Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce648ce13306f010…

MALICIOUS

PDF

65.8 KB Created: 2020-12-16 17:22:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ae16db7cbae0edd78f01e85fb50283b3 SHA-1: 1f822bdc786cae313759605c1e727c5abebc721b SHA-256: ce648ce13306f01004becbebe5bfc3c559378a56272f30b4ccd699fd533aab55
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://trafffi.ru/123?utm_term=how+to+type+alpha+in+word PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4414164/normal_5fd3c1b37011b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446275/normal_5fc9e58c468fa.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/9376b2a3-0d70-40b5-84f4-1f65c23b4028/mujikikitelunetaja.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/tevajaju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0d9564d-9987-4df0-b84c-e13bd90cefb7/82027247380.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6aa85b20-27c3-4e80-aeda-573a1abe83c6/besames.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe3b3a3485235c869097e3/1606302522964/83132793801.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/nabifekuzosadaxupuzusifiv.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/95763574718.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d6c88787e879896ba956/t/5fc1b9829d79364840ce42cf/1606531464904/mississippi_map_turtle_baby.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27e53891-9696-4be9-9d15-f675063e4f43/37043747292.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d495fa3a-3b3b-4a4e-b0af-f2c609e8f960/mudulib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12d83bb1-a25a-4b3e-8474-47873e15c9ec/90648758628.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_off0000c5f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5F7 5024 bytes
SHA-256: 933583af846151843f707d9e8a977270f3ec8b8250ea6be1e493dcc583942fe1
font_01_sfnt_off0000d718.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD718 10484 bytes
SHA-256: febaf3c1403a45752daae58eb5102dd8021e30dc5c82168a978018ec1b2122ac