Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9d1e60ae38d6333…

MALICIOUS

PDF

72.2 KB Created: 2021-02-12 14:44:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a13972b579e5baf93ab64746b16166fb SHA-1: 1d917ae8cdaf1571d7abe44ad4d4cb1b3d5375e5 SHA-256: a9d1e60ae38d633303163363110c868ef08e588744d64cccc5baa57fee1e2948
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://maypoin.ru/wix?keyword=2003+cadillac+cts+repair+manual+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4465938/normal_5fe6feeea8179.pdfIn PDF document text
    • http://mishgen.com/roniliwanakikejajab55z9f.pdfIn PDF document text
    • https://kufudazasa.weebly.com/uploads/1/3/4/6/134626120/savolubunaki.pdfIn PDF document text
    • http://faromobipon.22web.org/attendance_record_excel_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486215/normal_5feecbfc1f27b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370092/normal_5fe45ae753c93.pdfIn PDF document text
    • http://valobunobatab.iblogger.org/lettre_encyclique_caritas_in_veritate.pdfIn PDF document text
    • https://lurekoba.weebly.com/uploads/1/3/4/0/134018443/6649944.pdfIn PDF document text
    • https://pusotovoxidelo.weebly.com/uploads/1/3/1/6/131637553/gazojaguwufazojuxalu.pdfIn PDF document text
    • http://sreview.online/bosibokalekamilovekutadopfmuyl.pdfIn PDF document text
    • http://guvinesusavilo.iblogger.org/albacore_dinghy_tuning_guide.pdfIn PDF document text
    • http://bilkan.fun/miller_review_of_orthopaedics_6th_edc6cvu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pomuvoxibi.epizy.com/best_racing_games_pc_2018.pdfIn PDF document text
    • http://fopekexu.epizy.com/ranofolefidolilejulosab.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_off0000d6b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6B4 5644 bytes
SHA-256: 9d873cccff3e5bfce0275a2ff5c4b46cca88ee3f67c121ea5517c9606d2d3585
font_01_sfnt_off0000e9d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9D2 13580 bytes
SHA-256: 60aedc8c38c0b37e229b1a1ae4b2d1350b710a41e3ab49eb073592bc315e954b