Malicious PDF — malware analysis report

Static analysis result for SHA-256 532bda39bcb2ddd5…

MALICIOUS

PDF

72.3 KB Created: 2021-02-19 22:38:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 494dc2cf1227f3ee123b55ff179d1c56 SHA-1: a862aaf93294ac56d25566c66a9e9e54e138e40f SHA-256: 532bda39bcb2ddd52ac58eef34149c868f62e75d6dcf1f8fcac82487616a6f19
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/wix?keyword=anatomy+and+physiology+case+studies+with+answers PDF link annotation
    • http://nukels.xyz/shotgun_sound_clipwhwii.pdfIn PDF document text
    • http://zumbayuliya.online/rizetowewagixulugodonogiryu0f.pdfIn PDF document text
    • http://gizapiretade.iblogger.org/jaclyn_hill_palette_name_sheet.pdfIn PDF document text
    • http://olymp-trade.top/blades_of_brim_hacked_apk1awn8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386095/normal_5fe2fc1325060.pdfIn PDF document text
    • http://shmelev.pro/docker-_compose_commands_cheat_sheetffkhh.pdfIn PDF document text
    • http://covidcapsule.world/49086579222u07ki.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386607/normal_5ff50cec0f8ac.pdfIn PDF document text
    • https://kowalarezanir.weebly.com/uploads/1/3/1/4/131438161/kerixumisizolew-pivadomafe.pdfIn PDF document text
    • http://nubolutlion.xyz/casio_calculator_fx-_991es_plus_manualupgzm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://joretewad.epizy.com/dusogulir.pdfIn PDF document text
    • http://papawipowujujed.rf.gd/49889920580.pdfIn PDF document text
    • http://mibavened.rf.gd/luromorutam.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_off0000dd8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD8B 5672 bytes
SHA-256: c58284344f45e5b82844da4e67f62894b858018537b6b87a2361fed4f064c88a
font_01_sfnt_off0000f0ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0CE 10268 bytes
SHA-256: d3b37993afa8f492dfe1608f0b21388bf85c9e6ff832f44ee0188a17fe02b1b9