Malicious PDF — malware analysis report

Static analysis result for SHA-256 17ccc6172dd8b7cd…

MALICIOUS

PDF

72.0 KB Created: 2021-02-14 18:57:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2d5099ae100abb03a06dfcf2e1fa3a82 SHA-1: 29d181201ce83ba143ec0215e971eaab01bb46df SHA-256: 17ccc6172dd8b7cd04d973b4c2a8b7f74296a8f83046914053dd86b38212431f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://bologen.ru/wix?keyword=kill+the+thief+unblocked PDF link annotation
    • https://vadiduriku.weebly.com/uploads/1/3/4/4/134445950/f89bf18a.pdfIn PDF document text
    • https://fegojobakib.weebly.com/uploads/1/3/1/1/131163858/juvivosawonolupawam.pdfIn PDF document text
    • http://exclusmxpn.com/915996864651f3ig.pdfIn PDF document text
    • https://tojalalegeb.weebly.com/uploads/1/3/4/5/134584715/tivek_givapez.pdfIn PDF document text
    • https://juwufugoxeza.weebly.com/uploads/1/3/4/5/134528381/7282773.pdfIn PDF document text
    • https://bujubilefo.weebly.com/uploads/1/3/1/4/131406518/8337421.pdfIn PDF document text
    • https://fagovuwafarawa.weebly.com/uploads/1/3/4/0/134042706/lepada.pdfIn PDF document text
    • https://dugaposiga.weebly.com/uploads/1/3/4/8/134857723/8937630.pdfIn PDF document text
    • http://kungfumalibu.com/america_s_got_talent_magic_show_golden_buzzere64wq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sadedegigagivaw.rf.gd/free_halloween_party_flyer_templates.pdfIn PDF document text
    • http://gugamofizuxeg.epizy.com/hr_manager_interview_questions_and_answers.pdfIn PDF document text
    • http://radisabuvaba.epizy.com/nexufubaxevutokumuju.pdfIn PDF document text
    • http://mafofeguf.epizy.com/procalcitonin-_guided_antimicrobial_therapy_in_critical_care.pdfIn PDF document text
    • http://moferamobonar.epizy.com/fukimupuwesujukapimeni.pdfIn PDF document text
    • http://dukutogesedu.epizy.com/half_baking_sheet_dimensions.pdfIn PDF document text
    • http://wodebupikeziv.epizy.com/45254664957.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_off0000dfc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFC4 4796 bytes
SHA-256: 94802e36ba3ebdb1f5b540d11e5a27cc7396d131e0d46046661298665ac4c430
font_01_sfnt_off0000f017.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF017 10408 bytes
SHA-256: b127c42a1538960dac65bd584672495c53f8da4bd0f3529339a7783355fd0021