Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dde806b3ae88706…

MALICIOUS

PDF

66.2 KB Created: 2020-12-05 07:41:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 510139bfbc439daa328da09776d3206b SHA-1: 29509d89a00d3cb2019d996b902f053031a1f844 SHA-256: 7dde806b3ae887062f08d5af454c48f7ee55eefc8d66c9c39a3f57f6cf1b1ae3
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 0.9998

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
  • 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://cctraff.ru/strik?utm_term=chapter+29+civil+rights+worksheet+answers In PDF document text
    • https://cdn-cms.f-static.net/uploads/4371003/normal_5f8952bf1297f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373755/normal_5fb5b4fdcd2b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471959/normal_5fa79f3dbf707.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394061/normal_5f9100ec63130.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/bd42584e-b31b-45a0-891b-e5c4f865063a/91722913314.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/057d840e-ea11-4cd2-92b1-3b9652c7abdd/84379549164.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc18b3cc89e1c4b8fc2ff4a/t/5fc2e5573c02f22b9d6cebbb/1606608217170/hindu_childbirth_rituals.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc392da27a199023ac63631/t/5fc52aa33f75b166437a32f3/1606757028123/13_days_after_hacked_unblocked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26ab5d57-87f2-4409-9648-a4d9401238eb/88128543186.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5c91011f6a41984a72723/t/5fcaf405393ce473562aaccd/1607136261619/713558969.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e318e7b2-17c6-4408-9b6c-60773007bb7f/jogiliburazofusidu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1d0d6bd14ff0dd2a325bf/t/5fcae4c1551bdc47e79dad55/1607132353354/sogeloniwa.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf67e1af5bf52c326c0e5/1606219394563/51065370550.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

Related samples 2

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c6de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6DE 5604 bytes
SHA-256: ab6c2178e75a3baf6bada267aad3fd2987ac67d1fb39a69fb637106621e4a4a6
font_01_sfnt_off0000d9f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9F9 9964 bytes
SHA-256: 6b96a01972e963a2a4531c011284e5067e95b8b8f268addeee6b006ed296a58b

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