Malicious PDF — malware analysis report

Static analysis result for SHA-256 0209b8dd9ecb1a8a…

MALICIOUS

PDF

68.7 KB Created: 2021-02-14 17:40:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 66af73907f1354cf7f08c532c13da196 SHA-1: 66695d80eb77b7e4371976133a4f1aba55d3571e SHA-256: 0209b8dd9ecb1a8a0d50b41a3b39f4b7ef2ec9f7b32a875d84d7f2b19dd08136
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://baarspo.ru/aws?utm_term=everspace+achievement+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382196/normal_5fd111e6e57fc.pdfIn PDF document text
    • https://digeforoxega.weebly.com/uploads/1/3/4/6/134668277/rezozegewidogir.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476446/normal_5ff0a47615a40.pdfIn PDF document text
    • https://menanolunum.weebly.com/uploads/1/3/4/7/134754058/tuxagovibap-tipip-jibonufibol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366369/normal_60110eabd50a8.pdfIn PDF document text
    • https://pevaluxuduta.weebly.com/uploads/1/3/4/5/134502983/8121798.pdfIn PDF document text
    • https://jejipabiximi.weebly.com/uploads/1/3/2/7/132741556/9872648.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423430/normal_600af1ea2b31c.pdfIn PDF document text
    • http://amaryllis.space/xigokibiforizka1bl.pdfIn PDF document text
    • http://dkblogin-de.best/all_animal_sound_video_download_mp3shtl7.pdfIn PDF document text
    • http://amsidgi.xyz/93383570935nxkw9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425759/normal_6016813d69458.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381108/normal_5fd730b947092.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388413/normal_600ed1dc5db8a.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/kakef/nukaxaziludulepilol.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/sujekinirorevoboze.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/cara_vsco_cam_fullpack_gratis_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/76248878291.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_off0000cfa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFA6 5472 bytes
SHA-256: 26385fa62b30590d888a57f15ac5c43abad62214ff68fb54b7e3c755a93b535a
font_01_sfnt_off0000e222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE222 10500 bytes
SHA-256: 8d231fbffe56e88def4e434457a2a7afb869afe1a1182b63f23e7270ed37e472