Malicious PDF — malware analysis report

Static analysis result for SHA-256 e343be6f127a86b1…

MALICIOUS

PDF

75.0 KB Created: 2021-03-15 17:10:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 881733cc07a5d00f3d5967af8ddcaa88 SHA-1: 627b7fca8aef61895036a326eaf9fe5a2d80cb16 SHA-256: e343be6f127a86b1fa2b13af16fedffbca68263654519d13885d481f925de19c
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to a suspicious domain, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, appears to be a lure related to 'porous asphalt pavement', likely to trick users into clicking the malicious link.

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://bologen.ru/award?keyword=porous+asphalt+pavement+pdf PDF link annotation
    • https://zonapabudaxaj.weebly.com/uploads/1/3/4/0/134017389/8804856.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491410/normal_5fc9993143319.pdfIn PDF document text
    • https://lokesikaneweb.weebly.com/uploads/1/3/1/4/131437695/lakukodigebojinikoga.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369654/normal_5fd3215279c2d.pdfIn PDF document text
    • http://sayseedokg.com/linksys_default_username_and_password_wrt54gru7mp.pdfIn PDF document text
    • http://opticsystem.website/cradle_to_cradle_certified_products_programm1nz6.pdfIn PDF document text
    • http://dietnatur.fun/tidipaluvawebijojusk0i2.pdfIn PDF document text
    • http://islandlandscapesbb.com/how_to_reset_kenwood_dpx501btwlz51.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487419/normal_5ff9d684efdb7.pdfIn PDF document text
    • https://vapukukoson.weebly.com/uploads/1/3/0/7/130776878/5a6889.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481821/normal_6010c4f981d62.pdfIn PDF document text
    • http://wavapivanuf.scienceontheweb.net/togorutugikeju.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450512/normal_601a799bea80a.pdfIn PDF document text
    • http://bitalotava.scienceontheweb.net/nulozoz.pdfIn PDF document text
    • http://itanto.space/21623429806nxj7b.pdfIn PDF document text
    • https://silagonamep.weebly.com/uploads/1/3/1/4/131452845/nivajutodoroto-vuwezexevopi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/polexebuj/sitepurivinovavuwikuvate.pdfIn PDF document text
    • https://s3.amazonaws.com/viregujipowuru/new_album_songs_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/44249173150.pdfIn PDF document text
    • http://rosevasejila.myartsonline.com/jedunimidawikel.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/60071303102.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_off0000e8cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8CD 5344 bytes
SHA-256: 215b60e3b0ecc2c4373e3bfe06d8e9a79cf30e30d00f033a1eb76bb2e6d03711
font_01_sfnt_off0000fad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAD8 10556 bytes
SHA-256: 670b154199e7fa598900d4848271556a8edd566e6023fe3ef8879ff31a2b2f00

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