Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c52488dc2f6ef2f…

MALICIOUS

PDF

67.0 KB Created: 2021-03-03 18:03:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7becc6954625d9c14db2c01d9d4d8f99 SHA-1: b4b558f8c79eb673ed22f482fbe701c68e179d1d SHA-256: 2c52488dc2f6ef2f65756b2b8564d57947f34e0f874fe43bd644faf531bdc9f8
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://jacksth.ru/wix?keyword=no+soy+perfecta+pero+te+amo+cancion PDF link annotation
    • https://cdn.sqhk.co/xolanikipiz/FjaLjgx/supow.pdfIn PDF document text
    • https://bajupeboxima.weebly.com/uploads/1/3/5/3/135327322/14136.pdfIn PDF document text
    • https://rorekejufekate.weebly.com/uploads/1/3/0/7/130740186/1f7a17e214b69.pdfIn PDF document text
    • https://wemedasexokava.weebly.com/uploads/1/3/4/5/134512162/tumezuwijonegak-berofadidu-xafita-fadowixuvo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383572/normal_603f224beb156.pdfIn PDF document text
    • https://kujibolivobukib.weebly.com/uploads/1/3/1/1/131163991/kekijek-xiworologurava-xomewalum.pdfIn PDF document text
    • https://selepofobalolu.weebly.com/uploads/1/3/1/8/131856949/raxilitagaliza-lugutoxuperug-fonozuz.pdfIn PDF document text
    • http://gagimubu.mywebcommunity.org/how_to_structure_spanish_sentences.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/bamodikigawiparelito.pdfIn PDF document text
    • https://s3.amazonaws.com/vonusirukete/wakusebijomisib.pdfIn PDF document text
    • https://s3.amazonaws.com/zoxewudunigus/chhattisgarhi_movie_site.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/kewefasodojawof.pdfIn PDF document text
    • https://s3.amazonaws.com/wofaxil/chapter_1_english_class_10.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_off0000c89c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC89C 5200 bytes
SHA-256: 360376a0dfeff7d380a5d0dac9078231c4a325b32deefd8745dc8f108c539c3c
font_01_sfnt_off0000da4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA4A 10756 bytes
SHA-256: c5a86241a24471ed0f3380dfb1e443f3330f245c8be273d1b0c53051e5bb82fb