Malicious PDF — malware analysis report

Static analysis result for SHA-256 48c208174d359828…

MALICIOUS

PDF

71.8 KB Created: 2021-02-20 04:04:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5a8b553784268cf5c14d6c6b0f932856 SHA-1: 97e5e612627cee95e4ffdeee2d43e28cd33ca80f SHA-256: 48c208174d359828cac4040f62a87918e5a4bf7301a5a4ca5bb81b9924fdd8fc
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wix?keyword=hay+day+cheats+2020 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4386365/normal_600a4ef3be04f.pdfIn PDF document text
    • http://likelid.xyz/34590944967noc2m.pdfIn PDF document text
    • http://revershjtb.site/pdf_to_jpg_converter_high_reskqpdq.pdfIn PDF document text
    • http://fruitnaturs.space/49580270076l0s1w.pdfIn PDF document text
    • https://fobabunopana.weebly.com/uploads/1/3/0/9/130969757/23fdfe3aa2c384.pdfIn PDF document text
    • https://boleturem.weebly.com/uploads/1/3/4/3/134398498/sajorosopisim.pdfIn PDF document text
    • http://vashe-zdorovie.xyz/dewaneteuoo0l.pdfIn PDF document text
    • https://marizezibafive.weebly.com/uploads/1/3/4/8/134865590/xenemomupitipovepune.pdfIn PDF document text
    • https://wosobariwosamu.weebly.com/uploads/1/3/4/3/134372044/1239080.pdfIn PDF document text
    • http://dithetsen.xyz/jiramebuti5xp6u.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493553/normal_600fe12ec1acc.pdfIn PDF document text
    • http://ledimpress.biz/64988594416quy44.pdfIn PDF document text
    • https://suwanofanezelon.weebly.com/uploads/1/3/1/6/131636577/e57ebe4.pdfIn PDF document text
    • https://retinagarar.weebly.com/uploads/1/3/4/3/134319249/7109985.pdfIn PDF document text
    • https://sibabaku.weebly.com/uploads/1/3/0/7/130739132/dawul.pdfIn PDF document text
    • https://vinaribibivo.weebly.com/uploads/1/3/1/8/131871854/8427278.pdfIn PDF document text
    • http://pestore.pro/xigudexlcz0v.pdfIn PDF document text
    • https://dujomujur.weebly.com/uploads/1/3/4/8/134883281/duvosigozufamup.pdfIn PDF document text
    • https://jigupeditu.weebly.com/uploads/1/3/1/3/131380623/rotuzejagu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480584/normal_60284165078f9.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_off0000dd88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD88 5236 bytes
SHA-256: f9a45b74f2c77f65c5431cbcd1e1a4ee716e407c1732be5a9db389ad756e3d2f
font_01_sfnt_off0000ef5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF5E 10176 bytes
SHA-256: d2b50408bb33314b762f7ca766b26a86cc151651bd634b9bbe4d051210aded44

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