Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b07e66ef7cf0fa1…

MALICIOUS

PDF

70.3 KB Created: 2020-12-22 07:04:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 6f8e81db01f58e60916685ce31496fa7 SHA-1: d06e208281ea20acbd7ad04e7fdc459c89d8cd89 SHA-256: 8b07e66ef7cf0fa1302c0c9079e5e528d9099d52b0a64e5aeaec88e510da2762
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://trafficel.ru/123?utm_term=appearance+vs+reality+macbeth PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368250/normal_5f878ae1757ed.pdfIn PDF document text
    • https://tifevijokob.weebly.com/uploads/1/3/5/3/135351552/7766452.pdfIn PDF document text
    • https://zodemabu.weebly.com/uploads/1/3/4/8/134896511/4306066.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371010/normal_5f9124aeede90.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369491/normal_5f977a93ce722.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418199/normal_5fb3ff08614ff.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/ea730e78-9b2f-4704-b71b-26da76bffab8/98604124367.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b053c9c8-8ff6-4fb2-b610-8284a08ddbdf/tikoxovakidetuvel.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdd52f507af9e0e16f5551b/t/5fddb443a3b92b153c12633d/1608365134624/54224119043.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a48a014-2f6f-4f2d-ae32-e5ca95ac1759/vufezikaregi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4760d43a-112b-445f-a1b5-51828b614e0f/wwe_smackdown_vs_raw_2011_psp_iso_fr.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd4845ff-e1a6-4e55-8199-e6b6b308a949/4286436733.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_off0000d6d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6D4 5464 bytes
SHA-256: edb843a627beb6368139da19c5bc767b74fe252b441979c05d660b58788deb98
font_01_sfnt_off0000e948.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE948 10412 bytes
SHA-256: ac9a099309770b95a2f27a4f8f98c7cd9d079a5bdc085d87aee14a17a03060a3