Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b6209cc73276d04…

MALICIOUS

PDF

70.7 KB Created: 2020-11-20 11:41:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: ce305a83abe89be8ef9b5326cb18ae90 SHA-1: d98389e580ac7ae1f185f65eb2ff8bc3889b426e SHA-256: 6b6209cc73276d047143a4ba5af7a6d8fc67bba3d422513010909ca74eb60559
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 0.9997

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://traffset.ru/strik?utm_term=dog+grooming+cuts+styles PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416675/normal_5fb3017b8d1d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366958/normal_5f8ef5205124b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418972/normal_5f9e762f5f202.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482230/normal_5fad90141e8ae.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/98257ffd-18b0-4dff-ae07-16dd78868288/zudonaxuveresegosuwa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed29796d-8b2b-4a10-9571-28953cbdad8a/zedikalorazuritakut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9581dc26-815a-471c-b09c-e06e9bd51bc4/guvurevo.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/91189297268.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/lazudawawimevoxez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96a7f806-dd42-4428-8566-9167dab40250/70737577007.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8d6b088-3ae5-4b7d-906e-6df35f289eea/liderazgo_en_las_organizaciones_mapa_conceptual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/788e3f5a-9ac7-4cc6-84dc-9e35a5020fb9/possessive_pronoun_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xedobox/valu_guide_catalog.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_off0000d95f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD95F 5008 bytes
SHA-256: 08aa8292ddc0b6d9d744c2f9d7e0be4978014439f5badcbd27e40332701e4861
font_01_sfnt_off0000ea67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA67 10388 bytes
SHA-256: fddcc039aa0277df8d6e19ea2e8b81fce146bf4080653158b704d989689f08b3