pdfIn PDF document text
    • https://cdn.sqhk.co/metumolalub/eidhaYV/numekotamoponumif.pdfIn PDF document text
    • https://cdn.sqhk.co/beluvano/UfpFK7j/52498112226.pdfIn PDF document text
    • https://cdn.sqhk.co/xajamenujo/ifEgghf/nanezatilabol.pdfIn PDF document text
    • https://cdn.sqhk.co/kataregulu/bgcys2T/agile_retrospective_meeting_template.pdfIn PDF document text
    • https://cdn.sqhk.co/sujubowip/CGiiiZ0/50911162874.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vufeligix.rf.gd/boxabigomijonewebax.pdfIn PDF document text
    • https://s3.amazonaws.com/kiguteperilodu/polymorph_vs_true_polymorph.pdfIn PDF document text
    • https://s3.amazonaws.com/zopenave/capital_of_morocco_crossword_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/vavejijitatofu/how_long_will_the_powerbeats_pro_be_on_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/vosimeneputotuneduvenis.pdfIn PDF document text
    • http://tizepadeda.rf.gd/arrhythmia_causes.pdfIn PDF document text
    • http://lizuratudesaxop.epizy.com/symbiotic_nitrogen_fixing_bacteria.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_off0000d76d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD76D 5656 bytes
SHA-256: 9aac38a30ec95a8ce3983de80384e97169381b34b6c5d3a8de286aada94bab18
font_01_sfnt_off0000ea8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA8E 10296 bytes
SHA-256: f91df89d67cedd335a6243b0e3a0e685fbfced19c7508dcdaf4a3bf58965116b

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