Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecd5f5b38ea2e044…

MALICIOUS

PDF

75.2 KB Created: 2021-03-01 21:09:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 2a509515c727516a54a9efef898c2b05 SHA-1: 34c007fa7b56491c5d7f3fc34f591b67c7b4589e SHA-256: ecd5f5b38ea2e044c377ea37193e8e9cc00267f6e919a7f44fc7ef7bc00ca732
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that redirects to a phishing site, masquerading as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect users to malicious content, likely for phishing or malware distribution.

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://botokaw.ru/strik?utm_term=how+do+you+write+a+paragraph+in+excel PDF link annotation
    • http://nanonewe.scienceontheweb.net/jojupoxizakedokatoseseped.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370307/normal_601818e56d8f9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480897/normal_5fe251ae51092.pdfIn PDF document text
    • https://cdn.sqhk.co/belebudetub/hioiihb/detention_officer_jobs_el_paso.pdfIn PDF document text
    • http://visunuduxat.mypressonline.com/1154548781.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459796/normal_60172c4ce1115.pdfIn PDF document text
    • https://cdn.sqhk.co/molipigi/cjagijc/will_sacrifice_meaning_in_tamil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369912/normal_5fdaf5522ef31.pdfIn PDF document text
    • https://cdn.sqhk.co/sileluzorupo/9p1I5oY/91405531101.pdfIn PDF document text
    • http://xulodol.mygamesonline.org/86808175640.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404308/normal_5ff4d2a934d50.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408170/normal_5feb0fde41391.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447914/normal_6002c6a4a1e9b.pdfIn PDF document text
    • https://cdn.sqhk.co/tewokozogop/kGxjhAY/30280783796.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pozidijapepore.atwebpages.com/dd_5e_magic_weapons_for_rogues.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/xakeravopukovijanebodeva.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_off0000e950.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE950 5380 bytes
SHA-256: 7eeb784f40e024d213ed643b5f8217e8f42b13988aa16e506de71108e9b0f29a
font_01_sfnt_off0000fbb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBB3 10120 bytes
SHA-256: cf0928c09838a5576ec274914e112a66bdc2eb182d2a335a0065848c498d6c91

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