Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6c0baea001dc480…

MALICIOUS

PDF

77.6 KB Created: 2021-02-15 09:20:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 663194fedf8231f75e562248261191f1 SHA-1: 45940ae86a206fdf99f346e246845d1462cf4c5d SHA-256: e6c0baea001dc480f2964f758a0baed6ac9a1da4a90dbb991c4cf8730da278e1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jacksth.ru/aws?utm_term=cabinet+maker+software+free PDF link annotation
    • https://degijidugaf.weebly.com/uploads/1/3/4/8/134886203/5805946.pdfIn PDF document text
    • http://zoom-omsk.ru/913463405819jfmw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407986/normal_602a19af2f142.pdfIn PDF document text
    • https://lobakazuperowe.weebly.com/uploads/1/3/4/3/134352895/tikavawekoxodumipege.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486060/normal_6001de6f79a4f.pdfIn PDF document text
    • http://helpforteam.com/ortega_taco_seasoning_mix_instructions0g37x.pdfIn PDF document text
    • https://bonopabugo.weebly.com/uploads/1/3/4/5/134581776/bf86e3.pdfIn PDF document text
    • https://diriremipujuna.weebly.com/uploads/1/3/4/2/134265666/xuwijewanutawepoli.pdfIn PDF document text
    • https://cdn.sqhk.co/wejagamewo/6giUGih/45943268685.pdfIn PDF document text
    • http://itclick.pro/street_fighter_4_ultra_moveszzbu3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463807/normal_5ff421fedc73b.pdfIn PDF document text
    • http://endi-itali.space/62806295859vwd43.pdfIn PDF document text
    • https://janirakuvofubej.weebly.com/uploads/1/3/4/7/134734148/9b461db410b77c6.pdfIn PDF document text
    • http://help-violation.com/zimigurikizevoredovusofei7pps.pdfIn PDF document text
    • https://zewabezasakaru.weebly.com/uploads/1/3/4/5/134593707/wuruweto.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000f308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF308 5080 bytes
SHA-256: ef3b650f3494fa7e80c98ebd4142bef3292b1bb53fcd48d3d27ad48c93b1260b
font_01_sfnt_off0001044a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1044A 11236 bytes
SHA-256: 2e2d4f417a523aa424a4bacd7901eb94f9cfc581fdb957d37453cb9af4ec9c0c