Malicious PDF — malware analysis report

Static analysis result for SHA-256 92604d8c95fec030…

MALICIOUS

PDF

74.4 KB Created: 2021-02-09 08:41:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 2c4f98795e3bdfc716a868614505753d SHA-1: a68816cd010dbe142eb363095bf1cf63c5a045b3 SHA-256: 92604d8c95fec030a0a6ef6ea7578465e2616a89c97d0fcb407d2053d9c8d4b1
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://seumenha.ru/wb?keyword=acunetix%20web%20vulnerability%20scanner%20app PDF link annotation
    • http://13millions.store/4410545313501ux3.pdfIn PDF document text
    • https://nefotinabe.weebly.com/uploads/1/3/5/3/135314884/wabafubadakipu_watuwalekosuxa_xarepi.pdfIn PDF document text
    • https://lufokojas.weebly.com/uploads/1/3/5/3/135398832/8a535.pdfIn PDF document text
    • https://cdn.sqhk.co/womawuxinuge/hcjcuK9/muromukazusaporunirejud.pdfIn PDF document text
    • http://bowoporoj.iblogger.org/61850111300.pdfIn PDF document text
    • https://walikuroxora.weebly.com/uploads/1/3/2/8/132815001/2628603.pdfIn PDF document text
    • https://topazezinin.weebly.com/uploads/1/3/0/9/130969714/mejogalejele.pdfIn PDF document text
    • http://kraftmann.su/infection_preventionist_nursewm4wa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455659/normal_5fc9f935ede79.pdfIn PDF document text
    • http://help-feedback-amzn6.xyz/mensa_practice_test_answerstxrqq.pdfIn PDF document text
    • http://kihepc.xyz/tercera_sesion_de_consejo_tecnico_escolar_2015_primariapbyh5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408993/normal_5fef6efd7b81c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kokokifutalikop.epizy.com/32686561639.pdfIn PDF document text
    • http://xiditad.rf.gd/67680015472.pdfIn PDF document text
    • http://bajitak.epizy.com/afunika_piki_piki_skirt_song.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_off0000e56a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE56A 5376 bytes
SHA-256: 07326f0d8440f6db23e83573e2cf588fecb60fdcfb9c2bd4f57c76728d152460
font_01_sfnt_off0000f7df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7DF 10744 bytes
SHA-256: cb052e8ca61d170c2a67af7d162a85165c815e18b2f6e72c905bc0d504496627