Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cb18acb80e23480…

MALICIOUS

PDF

70.3 KB Created: 2021-02-20 17:53:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 06f3e46cc43b86f9f1979ebaee1e7cf1 SHA-1: 79daad57b09047d3f118b426323dc13d464128ce SHA-256: 7cb18acb80e234803b10109d2e35ead3d99baa37aff46045951a5dbbcaf05291
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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://jacksth.ru/wix?keyword=kia+kima+leaders+guide PDF link annotation
    • http://sberpodarok2020.online/96975747885ee3bs.pdfIn PDF document text
    • http://zelafagilu.iblogger.org/define_platform_business_dictionary.pdfIn PDF document text
    • http://worilura.22web.org/santa_claus_christmas_letter_template.pdfIn PDF document text
    • https://cdn.sqhk.co/vumusokutil/gfMXmH1/63711529436.pdfIn PDF document text
    • https://cdn.sqhk.co/fudamozomeb/mhigjhj/twisted_ankle_care.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470231/normal_60158a9622b26.pdfIn PDF document text
    • http://easycreditscore.info/personal_statement_for_cv_templateyuts4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402486/normal_5ff9a5190afbb.pdfIn PDF document text
    • http://kokoponabile.iblogger.org/putepibize.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377924/normal_602ae19d6818e.pdfIn PDF document text
    • https://cdn.sqhk.co/lukizigerex/7je1rgj/word_crush_level_845.pdfIn PDF document text
    • https://cdn.sqhk.co/rorajakura/dihshe3/pakibarib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412891/normal_60146db06223c.pdfIn PDF document text
    • http://seomagnat1.online/gain_dryer_sheets_for_micel468c.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/budovewesekaz/whirlpool_conquest_refrigerator_freezer_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/kawaburavixesoti.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/20569123662.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/cbse_guide_class_12_english.pdfIn PDF document text
    • http://roworozirad.epizy.com/gogiregubidatekunepi.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_off0000d793.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD793 5180 bytes
SHA-256: 4b526c5739a36667061dde4d63f5c6cf9a5108529497979f2b8cfac48f8b2455
font_01_sfnt_off0000e919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE919 10236 bytes
SHA-256: dfd17046f02def9763047182f2e347c78597556b9def12b730a8cad0ffa6fdd2

Open this report in the interactive analyzer, or submit your own file for analysis.