Malicious PDF — malware analysis report

Static analysis result for SHA-256 7753f060a8c7c87c…

MALICIOUS

PDF

87.9 KB Created: 2021-01-27 07:01:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b1acb374f0db909780009c922c02e511 SHA-1: 638cb99986b2793f081a994bfe9767d313fdb516 SHA-256: 7753f060a8c7c87c3a8b8c7a001f8aac3fcbe0c3c7ecd81f70040fa314ef5bb1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/aws?utm_term=brother+disney+sewing+machine+se270d+manual PDF link annotation
    • http://fimewot.xyz/the_master_sculptortczom.pdfIn PDF document text
    • https://kafowuvipuv.weebly.com/uploads/1/3/4/3/134337110/tinuveda-kovodibosiled-kisegabazuzu-nunobadebovofix.pdfIn PDF document text
    • http://dinetaki.22web.org/dvd_fernandinho_galileu.pdfIn PDF document text
    • https://velalozelo.weebly.com/uploads/1/3/4/4/134498802/9376759.pdfIn PDF document text
    • http://xaduwojitodefo.66ghz.com/aplikasi_robbery_bob_3_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/daluzowinasu/UkPujvZ/tulawakuzovexemokokesed.pdfIn PDF document text
    • http://jazabezul.iblogger.org/android_1_mod_apk_dead_target.pdfIn PDF document text
    • https://cdn.sqhk.co/taxeseta/hbxQi35/all_funny_comedy_ringtone.pdfIn PDF document text
    • https://nijusalelazi.weebly.com/uploads/1/3/4/8/134875584/9547db10cb219.pdfIn PDF document text
    • http://waneboto.66ghz.com/cambridge_dictionary_android_apk.pdfIn PDF document text
    • https://dawekemukodo.weebly.com/uploads/1/3/4/4/134491409/fabatigubedalasibi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://didewuwu.epizy.com/92491425240.pdfIn PDF document text
    • http://wujawejibizub.epizy.com/bully_kutta_image.pdfIn PDF document text
    • http://jipinasin.epizy.com/temperature_calibration_certificate.pdfIn PDF document text
    • http://wezexezawudev.rf.gd/bcmon_app_apk.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_off000118d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118D3 5952 bytes
SHA-256: 2ad80d8539e6ef51dfd28f895568093d9f4fd0f069ade23783811001ca13c505
font_01_sfnt_off00012d0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D0E 11032 bytes
SHA-256: 4ce133fa9eabbd80f5e82fb58ba720b9310e9504306d57ddef9df53f8439a1d6