Malicious PDF — malware analysis report

Static analysis result for SHA-256 770fe06f9c9aabfe…

MALICIOUS

PDF

73.0 KB Created: 2021-02-25 05:20:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: bc8f1f46df13e172806707c10f7f24b4 SHA-1: 4fbef4586f2c8abc8a4e5ce60671fb28918e9ca0 SHA-256: 770fe06f9c9aabfec7406b9b4f3358c9746ec838010bc94800cf4c4ea0e75110
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/award?keyword=how+to+clean+keurig+reservoir+with+vinegar PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4421460/normal_6000abefd1266.pdfIn PDF document text
    • http://idealicaufficiale.website/cronograma_semanal_de_atividades_wordsq08t.pdfIn PDF document text
    • http://espaceabonne.com/animal_world_map_vectorrxmos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417045/normal_6025f0741a4ca.pdfIn PDF document text
    • http://evilcheats.fun/sun_cellular_prepaid_internet_promo_2019y92an.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377113/normal_5fe4fbd778015.pdfIn PDF document text
    • http://rubisteq.online/ap_grama_sachivalayam_syllabus_in_telugu_2019r39bt.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nexopuvesoreben.epizy.com/audit_report_definition_in_business.pdfIn PDF document text
    • http://rekujub.rf.gd/white_tiger_netflix_us_release_date_and_time.pdfIn PDF document text
    • http://kepagewav.atwebpages.com/xovabasawopevisu.pdfIn PDF document text
    • http://wadoromutisagar.myartsonline.com/34224026751.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/zupuduvabipa.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_off0000e0b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B5 5240 bytes
SHA-256: 730d569c321d2064a164cd9710936fc4570ad73d742a67dac07ab4b7a9fff586
font_01_sfnt_off0000f29b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF29B 10828 bytes
SHA-256: f43e60eeda0ca87f50b5a7db661a2f9e98bacf4723202e8a2f6c624ac115aa38