Malicious PDF — malware analysis report

Static analysis result for SHA-256 da9cde14740690f2…

MALICIOUS

PDF

67.6 KB Created: 2021-02-26 17:43:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a2d082f7146ddf1d64c56e9cc6b35593 SHA-1: ba7dc4c343a4730d85233e40390fa081f17c06dd SHA-256: da9cde14740690f26e433d8e9ee25f4c23ed7f36f4aa9ff1e48bae62f2308125
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ponafet.ru/wix?keyword=bissell+cleanview+rewind+pet+filters PDF link annotation
    • https://joluxowupowuxi.weebly.com/uploads/1/3/4/4/134478900/8612525.pdfIn PDF document text
    • https://kobadoxe.weebly.com/uploads/1/3/4/3/134310171/8665350.pdfIn PDF document text
    • https://voranafirodibug.weebly.com/uploads/1/3/2/6/132696030/ad8243e48d78117.pdfIn PDF document text
    • http://tosety.xyz/naropacxcl5.pdfIn PDF document text
    • https://cdn.sqhk.co/genizataxom/eAgjvOZ/free_construction_project_management_software_for_small_business.pdfIn PDF document text
    • https://nugekepujipa.weebly.com/uploads/1/3/4/3/134318644/sogigitugetamav-nerowi.pdfIn PDF document text
    • http://vifaborabab.22web.org/sebozumalurozafe.pdfIn PDF document text
    • https://fuvexowigirupog.weebly.com/uploads/1/3/4/8/134896800/206787.pdfIn PDF document text
    • https://cdn.sqhk.co/felegabiw/gnjaggi/hockey_guidelines_covid.pdfIn PDF document text
    • https://cdn.sqhk.co/gadakoferupa/ifjdjge/dragon_mania_legends_hack_pc_windows_10_download.pdfIn PDF document text
    • http://lg-supportteam.com/switzerland_ice_hockey_national_league_tablecrg04.pdfIn PDF document text
    • http://expressvpn.store/genetics_from_genes_to_genomes_6th_edition5pp1b.pdfIn PDF document text
    • http://dutov.org/rapogoguzehpjgc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jirizaxewusi.epizy.com/cisco_spark_plus_admin_guide.pdfIn PDF document text
    • http://wilesodirax.epizy.com/fimumaw.pdfIn PDF document text
    • http://vavazewesepato.epizy.com/calling_card_design_template_free.pdfIn PDF document text
    • http://bowukadosajolu.epizy.com/nixemi.pdfIn PDF document text
    • http://tomedokuboder.epizy.com/50006427801.pdfIn PDF document text
    • http://janibiledepe.rf.gd/how_to_finalize_a_dvd_toshiba_recorder.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_off0000cb0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB0B 5352 bytes
SHA-256: f0ce715a84a520c8586e73d0d5a5988215a47d313bfe87e44c544a07fd487df9
font_01_sfnt_off0000dd6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD6A 9944 bytes
SHA-256: 59110d7133c1966c9d67b6ac4cc973da9f0309d4f552b6ac6e1c2a0f8f62d064