Malicious PDF — malware analysis report

Static analysis result for SHA-256 8942ad6927ffc440…

MALICIOUS

PDF

67.9 KB Created: 2020-11-14 20:05:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7f021abc302379061a40ed4205414af9 SHA-1: 17b3bbdedb72eb4131d9f86c6cb1c545e84a4440 SHA-256: 8942ad6927ffc4400aa1ab0704c5d3d90b139e36ff85e1b7372526b9d0fa1e6b
104 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 presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://traffnew.ru/aws?utm_term=ipcc+may+2019+exam+date+sheet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4422622/normal_5f98ce2723c8f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406777/normal_5f9675cc28591.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422377/normal_5fa687d42e4ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370989/normal_5f89b247f39fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383451/normal_5f8d28b6bb2da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369919/normal_5fa5d6b2abc88.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470552/normal_5fad3a21782fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369802/normal_5f8a7cc171355.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/e455baa1-7893-4f30-9630-b65daab14165/zekogubotalodikujabimitel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f7769db-3e62-4872-bee8-06ae0ffdd1c8/pukoxuvoverevaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6187a6d-d5d7-4562-96e1-03121444c8b9/lodubigazalugejotizitit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10748227-0607-4220-ae52-07136daf38e9/46368779580.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_off0000caa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAA5 5772 bytes
SHA-256: 80be3197858c2916595db60055659e754c6d54523e8fb84bb323404283ebfe7b
font_01_sfnt_off0000de38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE38 10860 bytes
SHA-256: 7431d0f0045bc5e060d79188c7a454a1ef04a4d64ea9109f3622ec7d69488bd7