Malicious PDF — malware analysis report

Static analysis result for SHA-256 42e55667e65ee282…

MALICIOUS

PDF

66.4 KB Created: 2021-02-19 05:57:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d530236d65a231129887a3c53a024fd6 SHA-1: 3732822adf4f6646d0bd5e6ecc5291b99b796cc6 SHA-256: 42e55667e65ee28218352b3f5a0956e8654e89c89a98a3b827b8e20dc3974ab2
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://jacksth.ru/aws?utm_term=circo+chola+chabuca+2019+funciones PDF link annotation
    • https://cdn.sqhk.co/pipujevi/djhbUx7/calendar_september_2020_with_holidays.pdfIn PDF document text
    • http://dasonudulikuvon.22web.org/tosawazitefegalikorelag.pdfIn PDF document text
    • http://tesocoin.online/5707762077090cnm.pdfIn PDF document text
    • https://zawiwiguxasawum.weebly.com/uploads/1/3/0/7/130739629/29d3bccb.pdfIn PDF document text
    • https://cdn.sqhk.co/sunidoxil/Wih5hiC/nail_salon_near_me_prices_gel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494432/normal_6026856b6d892.pdfIn PDF document text
    • https://baziwiruxufuwav.weebly.com/uploads/1/3/1/4/131482892/komasolusezi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460975/normal_600dba849b4f4.pdfIn PDF document text
    • https://cdn.sqhk.co/vurifozi/djhDSih/switched_at_birth_movie_2016.pdfIn PDF document text
    • https://lemusovigezamo.weebly.com/uploads/1/3/1/3/131381045/derokuzado.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380887/normal_5fe7926cbe9de.pdfIn PDF document text
    • https://cdn.sqhk.co/wuxegejedak/fQjcgdx/bike_vs_train_race.pdfIn PDF document text
    • http://sodahq.club/panoboruvoxiragaoor8z.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jafesok.epizy.com/47606874728.pdfIn PDF document text
    • http://gaxegumulot.rf.gd/52049788320.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_off0000c536.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC536 5496 bytes
SHA-256: 5d03a4ba4b2e914fb5c7b52432d55d75276de877571d4e36d19157b352ecef9f
font_01_sfnt_off0000d7db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7DB 11076 bytes
SHA-256: a97ddfa6db2396977ca1dc544a8a67904763e953af6c699832904e7507a6e97e