Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3e6fc56c3f70f57…

MALICIOUS

PDF

82.1 KB Created: 2021-02-17 01:00:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: e946b50ae39db42241f7f89a82f8bfc0 SHA-1: 87fb2ea8033774be15ea13d5d8ba7c8ccce8e264 SHA-256: b3e6fc56c3f70f57f5fb10c8ae801cc0fa94b97693a97f278e47bb9388086e11
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The document body, though heavily obfuscated, contains references to software installation, aligning with the link farm's likely purpose of directing users to malicious websites for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://baarspo.ru/123?utm_term=honeywell+vision+pro+8000+wifi+installer+setup PDF link annotation
    • http://wisitens.online/cocktail_semi_formal_dress_code_malej1pec.pdfIn PDF document text
    • https://maxanijalezo.weebly.com/uploads/1/3/2/3/132303118/9245364.pdfIn PDF document text
    • http://idealica-italiaoficial.site/75892460854a6eq0.pdfIn PDF document text
    • https://xufodikufidu.weebly.com/uploads/1/3/5/3/135382923/vagovosiwajivet-duwaxax-popowekus.pdfIn PDF document text
    • http://reduslimitaly-ufficiale.website/imagine_dragons_smoke_mirrors_limited_super_deluxe_editionka4wk.pdfIn PDF document text
    • https://dapalirodo.weebly.com/uploads/1/3/1/4/131483520/gakipapetaliwux-pelogogoloz-wapoliwoselapi.pdfIn PDF document text
    • https://guduzuzej.weebly.com/uploads/1/3/1/6/131606672/zemasibimubutorad.pdfIn PDF document text
    • http://wtia.space/sentry_safe_error_code_flashingaby8m.pdfIn PDF document text
    • https://tazanuna.weebly.com/uploads/1/3/5/9/135977230/dakeju_zawuvujad_xawij.pdfIn PDF document text
    • http://antileqphh.site/sheets_of_plywood_jewsons38mof.pdfIn PDF document text
    • https://bituxomixa.weebly.com/uploads/1/3/4/1/134131270/7614567.pdfIn PDF document text
    • http://idealica-ituficiale.website/gta_sa_downgradegirlj.pdfIn PDF document text
    • https://cdn.sqhk.co/kigaratak/OfhacXH/wordpress_themes_free_download_ecommerce.pdfIn PDF document text
    • http://brandframeb.com/munugoiwmkb.pdfIn PDF document text
    • http://samettemiz.xyz/jujoliwobodewotomonafc4bs5.pdfIn PDF document text
    • https://buzotenugi.weebly.com/uploads/1/3/1/4/131408099/7178138.pdfIn PDF document text
    • http://ketosimple.online/diary_of_a_wimpy_kid_13d36qz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://reronagut.epizy.com/dofukoxulilegewuzabiga.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f22a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF22A 5328 bytes
SHA-256: 5c899d9cb130b0ea6c8f57281a23060b8c00dc978598e6b95172c720d36e3279
font_01_sfnt_off0001046f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1046F 11476 bytes
SHA-256: 6db761167de6c2a68cabe84d62f17163e0415a6a902825521e2d7eb1acbb44f3
font_02_sfnt_off00012b54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B54 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

Open this report in the interactive analyzer, or submit your own file for analysis.