Malicious PDF — malware analysis report

Static analysis result for SHA-256 89352892c9e21ee3…

MALICIOUS

PDF

70.7 KB Created: 2021-02-23 14:46:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: bf0b0ee1373a87f368407cb8152fb563 SHA-1: 4b4ed23c574b87d1a9965b4a901c845773364f2f SHA-256: 89352892c9e21ee35b94812ffbdf63adb73aea3a63b7941174b3068da96def11
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/123?utm_term=que+es+la+destilacion+fraccionada+y+como+funciona PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4455180/normal_5ff6c30c395c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481272/normal_60287dac29887.pdfIn PDF document text
    • https://majawisalopor.weebly.com/uploads/1/3/5/3/135300577/9046355.pdfIn PDF document text
    • http://nozozofodedeza.iblogger.org/42062505852.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476432/normal_5fd79c5d5955a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452161/normal_5fd742e509a0e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482399/normal_5ffd4ac199202.pdfIn PDF document text
    • https://wukodotimage.weebly.com/uploads/1/3/4/4/134487216/19c2b53edf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370064/normal_5ff4a663f2e9c.pdfIn PDF document text
    • https://cdn.sqhk.co/zubavagi/2AgcjgE/mavax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444123/normal_6015a52d26ae2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425915/normal_601fd1e3f2a66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374968/normal_602c8a340dc69.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tozoxuzev.epizy.com/angadi_theru_padam.pdfIn PDF document text
    • http://beguresenoraw.epizy.com/is_there_anything_funny_on_netflix.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_off0000d3d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3D8 5328 bytes
SHA-256: a651c51fbe0908c6a302b2c6ed379b535dae4b9e5940c168dd9fd16d82709e3a
font_01_sfnt_off0000e5ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5EC 11668 bytes
SHA-256: 3ea13fbc452cb4fac6ebd3738d0f8a0888208fa49850aa97407b26fb9b393f6d