Malicious PDF — malware analysis report

Static analysis result for SHA-256 04b33c5562e2bade…

MALICIOUS

PDF

75.6 KB Created: 2020-11-27 15:54:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d5912e48899c5fd756c95445dc21f05 SHA-1: 17a7772913697d4d6355e1a5684c66a8dd92911c SHA-256: 04b33c5562e2bade4f65ebc16a29fd3951e8f6b4e73f67c86bb00006dc50dc6b
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that leads to a suspicious domain, likely intended to host a malicious payload or phishing page. The document body, though partially corrupted, suggests a product listing context, which is a common lure for phishing attacks.

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://traffset.ru/strik?utm_term=espingarda+de+chumbinho
    • https://cdn-cms.f-static.net/uploads/4412568/normal_5fa1a046558c1.pdf
    • https://cdn-cms.f-static.net/uploads/4369907/normal_5f89f7749437f.pdf
    • https://cdn-cms.f-static.net/uploads/4446388/normal_5fad2a941350b.pdf
    • https://cdn-cms.f-static.net/uploads/4387219/normal_5fb573704fd7b.pdf
    • https://cdn-cms.f-static.net/uploads/4403960/normal_5f9e56b10864c.pdf
    • https://cdn-cms.f-static.net/uploads/4453906/normal_5fbb986d197b6.pdf
    • https://cdn-cms.f-static.net/uploads/4386336/normal_5f8e9f9197a7e.pdf
    • https://cdn-cms.f-static.net/uploads/4368958/normal_5f89a00877ac7.pdf
    • https://cdn-cms.f-static.net/uploads/4369162/normal_5f8874a82832a.pdf
    • https://cdn-cms.f-static.net/uploads/4367271/normal_5f8f6aa41fc42.pdf
    • https://cdn-cms.f-static.net/uploads/4374366/normal_5f8b5ba3651d4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/0f6c8713-ab8f-4c8a-86f3-587cff88fbb6/lafozovurogafedij.pdf
    • https://s3.amazonaws.com/mozirolinitaje/78697162839.pdf
    • https://s3.amazonaws.com/vitelitubovuluj/inquiry_definition_science_sentence.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea42.bin
b88a67f6ba604b9bca3c39edf698eef541c32e1114de3da1b76b43846586b45a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA42 5552 bytes
font_01_sfnt_off0000fcf3.bin
929aa3314c6861d528f075fa30ac6b1d39b61fe816808941a8db6cd0af9f1d1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFCF3 10816 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.