Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d2235e3abe72d0b…

MALICIOUS

PDF

68.3 KB Created: 2021-02-17 18:53:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: bad2dccd9524c74b247982e3f571c42a SHA-1: cd682b93a01ffc07bf5fb651e5321b68663a658d SHA-256: 2d2235e3abe72d0bfce65c95accb117002e29e740ca4b7169e92d42de5c21951
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://leonvi.ru/123?utm_term=how+to+calibrate+pdp+controller PDF link annotation
    • https://nobixerevogug.weebly.com/uploads/1/3/4/4/134481004/5009706.pdfIn PDF document text
    • http://megalit-korolev.ru/38511396894oh9gy.pdfIn PDF document text
    • http://geesecam.com/taxuxipabovatasinizujanetjgx5.pdfIn PDF document text
    • http://creamwalls.online/lifozoberew02bx.pdfIn PDF document text
    • https://zidovularirijap.weebly.com/uploads/1/3/4/7/134718784/9825346.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366381/normal_5feb28ce94469.pdfIn PDF document text
    • http://fruitik.space/noxirujkkj66.pdfIn PDF document text
    • http://ek-arenda.ru/pimajidogugudhti5.pdfIn PDF document text
    • http://microbladingcertificationdfw.org/adobe_reader_softonic4h5gq.pdfIn PDF document text
    • http://bodyita.space/dibunatimonarodekije9ia2q.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412588/normal_5fdbdb062064e.pdfIn PDF document text
    • http://nenugatigubom.66ghz.com/rolotegukelefixorenud.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jikusona.rf.gd/interstitium_organ_scientific_reports.pdfIn PDF document text
    • http://wilopomuba.epizy.com/ronativetomakasutigamilet.pdfIn PDF document text
    • http://walarerefuzaw.epizy.com/59613355426.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_off0000cf6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF6C 5084 bytes
SHA-256: 64e094916d77b853e2957de0df2a2250d8610c110afd57ca3e325fe6a24d5ece
font_01_sfnt_off0000e0cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0CD 10484 bytes
SHA-256: 688c66c718f9084647994c8e21a1d379f441b5b06cd1276b974b96f60c4844f4