Malicious PDF — malware analysis report

Static analysis result for SHA-256 4056caa45e146b15…

MALICIOUS

PDF

77.2 KB Created: 2021-02-23 15:06:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: eeb9677fa8ebced4f440f0f3f69692ee SHA-1: 75a66c31218217230030594d02835199adef3737 SHA-256: 4056caa45e146b15cf464009bc8105232fc6e74fd1874b8239729954c79b1621
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/wb?keyword=dragon%20age%202%20cheats%20pc%20console%20commands PDF link annotation
    • http://bavedibigilomit.66ghz.com/airbrush_full_unlocked_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/sirojenu/iCLhbjd/free_color_world_go_launcher_themes_free_download.pdfIn PDF document text
    • http://rejudatawenu.iblogger.org/rectangular_to_polar_form_in_matlab.pdfIn PDF document text
    • https://cdn.sqhk.co/retesixabe/fjhwghg/belavigorafusupiwoneriva.pdfIn PDF document text
    • http://jenirafona.22web.org/lagolemaxamaxe.pdfIn PDF document text
    • http://freshmind.net/50_tons_de_cinza_baixar4rcz4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370077/normal_5fdb56a12baa5.pdfIn PDF document text
    • http://dirujadejefogax.iblogger.org/introduction_to_psychology_noun.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375515/normal_5fd065f4b88db.pdfIn PDF document text
    • https://cdn.sqhk.co/tefulobesa/jf4Uhgf/78446398220.pdfIn PDF document text
    • http://gonosijotu.iblogger.org/31332113124.pdfIn PDF document text
    • https://cdn.sqhk.co/naziwixolagu/igiiji6/crazy_pig_simulator_gogy.pdfIn PDF document text
    • http://sizoxuk.22web.org/suwetanuzavuv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nawexox.epizy.com/zasofolasufubisa.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/radifogavatiwewevime.pdfIn PDF document text
    • http://sugizujesel.epizy.com/gepofopalakinok.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/97699172771.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/32682141564.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_off0000f0c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0C1 5616 bytes
SHA-256: fd82baccf76aca2ec81a16bcd2f1002e2bccf87ac07cb1c5dabf1bc023a6d54c
font_01_sfnt_off000103b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103B7 10504 bytes
SHA-256: 4b4b3a5255971153b92de275bf18dff05868c9e04ed8031049be77229b5a25fb