Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdfa5f40d74dbf0b…

MALICIOUS

PDF

72.6 KB Created: 2021-02-24 09:16:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 21b59237f8f5f2ae3a36e1958c6de450 SHA-1: a77790e7c0bcd029c1ca6184ab1991f1d8d9a354 SHA-256: cdfa5f40d74dbf0b4600b795ad495fddbe74f5ab06b7cc14dee0c0b5f90e6b54
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search result, likely intended to trick the user into visiting a malicious site. ClamAV detection and ML classification strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI suggest a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wb?keyword=communist%20manifesto%20pdf%20german PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4424009/normal_6004038d112da.pdfIn PDF document text
    • http://sotaredojowiba.iblogger.org/winchester_10_gun_safe_price.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410004/normal_602c9073078a9.pdfIn PDF document text
    • http://zonipig.iblogger.org/apple_watch_series_3_android_compatibility.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402720/normal_6031acbde5190.pdfIn PDF document text
    • http://xaxifibipebux.iblogger.org/78083988085.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409420/normal_5ffa227f02af4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388820/normal_5ff3f67f62d0d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489251/normal_60262e21cedaf.pdfIn PDF document text
    • http://jekebes.iblogger.org/lisetogilo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474992/normal_600d186bbef5f.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/gozilum/bernette_h70_sewing_machine_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nonabafat/43740539315.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/wasuxofiwokikisijozi.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/have_a_brothers_songs_masstamilan.pdfIn PDF document text
    • http://nodimetonakijeb.epizy.com/tukakagavusuginebenekojaj.pdfIn PDF document text
    • http://bogasupi.rf.gd/9277439849.pdfIn PDF document text
    • http://ziboporo.epizy.com/lights_out_podcast_youtube.pdfIn PDF document text
    • http://kujujigufa.epizy.com/sample_cover_letter_full_block_format.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/is_lg_better_than_samsung_washer_and_dryer.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_off0000e136.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE136 5232 bytes
SHA-256: 9b543ea5f7852b35a9e97db37ca9b4dbd8970e003d19af026f36eeac246a5d14
font_01_sfnt_off0000f2e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E9 10076 bytes
SHA-256: a002f0839b0a8786b2985852503a9131b1689156e8367b190e024e645f1cf52c

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