Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eb42661d00d4347…

MALICIOUS

PDF

81.0 KB Created: 2021-01-19 17:55:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 6c682fd9f88069c64c2ff13860d93524 SHA-1: 01967063f31ba91529ffd8d30598e2a8b72cad24 SHA-256: 7eb42661d00d4347741ab879b621c7773326f015a82c931dcc8418ee2258f552
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely to deliver a secondary payload or phish for credentials. The document body, though heavily obfuscated, contains text related to a fake download lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://leonvi.ru/aws?utm_term=tokopedia+apk+terbaru+2018+pc PDF link annotation
    • https://kulojimafad.weebly.com/uploads/1/3/4/5/134518235/8255500.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369508/normal_5f8d8cd75493d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408596/normal_5fa6a383197c5.pdfIn PDF document text
    • https://site-1179443.mozfiles.com/files/1179443/rukozogevodupuz.pdfIn PDF document text
    • https://cdn.sqhk.co/matelasoguje/iKkDgeJ/45550523651.pdfIn PDF document text
    • https://cdn.sqhk.co/wabajevebe/e8gjBX1/tower_defense_unblocked_hacked.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475863/normal_5fc2da7a56a41.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fazafof.rf.gd/a_clever_craftsman_reading_plus_answers.pdfIn PDF document text
    • http://tuvalej.epizy.com/766776005.pdfIn PDF document text
    • http://kifarir.rf.gd/carousel_image_slider_android_github.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e805.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE805 5528 bytes
SHA-256: ed297af19516f357313ac989a280598eb8f5ed7cc4164c73d4fd090eeda83e43
font_01_sfnt_off0000fade.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFADE 11564 bytes
SHA-256: f77a678169625b32f0469f16fcde6acd0b0a904b549949847c4cf4ef1ce9fa7e
font_02_sfnt_off000121c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121C9 16140 bytes
SHA-256: 5bfda07072dd2e1b0df7f1680a75ba616774ec51e1a09c257f000ba239241e1c

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