Malicious PDF — malware analysis report

Static analysis result for SHA-256 13cc70667397ca69…

MALICIOUS

PDF

75.5 KB Created: 2021-04-07 23:20:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7584aec1bc8a6d5578f5f1b323546a4f SHA-1: 528f5a45ff4a144d7d74ce1c593a740feda71646 SHA-256: 13cc70667397ca692865ba0c88f1bc658b2faa41bd6c3bb88b2f502fa928d35b
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://pelibifir.ru/123?utm_term=demo+warlock+guide+icy+veins PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4455405/normal_60497cb7bce0f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381971/normal_60027e1a8bb7a.pdfIn PDF document text
    • https://cdn.sqhk.co/mudaxomemut/Sidchek/56515108865.pdfIn PDF document text
    • https://cdn.sqhk.co/dagozuwemep/ijjLhgd/fidefafanem.pdfIn PDF document text
    • https://cdn.sqhk.co/rizuwevize/tigcjfF/nuteretuxemopoviwugutalu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386594/normal_5fd96be109498.pdfIn PDF document text
    • https://cdn.sqhk.co/wozepefiga/4jcigmZ/17630670685.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425921/normal_604dc6fe3bcb9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455916/normal_60598fb72d2ea.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab0c0058-8461-42ca-876c-ee2f6836c0d9/fonijisafulupib.pdfIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/zokofetopef.pdfIn PDF document text
    • https://s3.amazonaws.com/potamotaz/hyundai_sonata_service_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/ableton_suite_8.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e6938bb-1ec0-480b-98cd-40d04b881d94/nozokaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b72cb4c8-0c29-42bf-a174-acf125d9b940/mtd_20_ton_log_splitter.pdfIn PDF document text
    • https://s3.amazonaws.com/wisuw/bluestacks_alpha_2_mac.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_off0000eab1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB1 5576 bytes
SHA-256: 8b8b45548879a57436a0b5608a3a3cbdffc5772f4dc9a0b0fed575b8afff6fd5
font_01_sfnt_off0000fdbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDBD 10404 bytes
SHA-256: b9cf647b3e40ef4ade7368bc60c2e78228b36382c967b2b956e7dce58ea62f45