Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d1182437ac4d076…

MALICIOUS

PDF

75.6 KB Created: 2020-12-28 12:34:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 91e082967f0a9f42f172247667f7f72f SHA-1: cd43e8af349b06a90b38e10a2de4130ada693243 SHA-256: 2d1182437ac4d07663163e6c816659cd47f91c95e5dc91a4ba6406737f1d96a9
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 0.9998

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://traffnew.ru/strik?utm_term=dark+sword+ds3+stats PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4490752/normal_5fd65a37d0051.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413235/normal_5f94dbb70b96e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408997/normal_5fe73e0cd704f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446782/normal_5fce73545888b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465274/normal_5fa9da4e82b15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446649/normal_5fad298aaba11.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416656/normal_5f9a17d0ba70c.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/tibanepoxilibud/not_for_profit_business_plan_template.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/dividends_income_statement_balance_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/85338448272.pdfIn PDF document text
    • https://s3.amazonaws.com/xesigeze/sentinel_event_reporting.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/cape_town_water_crisis.pdfIn PDF document text
    • https://s3.amazonaws.com/gogoxowiniza/shuffle_people_say_yes.pdfIn PDF document text
    • https://s3.amazonaws.com/nefunupu/gadgil_report_in_malayalam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40c8ba21-4e57-4b97-ab13-2093024ae7dd/my_cloud_home_duo_review_2020.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_off0000ebc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBC0 5104 bytes
SHA-256: 2c7f7f7ba950380b238ece00a10eb1c8fa05d927056ed56da56729680b795785
font_01_sfnt_off0000fd4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD4D 10552 bytes
SHA-256: 426e495f5f5ca24ca4993e33b499dfe58aaa58e66562f0198b8ebd96fad38258