Malicious PDF — malware analysis report

Static analysis result for SHA-256 4664f29f91e157b2…

MALICIOUS

PDF

74.9 KB Created: 2021-03-04 11:20:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9e246cf75a27b26d47a0ab90260d4ec7 SHA-1: 71c91b1df814a3a184122de508c6ac804bccae70 SHA-256: 4664f29f91e157b221af23a2dc157e0b4c98ae2a048c174cdbb643931d6211d8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=mapleroyals+training+guide+warrior PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4462982/normal_603c343238a97.pdfIn PDF document text
    • http://septiki-rf.website/magoletimusao0x89.pdfIn PDF document text
    • http://biweekamnf.com/sewumaxelezizelivogalvlr1.pdfIn PDF document text
    • http://balegetiwep.mywebcommunity.org/damujojot.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451019/normal_5fcd9ffae2ea1.pdfIn PDF document text
    • http://sportplays.ru/excel_formulas_not_working_in_tablemm8i2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414166/normal_603e24b881f3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388416/normal_600f910f4de71.pdfIn PDF document text
    • http://4338bacchus.com/801429177252qvcb.pdfIn PDF document text
    • http://bitcoinov.site/honeywell_oscillating_tower_fan_instructionstx9ue.pdfIn PDF document text
    • http://telemprom.xyz/9063772384yhwjq.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/rurosaveruk/hyundai_android_auto_update_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/kolujazipunom.pdfIn PDF document text
    • http://vebagakid.onlinewebshop.net/rain_bird_5000_sprinkler_adjustment_tool.pdfIn PDF document text
    • http://ziwivazud.onlinewebshop.net/18944924309.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_off0000e893.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE893 5324 bytes
SHA-256: bd98557ea235152fae5d01c06e9be93d885007e5ad78c8c5da8d7dce0cea7c7f
font_01_sfnt_off0000fae2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAE2 10608 bytes
SHA-256: 32088dea5ec0c40583be5c24e28c88de6cdf9a600544d246d36ef2f6b491cd7e