Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e34f95533bc0a4f…

MALICIOUS

PDF

64.9 KB Created: 2020-11-24 21:11:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: e4876bbe188664f3694c6f1573af1bb1 SHA-1: b2b8d5ff7b478e81fc9ceb51ad30183d9d12b0c2 SHA-256: 4e34f95533bc0a4feebdbf9da569d8ca9b426a4b7ff5a510b487d2d8d1ad0c9a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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=ge+adora+gas+range+griddle PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366956/normal_5f9dae5766096.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385617/normal_5f8c79c99716a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404103/normal_5f9b957bf0028.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412909/normal_5fa18e80cbaf3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410714/normal_5fad65bdb9845.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367300/normal_5f87597f3dac0.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/d32e3820-810a-4bb6-8db6-a6f47c787971/45833693123.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bda45084-7376-4528-84f3-1bf635e80c13/34686161642.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/lte_capacity_planning.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a45bf30a-85a6-4ef6-acdb-4a0cfe40baab/xekibuwugana.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/773c2556-2a7d-45fb-a8ea-d7ada8d6f582/61872834848.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43fc246c-9883-4bb6-a672-189e5d91cc33/xabexulirozogesekakofija.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f1d9c62-4cd1-4163-b612-a3f40affcd10/6640465116.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_off0000c360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC360 5024 bytes
SHA-256: b29569887cb29a97bd97f4664c93c7a669797eeb7555f2ca78ff85b607a74624
font_01_sfnt_off0000d482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD482 10092 bytes
SHA-256: 3cd1c731db9f278d502d3455e5b14f18e2b3ac29149aa8fe0c46c0e2904f5c30

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