Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5ce12a2caea7934…

MALICIOUS

PDF

73.2 KB Created: 2021-02-14 04:50:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 84f474e1c6c91a809fc2a7a1248e4942 SHA-1: 3bd3a2f4dd5d7c7636b0736e6423227f6957c1f7 SHA-256: f5ce12a2caea7934467ce49522a92eae615b6e8d096ad2a898f3e8a8a7f1d910
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://baarspo.ru/aws?utm_term=automatic+call+recorder+pro+apk+latest+version PDF link annotation
    • http://zanartcc.net/tv_serials_app_freea5yvr.pdfIn PDF document text
    • http://lesantyqas.online/lipid_metabolism_examixqpk.pdfIn PDF document text
    • http://sdfafq.info/pc_google_chrome_windows_7f4mit.pdfIn PDF document text
    • http://kokofiru.22web.org/excel_spreadsheet_on_android_tablet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480591/normal_5fde2f8489854.pdfIn PDF document text
    • http://omerkatanalp.com/11474896507e6rms.pdfIn PDF document text
    • https://cdn.sqhk.co/vovewotutal/hebiaif/zong_free_internet_gift_code_2019.pdfIn PDF document text
    • http://lakshmi-store.ru/terra_mystica_faction_selectionsbj3z.pdfIn PDF document text
    • https://cdn.sqhk.co/vilitemeru/jftZgg9/shellac_nails_done_at_home_with_acetone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481417/normal_5fdac6f311125.pdfIn PDF document text
    • https://cdn.sqhk.co/wudenedu/lgdhigd/mirebakojali.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kaxogesidod.epizy.com/fuxigevevo.pdfIn PDF document text
    • http://tabojiterakan.rf.gd/import_vcf_file_android.pdfIn PDF document text
    • http://bezukovopobav.epizy.com/93691079964.pdfIn PDF document text
    • http://bajejefi.epizy.com/derry_nh_police_incident_report.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_off0000d9c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9C6 5332 bytes
SHA-256: 5afd53f30923160ef0d444398de8921f21a26674e6d720ed4e9804c0dffbf9a7
font_01_sfnt_off0000ebd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBD1 13904 bytes
SHA-256: b32080829f70db9e84e3c283e6df50c47b0479682b0c3dc2da4932f445792229