Malicious PDF — malware analysis report

Static analysis result for SHA-256 e72cc09d6565253c…

MALICIOUS

PDF

77.5 KB Created: 2021-05-09 03:32:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58bb15ae80fdeb503cad21a35d85821b SHA-1: 7dd1bf1285252fce863c5544e8f29f7d4346d277 SHA-256: e72cc09d6565253cd24151cddca2ea37837dc3aeaf1c642310581c6bb5656d72
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains multiple embedded URLs, with the primary one being 'https://ponafet.ru/strik?utm_term=would+you+rather+game+flirty+questions+for+him', which likely serves as a lure to a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a deceptive pretext related to games or content.

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://ponafet.ru/strik?utm_term=would+you+rather+game+flirty+questions+for+him
    • https://cdn-cms.f-static.net/uploads/4410447/normal_60364ce52366b.pdf
    • http://firstflirts.site/562048541074k95s.pdf
    • http://medyahanem.com/lixezesaparalvu7bk.pdf
    • http://reawont.online/el_arte_de_la_guerra_frases_amord9vdo.pdf
    • https://cdn-cms.f-static.net/uploads/4450037/normal_6026785260f2f.pdf
    • http://remont-pc.website/good_books_like_the_selection_seriesk4zdc.pdf
    • http://grizhoff.ru/firelakx01jt.pdf
    • http://sbrf.link/58962734023jjnss.pdf
    • https://cdn-cms.f-static.net/uploads/4446642/normal_6066f771242a8.pdf
    • http://opt15.ru/aspekto_ng_pandiwa_worksheet_grade_5htb0k.pdf
    • http://misstourist.info/how_much_does_a_2003_coleman_pop_up_camper_weightdpk2j.pdf
    • http://shopwithsale.website/98554951756rfvwr.pdf
    • http://pinerapidsrr.com/manualidades_para_venderypthg.pdf
    • http://mebets.xyz/57013741743t32yy.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/829ebf73-6d21-468a-9452-cafad2dff903/how_to_make_a_minecraft_adventure_map_server.pdf
    • https://uploads.strikinglycdn.com/files/53f66058-ce02-45ac-991f-6f47452f6a6b/sharepoint_2013_designer_workflow_call_web_service.pdf
    • https://uploads.strikinglycdn.com/files/fa6a0b60-b01a-4043-b301-c0678ab5940a/dofipokediwikejobalo.pdf
    • https://uploads.strikinglycdn.com/files/dc743ab6-7616-4feb-9c94-7376e7c67b81/75713095424.pdf
    • https://uploads.strikinglycdn.com/files/1c4a7e8e-93d3-4a3f-b6b2-cf6f45f89824/is_a_graphic_novel_a_comic_book.pdf
    • https://uploads.strikinglycdn.com/files/bb0627c1-3ff5-4d23-b8bf-e1539ab7ef8d/fire_resistance_design_manual.pdf
    • https://uploads.strikinglycdn.com/files/feeb1666-f869-4525-a4ce-176096b9a37d/67933290772.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_off0000f0a3.bin
a362b5f21d99732364391668adf705d4a2fadf11999a131aa1326b9caf0ef21f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF0A3 5560 bytes
font_01_sfnt_off0001036f.bin
d4ba3f6da6ec6f75ad99b893f5c6b35f933b7c9c1eda5b8dbc7c491382a4547c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1036F 10856 bytes

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