Malicious PDF — malware analysis report

Static analysis result for SHA-256 f094899a5599f04b…

MALICIOUS

PDF

66.8 KB Created: 2020-11-24 13:52:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 2011c7107fb2ced173bf5dc70f39107d SHA-1: c22e413a19639b791c48124825caf711852fc2b2 SHA-256: f094899a5599f04b338c3d54beda3e8791c13ed0af65b7f640bc5f0f89822b2f
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure, likely intended to trick users into visiting a malicious site.

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=personal+experience+story+writing PDF link annotation
    • https://junoxavod.weebly.com/uploads/1/3/1/3/131384771/15893feb1defe.pdfIn PDF document text
    • https://didonomomosizol.weebly.com/uploads/1/3/4/8/134892758/lovigufidalo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369164/normal_5f87b75448a56.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389352/normal_5f9731c8d41d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486981/normal_5fb5802f622d6.pdfIn PDF document text
    • https://wokugosag.weebly.com/uploads/1/3/4/3/134339956/7929162.pdfIn PDF document text
    • https://subonotewus.weebly.com/uploads/1/3/4/3/134347286/lumevotazibonupis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375071/normal_5f9ce3eba2c7b.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/ae985110-d38a-4cad-8e9f-c76f6a2ed727/90356864090.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ccac7d15-550b-4aa8-a536-f0c4216c6d1f/telament_gotas_de_clico_para_nios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/936ee407-80f4-45b2-84b3-1d10f029df60/68750060697.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_off0000ca19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA19 5364 bytes
SHA-256: b3f5d4dd8980da3f0c170007a9ff42ba180c61114376dc6b4e4c4fef259842b1
font_01_sfnt_off0000dc88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC88 9980 bytes
SHA-256: f32470a49254cbf1b88728b2c26525b90d893f5fc43a5e72ca78089f774a4344