Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd9e9c442f14d498…

MALICIOUS

PDF

72.0 KB Created: 2020-12-08 12:18:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 54e00d9d6d3c05d62d8fa400749aeaab SHA-1: bab728fd451520c27b99cb71f7d0b59675130ab6 SHA-256: cd9e9c442f14d49871b03369f93725e92fe80c94084a2f8583dff52524de5326
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-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://cctraff.ru/strik?utm_term=the+trail+of+tears+wordly+wise+answers In PDF document text
    • https://jejonogukoji.weebly.com/uploads/1/3/4/8/134864124/5676539.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367656/normal_5fab8f5276f15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384471/normal_5fab75f3b8bb4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407989/normal_5f9276ffe3dc5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392658/normal_5fb8de98b8ff1.pdfIn PDF document text
    • https://disadoxamegipu.weebly.com/uploads/1/3/4/5/134527150/2763309.pdfIn PDF document text
    • https://korodaziso.weebly.com/uploads/1/3/0/7/130740443/c540a9d0c.pdfIn PDF document text
    • https://xesapidad.weebly.com/uploads/1/3/4/3/134346602/lavefuj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466680/normal_5fb32d2f86ed0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0e464ab79f442f229936f/t/5fc14c45f3de5e49b594657f/1606503494505/84212636185.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc27efbcd1e280355de4c09/t/5fcd3184920f47545b9e538e/1607283077774/grand_prix_story_best_driver.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc77b14579eee3ae06e022d/t/5fc9065d765705563cd27b73/1607009889609/puvizikebujililepupaj.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0696cdf132613bbbb46ad/t/5fc1f5d7bc819f1cf41e947c/1606546904076/wow_cataclysm_mining_leveling_guide_1-525.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf58dbbc819f1cf4cfb72e/1606375644887/partes_de_un_computador_en_ingles.pdfIn PDF document text
    • https://s3.amazonaws.com/wovisak/biology_karyotyping_activity_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/philosophy_of_discipline_in_education.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d67b8ef7301f8b106140/t/5fc3b2a1f81c9a2a0c12fe0b/1606660774481/monster_high_ghoulia_costume.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_off0000dd1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD1D 5136 bytes
SHA-256: dc5905fef095e3eb558a135c9958a8d90f9186b7b2295e5024f790e77d1ae3ea
font_01_sfnt_off0000eea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEA5 10772 bytes
SHA-256: c7a56a398f91b2b5a799babed3fc29ecb42c968156649d5ad09d576c3cee5734

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