Malicious PDF — malware analysis report

Static analysis result for SHA-256 f48c152990648668…

MALICIOUS

PDF

77.4 KB Created: 2021-05-21 23:19:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0635acb12c23d20d542f4d2aaf5fa635 SHA-1: 7ac73831309a3063cc5270e91854decc2fa80ec5 SHA-256: f48c1529906486682c7462eecd0520658604caf7d2e6ba3706e0bd97dba4c995
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 0.9993

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://jumiwimov.ru/strik?utm_term=descargar+dragon+ball+xenoverse+2+por+mega+para+pc PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368954/normal_602455a8d31bd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446168/normal_5ffbe3d215fde.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452381/normal_6003957758310.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375531/normal_5fd235dc85dc0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470982/normal_5ffd58ff2ccfe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lonozote/36613242083.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3db5b876-8433-47bc-9826-c31e80ca9a74/how_to_fix_my_canon_printer_b200_error.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/94836933924.pdfIn PDF document text
    • https://s3.amazonaws.com/leributafa/audio_technica_at_lp120_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/gogoxowiniza/46306698437.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/what_is_visual_design_elements.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/domirovugile.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/adverse_drug_reaction_book.pdfIn PDF document text
    • https://s3.amazonaws.com/mufukep/california_single_member_llc_operating_agreement_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74c8c79e-7287-449c-b870-3fbe126b95b0/78069433402.pdfIn PDF document text
    • https://s3.amazonaws.com/daniwodug/high_platform_sneakers_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/vonutavekip/baal_veer_1111_video.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/springform_bake_pan_set.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/words_that_appeal_to_the_readers_five_senses.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ace38a4e-37a8-4ec3-a94a-75b63103422d/lugudavumub.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/the_raven_poetry_foundation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1d08998-403d-48db-a926-a5a466a5abe5/how_much_do_trampoline_parks_cost.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08be3ed1-c24d-4d52-a4fa-82513bf32c43/state_four_importance_of_curriculum_evaluation.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_off0000ec2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC2B 5792 bytes
SHA-256: 9f48cf83e989e94a19d8865b0469dbae50e15403466a2553b937c676de4331c1
font_01_sfnt_off0000ffdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFDD 12148 bytes
SHA-256: 15d0557de13d40d1ad1f639a99f1852943092fab3cd8d0b8ba0d8b98dbb14dd4