Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7397d509377959e…

MALICIOUS

PDF

71.6 KB Created: 2021-02-26 07:37:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5fa8a05fea5602448d4bd53191f70afd SHA-1: 26627e6d95273d22285ee01acf9e1eba41140788 SHA-256: e7397d509377959e80c2d1ca01aa329aff9018ac3bb53f885ff94d9777f9788f
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://baarspo.ru/award?keyword=carrier+error+code+31+pressure+switch PDF link annotation
    • https://logesili.weebly.com/uploads/1/3/5/3/135389335/zatiriro.pdfIn PDF document text
    • https://petizigosi.weebly.com/uploads/1/3/4/9/134903326/9610904.pdfIn PDF document text
    • https://puxibaso.weebly.com/uploads/1/3/0/9/130968956/naxul-nokigegapepir-buporoza-xapanaxipajin.pdfIn PDF document text
    • https://cdn.sqhk.co/wifopuzuxiba/jVggDzC/tovoninexefinikisika.pdfIn PDF document text
    • https://cdn.sqhk.co/lojadisexudo/oIjhDkG/pexobubome.pdfIn PDF document text
    • https://tubufuximenijo.weebly.com/uploads/1/3/5/3/135304690/wefajidepo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wovovaj.rf.gd/online_anti_ragging_form_ugc.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/33255716010.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/battle_net_slow_speed.pdfIn PDF document text
    • http://ximawefab.epizy.com/led_car_bulbs_replacement_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/mediterranean_diet_for_dummies_cheat_sheet.pdfIn PDF document text
    • http://jumivozapiv.rf.gd/cadence_of_hyrule_yuzu.pdfIn PDF document text
    • http://lilepav.rf.gd/antergos_installer_error_can_t_needed_packages.pdfIn PDF document text
    • http://sobogasitizi.epizy.com/a_format_of_informal_letter.pdfIn PDF document text
    • http://robinovedibepo.epizy.com/19917590273.pdfIn PDF document text
    • http://supetarezof.epizy.com/81179284117.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_off0000db88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB88 5340 bytes
SHA-256: f34a6d77e71030a7c4b712cd805d3f78279889859e67ab6513d6751e022e7715
font_01_sfnt_off0000edc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC2 10420 bytes
SHA-256: ac4a9caa732bc9161b4bd9461775a843b1aac87b1a4acd52c1a28ba55955c76a