Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b226d80b46831a2…

MALICIOUS

PDF

68.6 KB Created: 2021-02-28 07:37:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5c565e8c085b009689e645e8353904d6 SHA-1: 0d19522946ebfa56c5cbc0d99648da3f8ed29afd SHA-256: 3b226d80b46831a2fdf60b17ea3d1afd9781907aeb11ed418c1ae07a4418a383
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://mezovuduw.ru/award?keyword=diana+gabaldon+outlander+audiobooks PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4460678/normal_60020266e3582.pdfIn PDF document text
    • http://yoptan.space/31039427386yz0fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447874/normal_601a090cb561d.pdfIn PDF document text
    • http://xawikeroteguvu.iblogger.org/38902126263.pdfIn PDF document text
    • http://vovpomnim.ru/pedurosajigutafojxvnk.pdfIn PDF document text
    • https://cdn.sqhk.co/jasamomedam/jifChf5/siren_head_horror_game_download_android.pdfIn PDF document text
    • http://azorocheat1.xyz/hand_of_fate_2_judgement_guidehptw8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443812/normal_5fc6c0a8eb7d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463812/normal_5fd34cc452f7d.pdfIn PDF document text
    • http://waliduv.mypressonline.com/9584049277.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481061/normal_603aed5167a3b.pdfIn PDF document text
    • http://xulubapatoso.scienceontheweb.net/vabijizijonolekimus.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxeromewime/ogiLUih/jutakubajet.pdfIn PDF document text
    • http://mujudesuxiropa.sportsontheweb.net/resistor_color_code_calculator_-_3_4_and_5_band_resistor.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410432/normal_5fcef67793863.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kilarosine.atwebpages.com/timuxubafovelifabiz.pdfIn PDF document text
    • http://fidegaf.atwebpages.com/kekegilosunofetamasilaluv.pdfIn PDF document text
    • http://kamosos.epizy.com/13553432688.pdfIn PDF document text
    • http://pidusuzelaju.epizy.com/what_is_african_swine_fever.pdfIn PDF document text
    • http://dinixebun.epizy.com/66278009538.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_off0000d060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD060 5196 bytes
SHA-256: be39e27146bb9f719db4520791589944c616a5b03d188d0a50515a00de6cb337
font_01_sfnt_off0000e21e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE21E 10288 bytes
SHA-256: b4e3baba7a6be404bc44cf429043314d12f9181f1b2241a0136b49709e5263e1