Malicious PDF — malware analysis report

Static analysis result for SHA-256 ead9046e50ff4eac…

MALICIOUS

PDF

84.9 KB Created: 2021-03-22 22:13:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 53f0aee0d4c51f27bc5d7175b44834be SHA-1: ef0efa68b89e9fa8afc661d541a862ae256b2c61 SHA-256: ead9046e50ff4eacd52f95a5b12e5a92df3d335bb96802c29e5a8ce89fd3f30d
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. An external URI, https://soxebez.ru/wix?keyword=ms+pappas+506, was found embedded within the document, suggesting a phishing or redirection attempt. The document body contains obfuscated text, further supporting the malicious nature of the file.

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://soxebez.ru/wix?keyword=ms+pappas+506 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4394077/normal_604f7472385fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383295/normal_60466721f07b2.pdfIn PDF document text
    • https://cdn.sqhk.co/totimujid/wjdhfXQ/83786797.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485926/normal_600bef7946375.pdfIn PDF document text
    • https://cdn.sqhk.co/vevajewez/hap0hdn/hopper_recipe_minecraft_1._14_4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476010/normal_604ee285f1b4f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419827/normal_5feb7836312f0.pdfIn PDF document text
    • https://cdn.sqhk.co/rorajakura/icjcXyr/67867285547.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474445/normal_60252ee92078e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/mukiwozewizadezavoxawokox.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/1597834744.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de022cee-9510-4a67-9b66-399af5e245bc/12495162795.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca5ba59b-d1be-434a-a7e8-4c8cc45f4487/la_biblia_hablada_mateo_12.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000faa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAA8 5112 bytes
SHA-256: 67659d6b73f67d21acddea7bf88ec4c0c53854c2a726564c1d115c4644fa878a
font_01_sfnt_off00010c2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C2A 11044 bytes
SHA-256: b6de164786be5185109e9c554762b7aea96d81050216a546ea40308313d4d4c2
font_02_sfnt_off0001322c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1322C 16092 bytes
SHA-256: 0e1ac90e4eaf8b1857a29461ee34136313bbbbe88c0ab68b543e42130314d642

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