Malicious PDF — malware analysis report

Static analysis result for SHA-256 776458850d7c63c1…

MALICIOUS

PDF

76.0 KB Created: 2020-11-23 03:44:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 0ede4694ca30c6a2080b86b8708300fb SHA-1: 6e33f0dd15895504104a4f55baf001d43baf4f29 SHA-256: 776458850d7c63c1b4efc15f99ada1cae5c8c5cdeebd07b1bc0e655bcfde5654
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 0.9978

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://trafffi.ru/123?utm_term=labeled+red+blood+cell+scan PDF link annotation
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/1a27643b41869.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370541/normal_5f8e72fddf45a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402519/normal_5fb35d8879d2f.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/54e6ae32-1c43-443a-a2ac-f2ae49f574d5/57368131493.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71dbf770-a1ca-404a-9fb8-57368a0cc990/peledobizezuwiwevuwofa.pdfIn PDF document text
    • https://s3.amazonaws.com/giwurode/mizakopotav.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/cerebri_sans_bold_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/worksheet_scientific_notation_part_2_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97683469-3ecc-4a00-8f26-879b34ee3129/spring_bonnie_plush_png.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c80f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC80F 11792 bytes
SHA-256: ded4a2039a46103bfbb8342b263f200c466bdb51ab3c6301a29bc4d2807fee0e
font_01_sfnt_off0000eeb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEB7 5012 bytes
SHA-256: 3947904f54992f1c9190a00952c378f4b1f88069b71a44b8747ac97b9a021c62
font_02_sfnt_off0000ffc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFC8 10460 bytes
SHA-256: 967ecd21d6567579abd489ec1b5c2ea61150e4aae23dea4ca5e6acbce6b22ff7

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