Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a64ea52551e4d23…

MALICIOUS

PDF

70.2 KB Created: 2021-03-01 01:58:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8ae070f529f347322ea380002c7e3ac0 SHA-1: 310b482b0761093802f171364d862cacdf260bfa SHA-256: 5a64ea52551e4d2349a218d3abaaa13404d61480871e29aad73fb371a413408b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://bologen.ru/award?keyword=modern+family+script+season+1+pdf PDF link annotation
    • http://usesucre.pro/mutedegazudigopic002q.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392195/normal_60271640127e5.pdfIn PDF document text
    • https://wojatobarub.weebly.com/uploads/1/3/4/6/134612389/wotigato.pdfIn PDF document text
    • http://lenuvivureropi.scienceontheweb.net/xuxudulosa.pdfIn PDF document text
    • http://mosebuzixat.mywebcommunity.org/32886256463.pdfIn PDF document text
    • https://wutejaguruloz.weebly.com/uploads/1/3/1/8/131871665/3705759.pdfIn PDF document text
    • https://famosufed.weebly.com/uploads/1/3/4/9/134900490/4433884.pdfIn PDF document text
    • https://raputaluwim.weebly.com/uploads/1/3/1/6/131606275/verefefisifiw_rikadukududo.pdfIn PDF document text
    • https://cdn.sqhk.co/mofisozulud/jghghjB/birthday_butter_icing_cake_designs.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407299/normal_600841127e394.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419413/normal_5fc6d76fd4ba5.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/mijumomub/50182267900.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/31550194169.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/main_vichara_punjabi_song.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_off0000d605.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD605 5460 bytes
SHA-256: dfd7be9a48f07c3bcea6e4b3fcce910476bead323ac3461cb3431c1c5fea935a
font_01_sfnt_off0000e8a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A1 10352 bytes
SHA-256: 38d1ca3c3f9405d33323ffc661d3fcd087ebb1d5dbb6e5b85cd286be3f236b0d