Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2f7fafedaea5f01…

MALICIOUS

PDF

99.7 KB Created: 2021-05-05 11:48:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9c7290eee4ed4bd099135579646013f1 SHA-1: 5b877a60401bffff48aba79fe2d310fb51f931d0 SHA-256: f2f7fafedaea5f019db31254d8ead6cd871b3b20fb35e187bcf92fe663b2db39
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://jottigo.ru/strik?utm_term=pathfinder+books+pdf+free+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4366668/normal_5ffc2e6aa953a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444369/normal_603a0d6197520.pdfIn PDF document text
    • https://cdn.sqhk.co/nakijalufiw/ctcjcCi/59512939103.pdfIn PDF document text
    • https://cdn.sqhk.co/kosenopelid/gcjgjeA/zupaketifujuxopiv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460981/normal_601bca3f8a734.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467027/normal_603716961ec12.pdfIn PDF document text
    • https://cdn.sqhk.co/kososojog/gZhhhhc/36607485933.pdfIn PDF document text
    • https://cdn.sqhk.co/reruzemafow/NLghmje/kenosha_shooting_suspect_armed.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://uploads.strikinglycdn.com/files/53ea1c19-a823-4d92-b7ba-52f489a56000/intermatic_timer_trippers_home_depot.pdfIn PDF document text
    • https://s3.amazonaws.com/wegugus/88344049955.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fa24b5c-49b3-485f-b528-d6a872afb603/how_to_put_humidifier_on_furnace.pdfIn PDF document text
    • https://s3.amazonaws.com/nisiwanolom/limukaraliwasesapupasow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cf28ba0-ed90-4628-9471-e72d1ee7fc6d/aprendizaje_basado_en_proyectos_ejemplos_biologa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07c7ac15-3536-4007-9a5a-36b53d09ba71/36459181915.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fa20e96-96d2-487d-a859-77f66e802b2a/can_i_renew_my_nc_license_plate_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2de05350-c594-4f43-9676-32584f6dfc8a/can_you_put_kitchenaid_mixer_attachments_in_the_dishwasher.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06539e10-f166-4d4c-aa85-d0dff486eee6/93782731887.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf18c215-bbd1-4108-94e0-3bbdde68925f/how_long_to_study_for_paralegal.pdfIn PDF document text
    • https://s3.amazonaws.com/xijuxosisomuna/the_nuts_and_bolts_of_college_writing.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_off00011d39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D39 5424 bytes
SHA-256: 3486f31d867f054714b0402e121fb7e56dd196b5e08c45907373c4c6a1afe454
font_01_sfnt_off00012fb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FB0 11348 bytes
SHA-256: 5510831d6369b50f58ee4a8b096a9c374a2d9882c7ca9caa6ce0f51d2ec21e00
font_02_sfnt_off000156b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x156B6 14384 bytes
SHA-256: c3e31af3b6bacc891ae19095db614a9c25ca88675910c432ffbdd243d05cc3d3