Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ac8c5567cae5d75…

MALICIOUS

PDF

68.7 KB Created: 2021-02-24 02:47:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8e116445ad93ce84412336955475ceb9 SHA-1: 11d197ba269926914196d6d8e4ac8a01947ebc81 SHA-256: 8ac8c5567cae5d75c9994159660607c87829f27254247ac500a644255a47de62
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://maypoin.ru/strik?utm_term=canon+camera+powershot+sx150+is+price PDF link annotation
    • http://mylic.ru/difezagirupewukezuzarokw10qs.pdfIn PDF document text
    • https://lifigosup.weebly.com/uploads/1/3/4/8/134884960/e79d1e74c807e7.pdfIn PDF document text
    • https://cdn.sqhk.co/woxiwovar/ie6iejg/jomiwetilimu.pdfIn PDF document text
    • https://cdn.sqhk.co/jedelamodafa/ifYCOhf/best_free_offline_games_for_pc_windows_10.pdfIn PDF document text
    • http://cmbclientes.com/55753250328bbcj3.pdfIn PDF document text
    • https://cdn.sqhk.co/wamamuli/jfha6wg/napuxinazonalibosa.pdfIn PDF document text
    • https://foluxodemebomo.weebly.com/uploads/1/3/0/7/130739593/3772591.pdfIn PDF document text
    • http://esparks.ru/how_to_draw_a_christmas_treee6r8d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423453/normal_5fe4b32fcd7cd.pdfIn PDF document text
    • https://cdn.sqhk.co/pivokazi/DjegdrH/60513094818.pdfIn PDF document text
    • https://biweworu.weebly.com/uploads/1/3/4/5/134525234/dezoturukex.pdfIn PDF document text
    • https://cdn.sqhk.co/moxibusas/zjhbjgS/kedinuju.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/kewakuko/bonelumituviw.pdfIn PDF document text
    • https://s3.amazonaws.com/makixibawumebol/delicious_emily_s_hopes_and_fears.pdfIn PDF document text
    • https://s3.amazonaws.com/tesasubawalozan/kalender_2019_free.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_off0000d048.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD048 5524 bytes
SHA-256: f588a270c77901d49bd0263155336ba3dabc113970bc12e55455fdf52484132a
font_01_sfnt_off0000e2fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2FE 10168 bytes
SHA-256: 4c367077505aca0d698609b933397d9843ada9e03e857ad3f702d2d85c6518da