Malicious PDF — malware analysis report

Static analysis result for SHA-256 89e1b35e450c63cb…

MALICIOUS

PDF

82.1 KB Created: 2021-03-10 17:29:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 2efbee4b30777f425f2a841c344d792f SHA-1: 0f264046cc87d7016e2b2097321569594abdf3f4 SHA-256: 89e1b35e450c63cb95b176f42ca2e450927ba033b14c55cf8f9651c373d5573f
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that masquerades as a search result for song lyrics, which is a common lure for phishing attacks. The ML classifier and ClamAV detection strongly indicate malicious intent. The primary malicious URL identified is https://resalured.ru/wix?keyword=all+star+lyrics+translated, which is likely used to host or redirect to a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://resalured.ru/wix?keyword=all+star+lyrics+translated PDF link annotation
    • https://juxilejaguzu.weebly.com/uploads/1/3/4/4/134404551/8022609.pdfIn PDF document text
    • http://nepifenimet.iblogger.org/tafukukof.pdfIn PDF document text
    • https://moxuronanupew.weebly.com/uploads/1/3/4/5/134597487/rapejasijed-nokezibukika-pegenanimis.pdfIn PDF document text
    • https://xeligedijeka.weebly.com/uploads/1/3/1/0/131070237/potud_pikezosinulatej_tewidokiv_ditugotek.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
    • http://diwozonez.epizy.com/19060070109.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/aviation_boatswains_mate_equipment_job_description.pdfIn PDF document text
    • https://6c71f620-b6e5-46cc-9e58-526c5f0a7a41.filesusr.com/ugd/1c90dc_6e2e510798204874bf088bb529b15370.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/purufiz/metformina_1000_mg_para_emagrecer.pdfIn PDF document text
    • http://kezaforow.epizy.com/apprendre_l_anglais_cours.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7be8d80e-09aa-4a7e-844a-09a1ce46ae35/kajomakinimowodig.pdfIn PDF document text
    • http://kufalogomisag.epizy.com/intellectual_property_law_in_australia_book.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/40668290301.pdfIn PDF document text
    • http://mufasiloxinak.epizy.com/ubqari_magazine_march_2019_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0cfe1e0-ee9a-439f-8965-5f0ab7ed7981/schwinn_meridian_electric_trike.pdfIn PDF document text
    • https://s3.amazonaws.com/jozaponi/30646817509.pdfIn PDF document text
    • https://917ed8d3-8a9f-4c5c-a3ad-554e533308ad.filesusr.com/ugd/a4e402_951a53df5c604314ab33ad86cd43d438.pdf?index=trueIn PDF document text
    • http://dogefifuga.rf.gd/61398379563.pdfIn PDF document text
    • http://dodozos.epizy.com/fimuzuzutipajafo.pdfIn PDF document text
    • https://acd80754-3b70-42c6-a60f-3489f6261da4.filesusr.com/ugd/f1780b_80706b27b847495bb7c3846f26b93898.pdf?index=trueIn PDF document text
    • http://keguwaburafokul.epizy.com/rudram_namakam_sanskrit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcb2d0d9-20b2-4841-971a-76aedd098bb5/an_advantage_of_real_estate_investments_includes_all_except_what.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/1694936767.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1509e3e1-12ca-45df-8e5f-4495baa50c04/the_shock_doctrine.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_off0000ec99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC99 4704 bytes
SHA-256: 735219b022b4660d957abaff88b5a970d91b86fa30b9f326f1bae9488b737322
font_01_sfnt_off0000fc91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC91 15732 bytes
SHA-256: d8de6a3320852f6bff13e100620c1f18bfdfd9326eaee82f6fce6390a1c9874e
font_02_sfnt_off00012cdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CDF 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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