Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0bec4e23b70cbde…

MALICIOUS

PDF

76.0 KB Created: 2021-05-19 02:24:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 97550d5220eeb93c4b13a4157e9b1090 SHA-1: b0422e2c8ba7e4edcd648098fb04f75c7623064b SHA-256: a0bec4e23b70cbdef61dea2d8c4c12b5f4ac9f690e360cc61532fbb27d89dcbc
96 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning model assigned a high probability of maliciousness. The document contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into visiting a phishing or malware distribution site. The document body, though heavily obfuscated, appears to be a lure related to a search query.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://soxebez.ru/strik?utm_term=how+much+bernat+blanket+yarn+do+i+need PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413866/normal_6022e98d558d7.pdfIn PDF document text
    • http://sobuvowoxemati.iblogger.org/61076172597.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451225/normal_5ff97f829e7b3.pdfIn PDF document text
    • http://pozugazibejiku.iblogger.org/70719609616.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/vukujidor/nelefejuvi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a4d8cac-5fea-41b1-832a-45b6564b245f/lilobidajazedevi.pdfIn PDF document text
    • https://s3.amazonaws.com/gedexim/how_to_resize_passport_photo_to_2x2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86ed28c9-7671-428d-8a0b-d1a6d32224c1/kaduwiwejusinadeveka.pdfIn PDF document text
    • https://s3.amazonaws.com/sogovekevi/greatest_common_factor_worksheet_grade_10.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/49011379787.pdfIn PDF document text
    • https://s3.amazonaws.com/xixonu/agile_project_management_books.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fda88c9-d803-473e-a60d-e07443a02362/fases_del_aprendizaje_basado_en_proyectos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9fe3c3f-1c0e-4b45-80f3-81b45a6fe1ec/bozonozezotubax.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/burger_king_coupons_nl.pdfIn PDF document text
    • http://dafadewu.epizy.com/quantitative_aptitude_shortcuts_tips_and_tricks.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/jugowikukavuzuxar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bf41ce2-dd34-4a93-ab18-3c33732b4b96/mythology_edith_hamilton_75th_anniversary_ebook_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/proctor_silex_coffee_pot_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/697b4032-6636-416f-832f-898532afef42/49730625757.pdfIn PDF document text
    • http://nesewazud.epizy.com/air_pollution_control_methods_and_equipments.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/cambio_climatico_causas.pdfIn PDF document text
    • http://sagaxuwesik.epizy.com/roluronis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ded74be-0db3-47a8-860f-265c79d5ae8b/24318539181.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f51ab964-ec50-49b7-8367-b6617ee154cd/tofapijanezogekugivunito.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_off0000e7b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B9 5360 bytes
SHA-256: 090b66bf91bbcd438a9bac8e4e17a23405e21bea15bb1bf41326ae526c14f34b
font_01_sfnt_off0000f9d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9D8 11380 bytes
SHA-256: 6a91dd2b9aff0ef4d60c465a4ae9d37a3f443e8f10ee2dec1cd652fe983cf191