Malicious PDF — malware analysis report

Static analysis result for SHA-256 d37013cde521bd07…

MALICIOUS

PDF

59.5 KB Created: 2021-02-17 21:48:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3e44c1cc1b3f086d590afc677541e344 SHA-1: 53607616f2b706d6d8ae9e36171cdebbd8417c3f SHA-256: d37013cde521bd07b81b162d98539b75e2390c615e5355f59fd75037818614ac
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/wb?keyword=car%20service%20business%20plan%20pdf PDF link annotation
    • https://cdn.sqhk.co/mifopanikil/sgj8dge/31763331653.pdfIn PDF document text
    • https://cdn.sqhk.co/vefoxewijuja/ahjdIib/advertising_manager_jobs_in_dubai.pdfIn PDF document text
    • https://cdn.sqhk.co/firokizita/hf0sxSp/brimming_river_definition.pdfIn PDF document text
    • https://cdn.sqhk.co/nonagidux/cKEhxNv/xebemelovubixu.pdfIn PDF document text
    • http://kuvelopomegemes.iblogger.org/how_to_learn_tattooing.pdfIn PDF document text
    • http://popubim.iblogger.org/rutezak.pdfIn PDF document text
    • https://cdn.sqhk.co/mezugifosa/jhvFeHi/graphic_designer_job_salary_uk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nenimon.epizy.com/tofiwudipefutelenifi.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/etiology_of_congestive_heart_failure.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/saucony_guide_iso_4.pdfIn PDF document text
    • http://vuxijupobagaf.epizy.com/striped_linen_sheets_australia.pdfIn PDF document text
    • http://talakukatutevib.epizy.com/vidmate_application_free_for_pc.pdfIn PDF document text
    • http://besenasoxa.epizy.com/60123374246.pdfIn PDF document text
    • https://s3.amazonaws.com/vudivuzakal/3064287923.pdfIn PDF document text
    • http://jusudab.epizy.com/christmas_card_templates_for_photographers.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_off0000b04c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB04C 5252 bytes
SHA-256: c4a9e50b39927226d7584a9e9c4af16be3076a611f00feadb423c812168e0317
font_01_sfnt_off0000c234.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC234 9152 bytes
SHA-256: 0468e2a9fb58326899f5e69b18c5cca46fbbbdbabcb8c5ce526ec1e2bc859f82