Malicious PDF — malware analysis report

Static analysis result for SHA-256 30acae617fdf8272…

MALICIOUS

PDF

66.9 KB Created: 2021-02-18 07:41:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 905ca6a7701364a2840a46b668f28c53 SHA-1: 61705d70f89ecd52af4f3075ba04209bf338af05 SHA-256: 30acae617fdf82724ac0b314f91d2e73fe0eca3cec377fb28a5a89b6314ccfc2
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://seumenha.ru/wb?keyword=nancy%20mairs%20on%20being%20a%20cripple%20audio PDF link annotation
    • https://satufimitu.weebly.com/uploads/1/3/4/7/134715308/mabazozilefenikiga.pdfIn PDF document text
    • https://cdn.sqhk.co/nezusoxe/6gjucjg/totovosokebil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418399/normal_602a0bf785571.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481821/normal_6010c4f981d62.pdfIn PDF document text
    • https://goluluvofa.weebly.com/uploads/1/3/2/7/132712214/banelewomotoxasim.pdfIn PDF document text
    • https://sanijala.weebly.com/uploads/1/3/4/8/134889677/6833536.pdfIn PDF document text
    • https://ladukupubavar.weebly.com/uploads/1/3/0/7/130776836/8690317.pdfIn PDF document text
    • https://togimapobeno.weebly.com/uploads/1/3/4/6/134649298/wurolikanoniro-munisejepikizik-ragekemeki-wokekur.pdfIn PDF document text
    • https://gufogejerujog.weebly.com/uploads/1/3/1/4/131406717/902ab1cd.pdfIn PDF document text
    • https://kadonomu.weebly.com/uploads/1/3/1/4/131454950/cc06f6539.pdfIn PDF document text
    • https://cdn.sqhk.co/wuwovodegi/e7jiggA/10311803136.pdfIn PDF document text
    • https://jarowezib.weebly.com/uploads/1/3/0/8/130813985/zuvoxodinipo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385427/normal_6010789c0f850.pdfIn PDF document text
    • https://jixisejilikabow.weebly.com/uploads/1/3/4/2/134265892/vilakuruvina.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393625/normal_602791d8c21c5.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_off0000c94f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC94F 5604 bytes
SHA-256: 87a6a81fc54fc0a6506c1bbe53b8a21ff97807da6090062386021553a97bf67a
font_01_sfnt_off0000dc4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC4E 10084 bytes
SHA-256: 80d1c35d5ab9987586d7ea636839027cbe9acb5514b455b0b39025c4f9965e0d