Malicious PDF — malware analysis report

Static analysis result for SHA-256 4816dedee05f963d…

MALICIOUS

PDF

69.2 KB Created: 2021-02-20 21:44:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a4bbfb49cbf2b92f7f6218e678f0283c SHA-1: a8191e4fed7a0147b2a7f0c076e48074dae40c8f SHA-256: 4816dedee05f963ddc9eda7a3e6a0b8a3a00408040e7efe3456c88d8042f2ca5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/wb?keyword=howl%20poem%20reading PDF link annotation
    • https://linekepev.weebly.com/uploads/1/3/4/0/134041162/479d934bdbe42e.pdfIn PDF document text
    • http://xosijitede.22web.org/fafofasuvusipibajexa.pdfIn PDF document text
    • https://bikezurikol.weebly.com/uploads/1/3/4/6/134612173/wajaduva.pdfIn PDF document text
    • https://cdn.sqhk.co/popaxutu/XHihLie/5_seconds_of_summer_album_all_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/tekuligote/heshdhc/ryu_hitboxes_smash_4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375204/normal_5ffd1909311fb.pdfIn PDF document text
    • https://titumakusijuvap.weebly.com/uploads/1/3/4/3/134353199/bugejumax.pdfIn PDF document text
    • https://koduxiwarutuj.weebly.com/uploads/1/3/2/7/132740502/00d076e83271.pdfIn PDF document text
    • https://cdn.sqhk.co/dasewugiru/i6To1Kz/outdoor_parkour_gym_near_me.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gadusevi.rf.gd/bioscience_reports_impact_factor_2017.pdfIn PDF document text
    • http://zodexalanokaxaj.rf.gd/british_society_of_haematology_guidelines.pdfIn PDF document text
    • http://jonemif.epizy.com/kaxikajidotopanofikikewuz.pdfIn PDF document text
    • http://bibosisiv.epizy.com/free_apa_annotated_bibliography_template.pdfIn PDF document text
    • http://tupenanuziki.epizy.com/14896018392.pdfIn PDF document text
    • http://bitegovaduxigag.epizy.com/what_is_the_weather_today_answer.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_off0000d17f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD17F 5156 bytes
SHA-256: d68f940985337b087df88113a3bc154f4b8f081bc9b7874da4fad8c112c245f4
font_01_sfnt_off0000e300.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE300 10892 bytes
SHA-256: 861d0bc6138680aed90c4f77650ac05c5861c37007c75230af5a0fc5d94945ab