Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cd0930f8bec9f95…

MALICIOUS

PDF

105.5 KB Created: 2021-03-17 09:20:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8cfb798edeb169cc96d8739ef8005f95 SHA-1: d4eac62e5a2a26c5da36d6a336745007d266028c SHA-256: 0cd0930f8bec9f954720bec1ac4ca8b7715fd7ceb5aecbd331b9290689e84ce5
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://fokemale.ru/strik?utm_term=vampire+the+masquerade+revised+edition+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4412996/normal_5fec3e39a4abc.pdfIn PDF document text
    • https://cdn.sqhk.co/zopinulepa/aggqhdr/flight_club_chicago_shoes.pdfIn PDF document text
    • http://logivojem.22web.org/vunigutaremuligubidid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475734/normal_5ff1eed96cf71.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453553/normal_600c64a06556e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488101/normal_601b53d123a13.pdfIn PDF document text
    • https://cdn.sqhk.co/wugunifikezu/iNSUoia/nursery_rhymes_list.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476924/normal_603fbda03ca09.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401538/normal_6030614b8c850.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408976/normal_5fd63c988f595.pdfIn PDF document text
    • https://cdn.sqhk.co/naziwixolagu/dqngdja/service_provider_locked_lg_d415.pdfIn PDF document text
    • http://razidazimako.iblogger.org/84513220407.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417523/normal_604ee6ff3f40d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426280/normal_5fc97b5f05a72.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446045/normal_5fc72a99d9753.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366398/normal_5ffd5b4ec64ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490128/normal_6011dc0c41155.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/wotodedaruzuk/rijukekelarolanotopumepa.pdfIn PDF document text
    • http://mubapumasas.epizy.com/xiweso.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/rurawatabatitetudirab.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/anganwadi_vacancy_form_in_delhi.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_off00015eb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15EB6 5400 bytes
SHA-256: abd7e4b470c018488cda78bb7fc3a05977f0c2bcbfd63e982de466666dd5fe2f
font_01_sfnt_off000170f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x170F5 11724 bytes
SHA-256: dc48b4c19161157da3a95c52577024b86fff29d2790f61c9a1f349bcd19c86e2