Malicious PDF — malware analysis report

Static analysis result for SHA-256 f11044dc17c406c5…

MALICIOUS

PDF

72.5 KB Created: 2021-02-27 13:41:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 49f330e60fda2838d8da1a09149a5453 SHA-1: df8cc1bcc3497aae864d326bbd8aba3f63fcd07e SHA-256: f11044dc17c406c5c8eba8c0695fef74101dd79c93a46b1861e96d619f7a72c6
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://fokemale.ru/wix?keyword=the+professor+is+in+pdf+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4485162/normal_6036883d221a9.pdfIn PDF document text
    • https://rowigoto.weebly.com/uploads/1/3/0/8/130813427/344246.pdfIn PDF document text
    • https://wonikisemuk.weebly.com/uploads/1/3/4/9/134902350/3567516.pdfIn PDF document text
    • http://trelon.fun/918048714956hpqr.pdfIn PDF document text
    • http://onlinesos.tech/vuzuzimopoweronezuxeboweqgihi.pdfIn PDF document text
    • http://nncucuucuc.space/mewisifoloxofomadcb3id.pdfIn PDF document text
    • http://mabirimelu.iblogger.org/araba_oyunu_gezginler.pdfIn PDF document text
    • https://kajugomurabamuj.weebly.com/uploads/1/3/0/8/130814292/f9d770240.pdfIn PDF document text
    • http://kengoru.space/caracteristicas_del_aprendizaje_auditivosrp9c.pdfIn PDF document text
    • http://50off.pro/78741915576t5nne.pdfIn PDF document text
    • http://differencecheats.net/67368229129p0800.pdfIn PDF document text
    • http://armada.technology/arduino_gsm_shield_sim900a_datasheetxblx3.pdfIn PDF document text
    • http://pepirizibizedel.22web.org/zikelew.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/tuxenipup/chennai_express_full_movie_480p_mkv.pdfIn PDF document text
    • http://tefotifomasun.epizy.com/reading_plus_level_j_story_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/antropoloji_anadolu_niversitesi.pdfIn PDF document text
    • http://gusalixofunek.epizy.com/tomapunujupano.pdfIn PDF document text
    • https://s3.amazonaws.com/dudigonifu/italian_accordion_music.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_off0000e0a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A7 5168 bytes
SHA-256: 58e5a2ba2a3030a47832f7175b8e71fa3f448cdb2fa58ac3085a45fa0a7243ff
font_01_sfnt_off0000f247.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF247 10240 bytes
SHA-256: c28585d43ea2f9958af6e7c2cc866f30e924f96c98e0bf70182861ef57faaaa4