Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3ea0b6f2e95fedd…

MALICIOUS

PDF

51.6 KB Created: 2020-10-07 19:55:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 60a4f92fab290af5ecc9f28149ceef1b SHA-1: fdd3a64ca9337c61df391214b0952919dbe1910c SHA-256: e3ea0b6f2e95fedd005e57e193b5bc277ded38682afe54c164d6205dc5bece59
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://cctraff.ru/strik?keyword=the+holy+rosary+in+latin+pdf In PDF document text
    • http://bapek.ajconsultingcompany.com/uploads/1/3/0/7/130776230/wuxuzilabo_xetegezefobaz_wosovot.pdfIn PDF document text
    • http://sasipo.zestnaturalmedicine.com/uploads/1/3/0/8/130874001/5571983.pdfIn PDF document text
    • http://tuxad.kanimblainternational.com/uploads/1/3/1/4/131438641/tiburesira.pdfIn PDF document text
    • http://files.lukeshobbies.com/uploads/1/3/2/7/132741352/ravorogegeru-kezasalaw-rapapul.pdfIn PDF document text
    • https://site-1040981.mozfiles.com/files/1040981/5784020219.pdfIn PDF document text
    • https://site-1036852.mozfiles.com/files/1036852/62424309151.pdfIn PDF document text
    • https://site-1036945.mozfiles.com/files/1036945/33540177240.pdfIn PDF document text
    • https://site-1036946.mozfiles.com/files/1036946/89024001244.pdfIn PDF document text
    • https://site-1038913.mozfiles.com/files/1038913/24264613601.pdfIn PDF document text
    • https://site-1036930.mozfiles.com/files/1036930/88759152516.pdfIn PDF document text
    • https://site-1039261.mozfiles.com/files/1039261/62121866510.pdfIn PDF document text
    • https://site-1048479.mozfiles.com/files/1048479/6109912486.pdfIn PDF document text
    • https://site-1036786.mozfiles.com/files/1036786/78965978167.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_off00008a23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A23 5180 bytes
SHA-256: 3431730c8da5a4a19d2a8bf547bc513c661798c8e47ceb9c57fa6f930e9ad031
font_01_sfnt_off00009bc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BC5 11240 bytes
SHA-256: 599f4084519f90a4d0b95c0fff94f27ad46c96e446888bbbf14591c3edde3921