Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbc0678965d38642…

MALICIOUS

PDF

71.4 KB Created: 2021-03-04 11:34:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2ff175bfcf1e8ca723c4acf58a01b3fa SHA-1: ce9a542b3fdf7cb1faf141a1847538e98bd827a6 SHA-256: cbc0678965d3864282e14a502a685cf4842e138fb2e5aee27dd475d3c1be155a
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://dugedepap.ru/award?keyword=ingles+sin+barreras+precio+en+mexico PDF link annotation
    • http://vasakuso.sportsontheweb.net/wemopojitixazubep.pdfIn PDF document text
    • http://naturazuwedemoz.22web.org/game_hacker_appvn_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377381/normal_5fd0eadc084f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365567/normal_5fd2a7430d0e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424996/normal_6024c6d2745ba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412607/normal_600ba263367b8.pdfIn PDF document text
    • http://ruwemipuwev.mypressonline.com/minn_kota_55lb_thrust_i_pilot.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470038/normal_5fe8c3e02a94e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469828/normal_603e2e6f85183.pdfIn PDF document text
    • http://miribut.mywebcommunity.org/muxewoj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373755/normal_600b30b9b6984.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
    • https://s3.amazonaws.com/fofeguj/business_analytics_platform_gartner.pdfIn PDF document text
    • http://najaxobefirag.epizy.com/23250626828.pdfIn PDF document text
    • http://doriponesarom.myartsonline.com/renuvumujutexovav.pdfIn PDF document text
    • http://sidepojedava.myartsonline.com/monster_adjectives_ks1.pdfIn PDF document text
    • https://s3.amazonaws.com/gomaxod/android_studio_installation_failed.pdfIn PDF document text
    • http://kozirexufogepi.epizy.com/thule_roof_rack_installation_jeep_grand_cherokee.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/77705234875.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_off0000caed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAED 5104 bytes
SHA-256: e5b52a7023a69830d0e08eb9e9594c42c097b28fa9e46d0d25023c775e8b840b
font_01_sfnt_off0000dc1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC1D 11244 bytes
SHA-256: c9558e87967ac90b0edd45f9af7bbdf43cf7796d22b368975e4ca170df17114f
font_02_sfnt_off000100c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100C3 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333