Malicious PDF — malware analysis report

Static analysis result for SHA-256 e06ded42a1f53d61…

MALICIOUS

PDF

90.7 KB Created: 2020-12-27 21:18:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 84b25363922276f1ebdfd82f1fb084e2 SHA-1: a25cea1eb36baf40fbd7f1ea271624d95502a920 SHA-256: e06ded42a1f53d613341fe4b0d08674570c13c303c91085150ba320bd6360113
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs to a suspicious domain, likely intended to host a phishing page or download further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into navigating to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafffi.ru/123?utm_term=ap+bio+ch+17+from+gene+to+protein PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4391000/normal_5f9b846db4242.pdfIn PDF document text
    • https://xasukibumit.weebly.com/uploads/1/3/4/7/134749231/mepipaw.pdfIn PDF document text
    • https://nakigere.weebly.com/uploads/1/3/4/6/134608851/5064265.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413978/normal_5fdbe11711afa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368731/normal_5f9e6bd67ae83.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374013/normal_5f8b9a2109cf0.pdfIn PDF document text
    • https://serekarivevug.weebly.com/uploads/1/3/1/4/131407867/nupawom-gunapuwokijid-fadokatiwelat-nidopomegeseg.pdfIn PDF document text
    • https://fopojikanerev.weebly.com/uploads/1/3/4/8/134888820/3058214.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365553/normal_5f86f67cc8f29.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372721/normal_5f91f4e6ae485.pdfIn PDF document text
    • https://toripifisesu.weebly.com/uploads/1/3/4/3/134367164/fikubazisu.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zifilobesumafi/vibakixolasalesejasinil.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/remove_watermark_from_in_adobe_professional.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_off00011da7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DA7 1728 bytes
SHA-256: c3ecb91154aeff3d6a89ea2013454d09fc1716480a186067f41f6bd680916605
font_01_sfnt_off00012632.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12632 5272 bytes
SHA-256: addbec6582b12805b51dd052acdfac6597bf3f5bd5990f2053f2ebf3d9ee62d9
font_02_sfnt_off0001380e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1380E 10912 bytes
SHA-256: 4feb178c8c3d6e34608a843f5459d8f9c937a10a6fcaeabcfc751b1a8f88093a

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