Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdb847240a360ec8…

MALICIOUS

PDF

79.0 KB Created: 2021-03-08 22:34:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 2a282903774528aec48bc623d4b5f9a0 SHA-1: b852600a2c1184b68259c9d4fefc7533c0181ccc SHA-256: fdb847240a360ec8ea1daf6fc48fbb139a5e0d619483218c3fb06bc3a49e5f4a
96 Risk Score

Malware Insights

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

The file is a PDF identified as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to 'soxebez.ru', suggesting a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate an intent to redirect the user to malicious content, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://soxebez.ru/award?keyword=snt+tc+1a+2020+pdf+espa%25C3%25B1ol PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4472182/normal_602887434e737.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464077/normal_5fe4fa4ec2b5e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370288/normal_5fe394fa17bdd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451228/normal_5fe35224d1229.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374519/normal_60386b00eecc3.pdfIn PDF document text
    • http://zopokujejisolan.getenjoyment.net/dipaxowe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417986/normal_5fcd58bc77fda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447263/normal_60330e1a4243d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409405/normal_60219a645e462.pdfIn PDF document text
    • http://suvuxivenorum.mypressonline.com/meguwefifunubazakeki.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465274/normal_5ff500c1daabc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374715/normal_5fc6762e48aee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365546/normal_6023059496ac6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403141/normal_5fe2603da314f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406777/normal_603e1709e52df.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453560/normal_5fc87363c093a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455659/normal_601f6e056c6d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383795/normal_60306fe1615a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427103/normal_601d9bd48d67c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470027/normal_5ff40860b0d6a.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/0c3f5372-d74c-44b0-9d05-f35af5f79875/40692322416.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e7232fd-0657-4b5e-ae99-83615807c06a/tekegezarujufaranukax.pdfIn PDF document text
    • http://telusomabufa.onlinewebshop.net/will_ahsoka_tano_be_in_episode_9.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60573fae-62dd-4dba-9989-45d09ca2b021/kebumabinaxaludojozofe.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_off0000e93c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE93C 5692 bytes
SHA-256: 79a5b046c71de1c762a7e8a4ae97f7ec905011e398e42d5d915086714cc1d51d
font_01_sfnt_off0000fc7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC7E 15480 bytes
SHA-256: e56b23b3f46a07d8661c62962e8c2b6e44725b5db23b95dd8132af3cfe1d76b7

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