Malicious PDF — malware analysis report

Static analysis result for SHA-256 3105477057e22736…

MALICIOUS

PDF

75.5 KB Created: 2021-02-26 10:58:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b2dfa0e782a1a31c2f002c79fdc60773 SHA-1: 064e831f760d5ba3e0e5c7eb5419af0a11d5689d SHA-256: 3105477057e2273673c191dbde562064ee03da89402f7e59cdaf0f08b6223d94
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://kuzutuzo.ru/123?utm_term=where+does+the+revenant+story+take+place PDF link annotation
    • http://zumedemuruva.22web.org/virobupurupivuvuk.pdfIn PDF document text
    • https://zunejekuriraruk.weebly.com/uploads/1/3/2/7/132712234/493590.pdfIn PDF document text
    • http://nout-prokat.website/13671348004rdxek.pdfIn PDF document text
    • https://telogedibosujo.weebly.com/uploads/1/3/1/4/131438044/lagavegupafopep.pdfIn PDF document text
    • http://leree6.club/notepetovibetufsaalt.pdfIn PDF document text
    • http://prizinsta365.website/937919430936c9qm.pdfIn PDF document text
    • http://taforojujutusig.mygamesonline.org/skeeter_davis_the_end_of_the_world_lyrics_meaning.pdfIn PDF document text
    • http://uscreditcheck.info/how_to_reset_polk_magnifi_soundbarxyt7i.pdfIn PDF document text
    • https://mejatuwunuzawe.weebly.com/uploads/1/3/0/7/130775850/ee375f7a767a7.pdfIn PDF document text
    • https://pewarefat.weebly.com/uploads/1/3/4/3/134361746/gozonafifuk.pdfIn PDF document text
    • http://huseyincanx.com/26276234754s8xh7.pdfIn PDF document text
    • http://bovewitavivebu.getenjoyment.net/70141465956.pdfIn PDF document text
    • http://forovasax.medianewsonline.com/preposition_activities_for_grade_5.pdfIn PDF document text
    • https://poxemitiwafu.weebly.com/uploads/1/3/1/8/131871555/ranexiwus.pdfIn PDF document text
    • https://vamabeloketofip.weebly.com/uploads/1/3/4/3/134344852/6f637d82c6a.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_off0000ece5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECE5 5400 bytes
SHA-256: fd20eec0d02728a1f652f58cf8df312464d3bc05a0fa30e010c85ead3c3f61f9
font_01_sfnt_off0000ff52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF52 9960 bytes
SHA-256: 2be2feaff0c3fe18b6ab897d2458cd7eb664bd1839a567c4a075c719b8df24fb