Malicious PDF — malware analysis report

Static analysis result for SHA-256 37c6099fd71a9061…

MALICIOUS

PDF

69.2 KB Created: 2021-03-07 18:33:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 27f9fb59fb67ee388c888a8a64c34d96 SHA-1: ba20930c7e5328ca94997d0f053bd6fac40e5d9c SHA-256: 37c6099fd71a9061ddd7db7d01d8fd275aaea0ae0c6231c3ae6cb61869a3878e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://dugedepap.ru/award?keyword=briggs+and+stratton+625e+series+190cc+carburetor PDF link annotation
    • http://perevod24-card2card.site/equinox_brooklyn_heights_schedule60ciz.pdfIn PDF document text
    • https://cdn.sqhk.co/defisepeniba/uhaXghC/townsmen_premium_apk_no_mod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458389/normal_600ca163dc44b.pdfIn PDF document text
    • https://fewugoxozo.weebly.com/uploads/1/3/4/4/134441687/xolugubavesid-bajebogijevise-vavox-dokifotitivefa.pdfIn PDF document text
    • https://betebawaxudu.weebly.com/uploads/1/3/5/3/135388356/965211.pdfIn PDF document text
    • https://cdn.sqhk.co/kososojog/DiOzggA/mod_installer_for_minecraft_pe.pdfIn PDF document text
    • http://sovetnik53.ru/sniper_elite_games_xbox_one559cx.pdfIn PDF document text
    • https://cdn.sqhk.co/jesotipo/0zgiAhi/my_sprint_bill_keeps_going_up.pdfIn PDF document text
    • https://zapunetiregete.weebly.com/uploads/1/3/5/9/135956705/mepunanumejivurotuni.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409246/normal_5fd3b2e4e5caf.pdfIn PDF document text
    • http://salleapp.xyz/2021_toyota_camry_xse_red_interior_pricec9l1a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408586/normal_5fcf8558e3626.pdfIn PDF document text
    • https://xuvaguwofivopi.weebly.com/uploads/1/3/4/4/134463587/d72ab8.pdfIn PDF document text
    • https://gugagefa.weebly.com/uploads/1/3/4/3/134343265/mibadovado.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423166/normal_60034d5350737.pdfIn PDF document text
    • https://cdn.sqhk.co/bapisolel/eifpJaq/giwasabenu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://63c5840e-267c-49ed-94d3-fc9f9d8b9c0b.filesusr.com/ugd/8c5bc8_54fa043f22a440acab0bf4271e0a694a.pdf?index=trueIn PDF document text
    • https://6d8b2927-5c4d-40df-b593-c6bd35e19528.filesusr.com/ugd/1adac8_73cc95160ea142d9aa4b6ef41e220d6f.pdf?index=trueIn PDF document text
    • https://17a6c5a8-0587-4adf-8126-5b439e15a62f.filesusr.com/ugd/54bec1_665d483f8049404a8db7efd64af92669.pdf?index=trueIn PDF document text
    • https://1ac5d900-0c69-4f12-8b1d-4e209472b8d2.filesusr.com/ugd/828753_28a44f298c7d498e84bc43981f2a6cca.pdf?index=trueIn PDF document text
    • https://438e95ed-c264-4db5-88d3-1a9ca8b91b86.filesusr.com/ugd/733c1f_30e2ca84ff5a4a118f0dbd9c85961cb5.pdf?index=trueIn PDF document text
    • https://8488b7ac-84bc-45ae-88ed-26841205fc59.filesusr.com/ugd/7cda3c_14b05222714c4a0298e8033d3bbc2d91.pdf?index=trueIn 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_off0000ce73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE73 6024 bytes
SHA-256: 930c27d7aff1fa276ac596ba4503e365f2206e67bec4accbd8b0425ccae1b1ee
font_01_sfnt_off0000e2fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2FA 10020 bytes
SHA-256: bc61428c8c2edd5fb5c155ec5defb3da9317910c801f88ea25c34840701c78d9

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