Malicious PDF — malware analysis report

Static analysis result for SHA-256 2017d1137274885b…

MALICIOUS

PDF

62.6 KB Created: 2021-02-21 19:42:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 53b8cfd5195638146d1e54a53bed54e0 SHA-1: c0b9668cf282929b776c7efd4a8704cb9c83b6d5 SHA-256: 2017d1137274885b736e5ce3dc3e5f1f575c4f8891c51528c8bcb9a845da4ed7
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://bologen.ru/wix?keyword=autocad+chapter+17+review+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4473926/normal_60053d1730266.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461786/normal_5febdd41bd4ca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470231/normal_5fcdce2633f78.pdfIn PDF document text
    • http://lnstagram-copyright-confirms.com/39332615871alhuu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413002/normal_5fd6ed362b788.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403143/normal_60016e8ac4674.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403681/normal_5fd76fd3b4647.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498376/normal_5fcf452ef13c0.pdfIn PDF document text
    • http://dezlice.ru/fun_daycare_gameskermh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446275/normal_600f3c35c2ab3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409107/normal_6026f9db33d3c.pdfIn PDF document text
    • http://vitrinachel.ru/reglage_temperature_chauffe_eau_thermorbmh5m.pdfIn PDF document text
    • http://xopuwigevifuk.iblogger.org/air_force_1_white_black_nike.pdfIn PDF document text
    • http://soul-felt.com/romubewiferogamooggl0.pdfIn PDF document text
    • http://fojedera.22web.org/82686910451.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/jamuluvuvava/kufoferirakawofuzejo.pdfIn PDF document text
    • http://zerekigukazaja.epizy.com/crock_pot_express_multi_cooker_manual.pdfIn PDF document text
    • http://vubixijugisoloz.epizy.com/jujadikisemupiwizumafefe.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_off0000ba9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA9C 5400 bytes
SHA-256: 7ff269c7ef41cef40ba7f23ad404d5d4bcff1abb75ade59f64c524380bf57ff2
font_01_sfnt_off0000cd1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD1A 9476 bytes
SHA-256: dd09df1bcc5129ad609fec7ba253fb816cb26aa7d3c04ab901c9d5018346e179