Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a8ed5ab346ce508…

MALICIOUS

PDF

68.8 KB Created: 2020-12-20 01:37:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a5a9039a93d11a94e2f75c7ce90e8123 SHA-1: 1ecaaba024f2ee0b99adb9f2266ffbda0d374a96 SHA-256: 5a8ed5ab346ce508e9b397166760996744cb277c5118aeb82a661f9686368efd
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://traffset.ru/strik?utm_term=death+row+records+chain+spinner PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387939/normal_5fb87cbcd5e85.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415531/normal_5f9e66221bd2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419637/normal_5fbbe367a37f7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378157/normal_5fc512b59e8ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372087/normal_5fbe9a8ded47d.pdfIn PDF document text
    • https://metozalolak.weebly.com/uploads/1/3/4/6/134610510/7741262.pdfIn PDF document text
    • https://ponitunol.weebly.com/uploads/1/3/4/7/134747778/rumudefone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378406/normal_5f920beb2844a.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/watajive/free_lds_sheet_music_violin_solo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc52e78bda9c57a97da122f/t/5fcd51f22fa8bc6bcdf93eaf/1607291378684/xigozime.pdfIn PDF document text
    • https://s3.amazonaws.com/dofufiri/24899794488.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7c167b4-b0b5-4b3c-bb9c-e1273e22244b/musical_definition_of_accent.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5618dd26ff1194f91dbd2/t/5fd653a8226e9048fab4980d/1607881640243/jelovetowa.pdfIn PDF document text
    • https://s3.amazonaws.com/votawawo/99578215057.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_off0000b797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB797 5220 bytes
SHA-256: 7c779c14577295e1936cc6b26d3109ae6ab72062108d024534d2eec065fa2f94
font_01_sfnt_off0000c969.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC969 11784 bytes
SHA-256: dbfca0aa7aa27283047fd9db978021bda6d491d3f3f7f26d72a179e248160e92
font_02_sfnt_off0000f0e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E5 16060 bytes
SHA-256: 10572f3a10760712fbb8352e098d229fd21f48763f52fb6fd9385479015ceb58

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