Malicious PDF — malware analysis report

Static analysis result for SHA-256 153b32781ad812e2…

MALICIOUS

PDF

71.1 KB Created: 2021-02-21 09:26:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0cc063b959b6b89414e7f8e77f4eeb60 SHA-1: 75dadbd312198fb2f80465149a981e3888c51f6b SHA-256: 153b32781ad812e28d5ae293104aff5c5524bbd161271691967f3a47817bf8e4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://jinabotulopel.weebly.com/uploads/1/3/4/6/134602701/mumuxomubasuwi.pdf In PDF document text
    • https://silavetej.weebly.com/uploads/1/3/5/3/135314504/9945881.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471690/normal_5fd99e5781e38.pdfIn PDF document text
    • https://cdn.sqhk.co/tumowara/hhahaKU/simple_fall_card_ideas_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421352/normal_60005c50eb8c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402262/normal_60170d4e1afbe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454052/normal_602613d133024.pdfIn PDF document text
    • https://tubemugipowiw.weebly.com/uploads/1/3/4/3/134345788/dufavamo_vitaratisus_vojaragumaluka_pafurejuxuz.pdfIn PDF document text
    • https://cdn.sqhk.co/widafopaj/fcdijjg/30450879822.pdfIn PDF document text
    • https://wigitofeza.weebly.com/uploads/1/3/2/6/132682623/xokaw_jajezowuzetarot.pdfIn PDF document text
    • https://sijetuso.weebly.com/uploads/1/3/4/4/134499475/didav.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503050/normal_5fd1008de39ad.pdfIn PDF document text
    • https://rudadikisoma.weebly.com/uploads/1/3/1/6/131606677/12bd3d25.pdfIn PDF document text
    • https://fetatoba.weebly.com/uploads/1/3/4/6/134689412/linewa_mubowemijokonuz_zilugodofi_larisadelivov.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477181/normal_602a0ee5b2171.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487432/normal_601889df8bbfa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481825/normal_60075d6c4020c.pdfIn PDF document text
    • https://luzulobopado.weebly.com/uploads/1/3/2/6/132681737/budapurananej-wojupab.pdfIn PDF document text
    • https://cdn.sqhk.co/kitaparek/jsAzVha/ganofewifem.pdfIn PDF document text
    • https://golotelarag.weebly.com/uploads/1/3/1/3/131382536/guzokabejuwuxes.pdfIn PDF document text
    • https://cdn.sqhk.co/jiluputumusi/jdjghay/kawadejijefititesuf.pdfIn PDF document text
    • https://cdn.sqhk.co/tokafumotebi/fiiSeQq/smart_soccer_ball_video.pdfIn PDF document text
    • https://leonvi.ru/wb?keyword=int%20sinPDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dogufisojorosef.epizy.com/briova_specialty_pharmacy_botox_enrollment_form.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bd6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD6A 5296 bytes
SHA-256: d169ead867fade32b0d4f3878b75dd933c9fc08c2e41ce2483c41518384bc031
font_01_sfnt_off0000cf92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF92 11972 bytes
SHA-256: 9ada05bf1160c489d5cd4a592ff0561f11c06b23718343afee5f31a7107c1957
font_02_sfnt_off0000f75b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF75B 16096 bytes
SHA-256: 2dff1fc3e5bf1049a512ca2ab3d4448021a5e4676c0c9a63fbc3d390c83797d9