Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a441dff02490a3b…

MALICIOUS

PDF

75.7 KB Created: 2020-12-01 00:23:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 8874bc7f532e336c06556534f01e376a SHA-1: de70c2fdae6562a7597b0a54b57f9afa8b58b0ac SHA-256: 3a441dff02490a3b144b91d9e66b0c9e4e3fe07abd4224c36834c29b1ee926a3
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffmen.ru/123?utm_term=rainfall+and+bird+beaks+gizmo+answers+quizlet In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static1.squarespace.com/static/5fbffe61bf71053ccb0b2b06/t/5fc1380dfa04221c714bffdd/1606498319224/nodixamek.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1576327a199023ab86c6c/t/5fc46d02f8cdb769c6717c2e/1606708482946/reddit_movies_to_watch_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/wopuxofesoromilene.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc117c3a3bf4b14abaa53c7/t/5fc50e1861e25426e1d778bb/1606749723581/wonarurakajutuvizavo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcfef6d334513fae4266d7/1606221559300/rotten_tomatoes_adventures_of_aladdin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f20773d-d7b7-455f-a407-8de7240c1d9d/everybody_loves_a_clown_song_wiki.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e727ea4a794d5645064f/t/5fc142793570fb44d130d900/1606500985433/99323224762.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0078111f6a4198480da42/t/5fc17e59145a8629dce93c25/1606516313761/ngpf_online_bank_simulation_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc15df1e9fc3622d5255c20/t/5fc2cfc83c6ccf69f3bbb4cd/1606602697555/aa_sex_inventory_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7607861f-8999-4fa5-aa39-aa8e2e46bd6c/panobevopuveve.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc11b4016f6d44b07c000b4/t/5fc4433d5147b14804ba6091/1606697797851/one_sample_t-test_excel.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0672f60f2895dc1e54ab2/t/5fc1acb6fa04221c715e430c/1606528187267/watud.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c1ca2bbd74065805c248/t/5fc1c0969d79364840cf0042/1606533271223/kozalodurazi.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://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cbf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBF2 5588 bytes
SHA-256: 69f809978469f1b6408f7d11fc930b478ee6edba3259fb0339407a6ada6ffde6
font_01_sfnt_off0000dee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE6 5908 bytes
SHA-256: 39b5f131eade3e982c3ee2d343f4817981ffd526c811f2ea21c7e439f6adfa0d
font_02_sfnt_off0000edec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDEC 11088 bytes
SHA-256: ef79ec7913d79a37dfbf1dcd1932bcb418a55004b084d579d120788dfeedbf45
font_03_sfnt_off00011342.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11342 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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