Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee8d5be179120d8b…

MALICIOUS

PDF

75.3 KB Created: 2021-01-31 11:06:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: f3f45577bec20329e44b142821cc05a5 SHA-1: 1fc7446945bd5a8adb686412391cadf8d9bdd389 SHA-256: ee8d5be179120d8b1da5f7ea4c9bc3d5808a4dca5c2cb0888a9c8cce9320bc5d
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The embedded URL points to a domain that appears to be part of a phishing lure, masquerading as a sports match report. No scripts were extracted, but the overall structure and URL suggest a phishing attempt.

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://seumenha.ru/aws?utm_term=dortmund+vs+leverkusen+match+report PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4379221/normal_5fca5cece9ef5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415065/normal_5fe90953c14bf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471488/normal_5fe2b3fd1f1e4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417656/normal_5fd68d8b64e2b.pdfIn PDF document text
    • http://legendnat.space/gaveloletatokewv30xj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4504788/normal_60102fc783242.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496616/normal_5fd80b93f168c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409627/normal_5fe29c356c6fc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377663/normal_5feb23a54a235.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377663/normal_600d45cfd4ea9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421640/normal_5ff8c696bc9c6.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/fowonaxul/gamalaso.pdfIn PDF document text
    • https://s3.amazonaws.com/bisazabe/67753492688.pdfIn PDF document text
    • https://s3.amazonaws.com/dabatisew/19623193504.pdfIn PDF document text
    • https://s3.amazonaws.com/gurafoga/paxukinadamokaxe.pdfIn PDF document text
    • https://s3.amazonaws.com/lusabifef/78328489138.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/color_atlas_of_brainstem_surgery.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_off0000e6ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6CA 5436 bytes
SHA-256: c25ea699ebcf36a1de849392f2899f726370a9eaf7c52e27fcc1b35bed472c36
font_01_sfnt_off0000f925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF925 11640 bytes
SHA-256: 51a233db433282b3e400b01b3950d4ecb81635419c2c42f73928ef0443804047

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