Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdac4b400fd8d1f8…

MALICIOUS

PDF

66.7 KB Created: 2021-02-13 15:53:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: c5ec3ec949569ad0fca9f030d2a0bffd SHA-1: 255e0c8a3363b3362d3ec4930ac2ddd1ace353e3 SHA-256: fdac4b400fd8d1f8a4be9ccd8f52f1dcfab78af5f848f2c2871a4ace475059d2
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/wix?keyword=manga+hot+apk+latest+version PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4370528/normal_5fc612ee23fe2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366628/normal_5fdc13439fa38.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411683/normal_5ffe973002af9.pdfIn PDF document text
    • http://studytogether.fun/herons_circle_reno_nva9xtd.pdfIn PDF document text
    • https://fotiterik.weebly.com/uploads/1/3/5/3/135328456/7229900.pdfIn PDF document text
    • https://sefubokadizafa.weebly.com/uploads/1/3/4/8/134880044/bukonew_litizuxomip.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460449/normal_5fca9433ef997.pdfIn PDF document text
    • http://english-10.site/48006816744j1ocl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464720/normal_5ff07b6e60d7d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444370/normal_5fcb39ab597cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412592/normal_5fd624b469da5.pdfIn PDF document text
    • http://rastet-malysh.ru/niluvewiwojowogobojaztc4qs.pdfIn PDF document text
    • https://sixebujexe.weebly.com/uploads/1/3/0/7/130740217/jogivogex.pdfIn PDF document text
    • https://risimapi.weebly.com/uploads/1/3/4/3/134321435/bekepejesor.pdfIn PDF document text
    • http://7gusevshop.website/mr._peabody_sherman_2jy2u6.pdfIn PDF document text
    • http://namelesssouth.xyz/81761388686tm5vm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369328/normal_602578806542b.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/juvosi/momolurevuvoju.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/modle_de_cahier_des_charges_informatique_gratuit.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/jacoco_report_zero_coverage.pdfIn PDF document text
    • https://s3.amazonaws.com/lakadutof/calendar_2018_malaysia.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_off0000c7c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7C4 5208 bytes
SHA-256: 5eded160347e9e9c209d4a85c11b774187102c08c5049825f7525d2871c0fbfe
font_01_sfnt_off0000d98d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD98D 10660 bytes
SHA-256: 235619a321503e5c0a754a2cfe2047dc3a23988d1777a75e01eae9c19b5822a4

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