Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3ec5edfde7bfa43…

MALICIOUS

PDF

66.5 KB Created: 2021-02-26 11:43:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c6a4802e5ea9aa842c46f73fa2cc5444 SHA-1: 60d1103813bbac2939d73bffb34e7b717f2b37a1 SHA-256: a3ec5edfde7bfa432f4dc020a44535b7da028c332bea7663bfc1a653d0c95df1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jumiwimov.ru/award?keyword=motorola+g6+back+cover+replacement PDF link annotation
    • http://pedumerik.sportsontheweb.net/6127189687.pdfIn PDF document text
    • https://vimexizud.weebly.com/uploads/1/3/4/7/134755563/monuxelamozira-kibalafasavad-dojiruzatigu-fotokusujesaxe.pdfIn PDF document text
    • http://pesowulil.iblogger.org/mary_balogh_descargar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478415/normal_6016368d7cd9a.pdfIn PDF document text
    • http://jojidasusesot.sportsontheweb.net/35773596048.pdfIn PDF document text
    • http://jozipuvuwuzaj.mywebcommunity.org/sabowed.pdfIn PDF document text
    • https://cdn.sqhk.co/novozefox/ei3ifai/wukuworowor.pdfIn PDF document text
    • https://gavuwexis.weebly.com/uploads/1/3/4/7/134772394/9237148.pdfIn PDF document text
    • https://jelamiwigu.weebly.com/uploads/1/3/1/3/131382248/fewivo-gekasul.pdfIn PDF document text
    • https://lasomuvexovip.weebly.com/uploads/1/3/0/8/130813571/naxenawevoxavez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kuxiguzemafuj.rf.gd/92644978708.pdfIn PDF document text
    • http://fepapasofefo.epizy.com/filing_a_police_report_for_auto_accident.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_off0000c579.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC579 5496 bytes
SHA-256: 4565ab7234382d6401992f1e9643a113e6b034d0b9d68b6e5a5612e66f8002df
font_01_sfnt_off0000d829.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD829 10900 bytes
SHA-256: 76c6548e5a80eb9579a778b9b9f85f0be5666cb6d5666a1cae6960e7c97c3d7f