Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8c01554fd512aeb…

MALICIOUS

PDF

68.5 KB Created: 2021-02-24 13:31:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: da416dcf16b596737b6593ada5818312 SHA-1: 1d8610051385be04a573fd85ef47b63ce50ec26d SHA-256: d8c01554fd512aeb5a850d7ace2ae6230425fcf60f9c62ebb8651f9e4df982f6
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://druttle.ru/wb?keyword=andrew%20wommack%20books%20pdf PDF link annotation
    • https://cdn.sqhk.co/jowowibow/hhbhgif/ding_employee_appreciation.pdfIn PDF document text
    • https://bonomomu.weebly.com/uploads/1/3/0/7/130775928/pibig.pdfIn PDF document text
    • https://cdn.sqhk.co/kafufojugure/jbO2Uij/perfect_window_perf_cutting_tool.pdfIn PDF document text
    • https://cdn.sqhk.co/noperizapewo/Phb3Xge/73384273535.pdfIn PDF document text
    • http://dewobazul.22web.org/minimalist_android_phone_s_home_screen.pdfIn PDF document text
    • https://cdn.sqhk.co/disidudi/jomzcge/21525625790.pdfIn PDF document text
    • http://ewwe.space/70103440752ci12x.pdfIn PDF document text
    • http://tarubexuwixam.iblogger.org/what_is_the_theme_of_the_book_enemy_pie.pdfIn PDF document text
    • https://povemiloten.weebly.com/uploads/1/3/4/6/134608376/4842251.pdfIn PDF document text
    • https://dugizixenopiloj.weebly.com/uploads/1/3/4/4/134457585/titakibu-gogurapo.pdfIn PDF document text
    • http://s7hmus.org/44227381679t0z3z.pdfIn PDF document text
    • https://sogutujugaj.weebly.com/uploads/1/3/4/4/134403955/ba625.pdfIn PDF document text
    • https://zuxadozi.weebly.com/uploads/1/3/4/6/134662888/popigoj-rakexo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tebuwibuweni.rf.gd/tujipoxulekedikujam.pdfIn PDF document text
    • http://kezitiw.epizy.com/76617194000.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_off0000cd1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD1C 5552 bytes
SHA-256: e24d49884b68ac75a2b6501e45e79f54f77924f4e96a79ef89a581d7d5f0d268
font_01_sfnt_off0000dff8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF8 10900 bytes
SHA-256: 14dc1de2d83fae74701ee22760e190382d7b6be25a0ee4147cc99835380bae1b