Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a6401eb99b4c5d0…

MALICIOUS

PDF

70.5 KB Created: 2021-02-12 23:49:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5170957888ec992c577d336dc3b0dfce SHA-1: f66afd094e3adc3043b32c2299077a9ed79cbc2f SHA-256: 5a6401eb99b4c5d00c4c629f77e321ea310c703757fa1098493942333f4d9069
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://leonvi.ru/wix?keyword=3dse+apk+android PDF link annotation
    • http://liketime.fun/apa_format_citation_article_from_websitewugn2.pdfIn PDF document text
    • http://itactical.xyz/bupibiwobijewazuzow1w95z.pdfIn PDF document text
    • https://radumudoxelis.weebly.com/uploads/1/3/4/2/134235428/vopuz_rutigego_kelemetisudiwo_midutad.pdfIn PDF document text
    • http://civiliscmq.online/mepilakojofajesw26rh.pdfIn PDF document text
    • http://ecoservice-vlad.ru/jafulopo15cvw.pdfIn PDF document text
    • http://1cats.space/medinidurejurowetatiny5viu.pdfIn PDF document text
    • http://baby-slings.ru/coping_strategies_for_anger_worksheet8wxja.pdfIn PDF document text
    • http://gokutep.22web.org/cell_biology_textbook.pdfIn PDF document text
    • http://sq11mini.com/corporate_accounting_notes_in_hindibwpx1.pdfIn PDF document text
    • http://big-ita.space/ribekepugoru3rzp.pdfIn PDF document text
    • https://febadezupuwile.weebly.com/uploads/1/3/1/0/131071278/tisunedubomibad_tavaluvujez.pdfIn PDF document text
    • https://gegoviboz.weebly.com/uploads/1/3/4/8/134876631/ae548d26d32a.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/dejolavubukugeb/fafisemenosisoba.pdfIn PDF document text
    • http://kefekebew.rf.gd/ella_minnow_pea_study_guide.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bd42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD42 5056 bytes
SHA-256: 1bf40b268fc110d12ff78c820f2f166ed4a2ef7ca9c4d4b92988a7014f5e7aa3
font_01_sfnt_off0000ce7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE7B 12868 bytes
SHA-256: c5453433c2f2e13d66f23e105344eeaa401645b6e24f5acfd674d94493082f84
font_02_sfnt_off0000f554.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF554 16468 bytes
SHA-256: aa27204ca3f0358b489857ef1c285f78ab075e17c32b11073b4f18234a991a34