Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ee61d1cea12a958…

MALICIOUS

PDF

81.0 KB Created: 2021-05-19 20:10:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 71662b10ad2869f3ea1ce604b148386e SHA-1: b7017c8d32e8bfdc9deff6a9dc7b218c93f3f8c0 SHA-256: 2ee61d1cea12a958e8b9480eaae68c0c91b816daf5d1a9d6f0578bda335c81fb
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, masquerading as a search result for ringtones. This URL is likely intended to lead the user to a phishing or malware distribution site. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with a phishing attack.

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/strik?utm_term=top+100+ringtones+2018 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4367650/normal_5fed36fc71387.pdfIn PDF document text
    • https://folemazilepi.weebly.com/uploads/1/3/1/1/131164248/joziriwap.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369905/normal_60241f804c6d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374956/normal_6047d53f14605.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451348/normal_5fdfbfd39cfe1.pdfIn PDF document text
    • https://sifurimunudop.weebly.com/uploads/1/3/4/3/134328932/2068851.pdfIn PDF document text
    • https://jazediwugitali.weebly.com/uploads/1/3/4/7/134730671/4120453.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/03decd31-7df9-4b02-9671-3f9b7ee36bb3/beginners_guide_to_digital_painting_in_photoshop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8ebc380-431a-46ac-9a8d-d008c96f8a65/bayliner_service_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/31218007886.pdfIn PDF document text
    • https://s3.amazonaws.com/kifutizijebuj/canciones_de_cumpleaos_para_nios.pdfIn PDF document text
    • https://s3.amazonaws.com/zozuxukoxo/cant_control_bluetooth_volume_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/how_do_i_set_the_time_and_date_on_my_g_shock.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4331a310-d889-4830-9679-aaaab79e65e0/lefusevu.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/how_to_find_the_equation_of_a_line_with_2_points_and_no_slope.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d935e8bc-71b6-4ce4-9aa9-f2c875233d52/61507868151.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81e5be49-55e7-4cae-b7b3-bb4e554369f9/canon_eos_rebel_xt_specs.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/80161083333.pdfIn PDF document text
    • https://s3.amazonaws.com/buwosevax/trane_tracer_sc_plus_manual.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3E4 5004 bytes
SHA-256: b069a65daf42528e84b18b078fd3384b9462f5cb5539627bb3a81e6f209b23bc
font_01_sfnt_off000104f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104F3 10548 bytes
SHA-256: 17dd2581c4ec21df0d25ddbbb02055486f8e434710ac436fb09da31f1425a9dd
font_02_sfnt_off000128ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128EC 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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