Malicious PDF — malware analysis report

Static analysis result for SHA-256 b57c6856b6048614…

MALICIOUS

PDF

72.2 KB Created: 2021-03-03 03:45:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 56b38b935237cbd9278b2b119749aba2 SHA-1: 9a8deec79c02e1230cb16b42f6fe4d0b7a1f33ab SHA-256: b57c6856b6048614e1a4ac1afb0d04803e5a66bead367488589c726acf743236
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://dugedepap.ru/award?keyword=how+to+learn+english+for+beginners+free PDF link annotation
    • https://pifavakibapel.weebly.com/uploads/1/3/0/8/130814246/0e846e.pdfIn PDF document text
    • http://vetebozo.mypressonline.com/peliculas_mitologia_griega_dioses_del_olimpo_en_espaol.pdfIn PDF document text
    • https://cdn.sqhk.co/tamupoto/jQfnq55/tiktok_video_and_music_downloader_without_watermark.pdfIn PDF document text
    • http://gedadekenoz.mywebcommunity.org/vegobiwenav.pdfIn PDF document text
    • https://fiwugepupuladav.weebly.com/uploads/1/3/4/7/134740110/9441193.pdfIn PDF document text
    • http://nakozek.mypressonline.com/popikagoxulira.pdfIn PDF document text
    • https://lefusovu.weebly.com/uploads/1/3/4/0/134040443/mosifelibipipaza.pdfIn PDF document text
    • http://peluxuba.sportsontheweb.net/sogozimulotijesizoxuxu.pdfIn PDF document text
    • https://cdn.sqhk.co/lebudawojafi/3kCASgi/xusimoxug.pdfIn PDF document text
    • http://zathkatow.xyz/60836572766va13m.pdfIn PDF document text
    • http://dodemul.mygamesonline.org/zobumodozoxegukud.pdfIn PDF document text
    • https://xananitape.weebly.com/uploads/1/3/4/0/134095977/ketazoxitilegitajed.pdfIn PDF document text
    • https://cdn.sqhk.co/wuzosiboweja/ChejjQx/wafetusizesitonaxu.pdfIn PDF document text
    • https://mopotepawo.weebly.com/uploads/1/3/0/7/130738720/8213487.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://koxolavomuzo.myartsonline.com/yaskawa_varispeed_p7_fault_codes.pdfIn PDF document text
    • http://viwuwijagabote.myartsonline.com/fulusobozuxofikapeg.pdfIn PDF document text
    • http://desejole.myartsonline.com/la_recherche_du_temps_perdu_2011_tv_film.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_off0000dd66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD66 5220 bytes
SHA-256: f2fe3bdbc2ff7d01860bd57bc6dfe945c13189937c0da8f1bf8c15cf104c40ac
font_01_sfnt_off0000ef35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF35 10852 bytes
SHA-256: 88e78b4e7c24dc7e76be71be374c71ebcd9a916795dbc04157e48576767ce3d1