Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a69323c8440a56c…

MALICIOUS

PDF

69.5 KB Created: 2021-02-23 11:41:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c265bbdd54c6e8b673629def3000f576 SHA-1: 276ab1bd41a3fdc904fd926dea88ec3b633eac86 SHA-256: 8a69323c8440a56c6ee6bf318be4f4dcb0864a1aba400536996c31dbbb7f7c0c
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://druttle.ru/wix?keyword=vivavideo+apk+no+watermark PDF link annotation
    • https://cdn.sqhk.co/bidogefapo/halnTja/ximema.pdfIn PDF document text
    • https://cdn.sqhk.co/weruvewo/ffsljhI/brimstone_atv_cabins.pdfIn PDF document text
    • https://kutemipemowu.weebly.com/uploads/1/3/4/8/134860595/jisutowudinixij.pdfIn PDF document text
    • https://mitenipup.weebly.com/uploads/1/3/4/3/134363071/5359436.pdfIn PDF document text
    • https://mokoloxove.weebly.com/uploads/1/3/5/2/135299893/4442464.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366321/normal_602f279bc88df.pdfIn PDF document text
    • http://tubujek.iblogger.org/motifajepakesafekodafi.pdfIn PDF document text
    • https://cdn.sqhk.co/bajipugotox/ifjfNhi/vebaxezegax.pdfIn PDF document text
    • https://cdn.sqhk.co/joxomawezu/ujcjhgF/tozuzowosaladesolokitido.pdfIn PDF document text
    • https://cdn.sqhk.co/zatugudaxaji/ShlXq3k/45893513136.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/17149822001.pdfIn PDF document text
    • https://s3.amazonaws.com/zibenoroduzuw/84863998348.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/xixiror.pdfIn PDF document text
    • https://s3.amazonaws.com/vinivuxo/46115894312.pdfIn PDF document text
    • http://zepibugab.rf.gd/zuxiwufixumef.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/shortlisted_report_definition.pdfIn PDF document text
    • http://nitovotiroxe.epizy.com/what_is_the_point_of_a_literature_review_in_a_research_paper.pdfIn PDF document text
    • http://bexinoj.epizy.com/48356753132.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_off0000ced1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCED1 5076 bytes
SHA-256: c2c4f1131c2a662cd15763d4597d366690986d939572fd6b32d59c34017bf173
font_01_sfnt_off0000e01c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE01C 15244 bytes
SHA-256: c5f497f4b7aa68fe25b4b080a7728018e9cf21758a4ca3bd35518ed5f7fff45f