Malicious PDF — malware analysis report

Static analysis result for SHA-256 06dc2336d968c313…

MALICIOUS

PDF

76.8 KB Created: 2021-03-24 16:09:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 06b6dd3d2d41154123ac19e50ac57bdc SHA-1: 60aa869c36d2b9591a2d49d7fa238fbde72c2700 SHA-256: 06dc2336d968c31347d72d05f4e9330bfcfe747cf234f1d2d70a648f3fac828a
126 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified as a phishing attempt by ClamAV and ML classifiers. The document body, though heavily obfuscated, suggests a lure related to 'alliterative morte arthure pdf'. The presence of numerous external links, many on disposable hosting, further supports a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://mezovuduw.ru/award?keyword=alliterative+morte+arthure+pdf PDF link annotation
    • http://lifeeuro.info/xilubokofuwedusigademinuqa9tz.pdfIn PDF document text
    • http://uk-delfin.ru/gevimodatikigawinugubugpc3u.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476274/normal_605352c7cbd01.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447447/normal_600149ec32324.pdfIn PDF document text
    • http://sutarakikim.scienceontheweb.net/genetica_de_poblaciones.pdfIn PDF document text
    • http://zoguponuwuxoli.medianewsonline.com/cannot_connect_to_my_cloud_dashboard.pdfIn PDF document text
    • http://e-devletodeme.net/526977853858lxw4.pdfIn PDF document text
    • http://filanion.online/lemavojaxiwagunidurisoka3z3s.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420743/normal_600b31e7b04cb.pdfIn PDF document text
    • http://jaralet.getenjoyment.net/26119154228.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393632/normal_602019f704bbd.pdfIn PDF document text
    • http://xtrading.buzz/xivabijog8rqs9.pdfIn PDF document text
    • http://detonic-hypertonie.website/conan_exiles_star_metal_locations_mapodhhv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470683/normal_5ff583416ec7c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2675599d-0b5e-4af8-acc4-4a2c61ab159b/66311288003.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bd674e7-2e65-48d2-ab13-8a5c40389195/kujotojakinetaxi.pdfIn PDF document text
    • https://4ad55601-b8ab-4ae0-bc0e-e90069072326.filesusr.com/ugd/3aca14_bef555a20c5b4183915959af61d9de5f.pdf?index=trueIn PDF document text
    • https://233b4d2f-9c44-4004-b776-098ebc281e6f.filesusr.com/ugd/7f980c_77254a2d98e4486fb035f9cc7bf616ff.pdf?index=trueIn PDF document text
    • https://9534cc33-30dc-483d-bed2-8d5691710d48.filesusr.com/ugd/3835dd_2cb7bcec443549ae8f9be2783fb8460d.pdf?index=trueIn PDF document text
    • https://6e8b94c7-278c-4a65-9c30-8d61c93a8f31.filesusr.com/ugd/9ff9b8_2b8cd920388a44d29d57a653adce32a6.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/3170e315-7243-4494-832f-929b2c4d3bea/what_are_the_5_habits_of_mind.pdfIn PDF document text
    • http://safedoguno.onlinewebshop.net/zmodo_h.264_dvr_network_setup.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_off0000f035.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF035 5152 bytes
SHA-256: 3d52bdd4ce780bfbcb84105acfc86344fd14107be956f428fc967cc49d741806
font_01_sfnt_off00010198.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10198 10688 bytes
SHA-256: a422065dd4b6d108c41acdd37de909a1a0cf433216e80475773d77419a140155

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