Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e2ef2351dc26d32…

MALICIOUS

PDF

86.5 KB Created: 2021-02-18 11:53:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 257a08a356c4e94b6c1600a04ed2bef3 SHA-1: 0299a3f06eb7f3121622fdbe2dcd739bf13d0c1e SHA-256: 9e2ef2351dc26d32459542e8ffc93e8b0b46e812fff353feeca106707eb92231
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that impersonates a Samsung service center contact number, likely to trick users into clicking it. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to lead the user to a malicious site, potentially for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://bologen.ru/123?utm_term=samsung+led+tv+service+centre+contact+number PDF link annotation
    • http://storedubai.shop/1728125720b84co.pdfIn PDF document text
    • http://huseyincanx.com/compound_interest_kutasazwj.pdfIn PDF document text
    • http://lozhobelir.space/susiziwofizolasuj0whu.pdfIn PDF document text
    • https://mibajajezek.weebly.com/uploads/1/3/4/0/134017497/bd8fd42e35e6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388282/normal_6029b3515c294.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447631/normal_5ff4d34c87ec4.pdfIn PDF document text
    • http://vosalax.22web.org/metformina_equivalente_natural.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426558/normal_5fdf2e39a0c44.pdfIn PDF document text
    • http://mists.space/genuzetozotuzogiguseribosfuxip.pdfIn PDF document text
    • http://ig-support-service.com/61414513813e4jwq.pdfIn PDF document text
    • http://mishabelle.ru/30048350890iht43.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388276/normal_600760f84d187.pdfIn PDF document text
    • http://goossyy.online/cod_cold_war_beta_release_date_pcfk2qs.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
    • https://s3.amazonaws.com/bezutu/79038775177.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/a_g_c_r_full_form.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/saboxozibipumimefede.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/python_competitive_programming_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/certificate_of_conformity_toyota.pdfIn PDF document text
    • http://rodaselawowov.rf.gd/relagifiborevuvido.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_off000106c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106C9 5444 bytes
SHA-256: 867611cb6d4ce3fda188eee05d79abf82bd5c8b712ab7b8a4e5df4067b51fb29
font_01_sfnt_off0001192a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1192A 11004 bytes
SHA-256: c3423e11d62f6f42cc68ec9a943449a59025f29a5cfdb8f134336b64c991e51a
font_02_sfnt_off00013ea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EA0 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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