Malicious PDF — malware analysis report

Static analysis result for SHA-256 49fc63fbe6e9c304…

MALICIOUS

PDF

66.3 KB Created: 2021-03-02 04:50:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e32c7233967f149f4616ca7e67a7cd4c SHA-1: d05cb52b28dfc9f4c2602cf9936669c695b80bbe SHA-256: 49fc63fbe6e9c304d1662cf9cd0673b00944805485bda2934da6f859d2528ea8
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://lozipotod.ru/wix?keyword=the+official+guide+for+gmat+verbal+review+2015+pdf PDF link annotation
    • http://nesobaka7.xyz/zirapix5f2w.pdfIn PDF document text
    • http://larijasetejupaz.mypressonline.com/2013_yfz_450_owners_manual.pdfIn PDF document text
    • http://lozejebivo.scienceontheweb.net/construct_2d_array_python.pdfIn PDF document text
    • http://pakirekugep.scienceontheweb.net/41666075595.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410201/normal_5fd1f01e40f10.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369915/normal_602e1a8a18f43.pdfIn PDF document text
    • http://kuxalowakanuxed.iblogger.org/47755212125.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tiwogiponifi.rf.gd/307101575.pdfIn PDF document text
    • http://lijobexabip.rf.gd/wibuxogaduzesufevomom.pdfIn PDF document text
    • http://nobegik.rf.gd/lurediliboxox.pdfIn PDF document text
    • http://fadifisevak.epizy.com/world_of_warcraft_classic_first_aid_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/62265226179.pdfIn PDF document text
    • http://nanesipub.rf.gd/guidelines_on_profit_equalisation_reserve.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_off0000c092.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC092 6080 bytes
SHA-256: 90db6217686f9bca508ca224678c4f8c0859dbf411e35db047c9067cc276d74c
font_01_sfnt_off0000d53a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD53A 10908 bytes
SHA-256: 477cf37488f246571f7031f892c4da0fd3206008112b335f08c8defad4946f8c