Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e45490d515f9283…

MALICIOUS

PDF

68.4 KB Created: 2020-12-14 23:21:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 95c5c2482c33373ee271d9866fde249c SHA-1: 8db98727d2e7d62c8fb4a25f3b07e8ed9d184fe3 SHA-256: 2e45490d515f928342d6d9cc05db0b3c065f51acd08022b561def6a62b67cad5
214 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to redirector infrastructure or link farms, indicating a malicious intent to drive traffic to potentially harmful sites. The ClamAV detection and ML classifier strongly suggest malicious content, specifically identified as phishing or a trojan. While no scripts were directly extracted, the PDF structure and embedded links are indicative of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gettraff.ru/aws?utm_term=sepsis+treatment+guideline+2018 In PDF document text
    • https://zuxobopabure.weebly.com/uploads/1/3/4/3/134344154/sewiwiwali.pdfIn PDF document text
    • https://denonifo.weebly.com/uploads/1/3/4/7/134709080/napebesig.pdfIn PDF document text
    • https://laxuruvu.weebly.com/uploads/1/3/1/4/131482832/xawokogodeduxugowudi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391893/normal_5fa021b43c48f.pdfIn PDF document text
    • https://mitigovoponezix.weebly.com/uploads/1/3/4/3/134375948/xagigokurizolo-telubateg.pdfIn PDF document text
    • https://burivoren.weebly.com/uploads/1/3/4/2/134265934/nazakikagedise.pdfIn PDF document text
    • https://rosanibo.weebly.com/uploads/1/3/4/8/134873488/dotosaburemobi.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/4b5d84a0-a569-41e0-ae1f-5283e24f8a1f/figurative_language_activities_for_middle_school.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/motefemunurebolixixoto.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d785085bf90c0efcc6ad/t/5fc1478164571256546adb2e/1606502274956/pathfinder_witch_spells_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e142d442-9d2d-4d70-8d85-7269b5354744/perevaligawelarusakoxivuz.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce03e7c2968904bcc60eb7/t/5fd6fafa102ca46975f94dc9/1607924475144/sql_server_data_tools_2015_english.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe38631972c46e3c6a3a82/1606301796180/samsung_model_number_rs25j500dsr_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc71659778af068263c8d3c/t/5fcb782a9d29b56e4d029837/1607170091665/jetujutoxijato.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf59743570fb44d1f9e1eb/1606375807800/37708712814.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_off0000ccdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCDC 5904 bytes
SHA-256: 33f928bd27559c2286bf3b26158f43e352b37a6790cce7db3119cb360bbc3d5f
font_01_sfnt_off0000e0d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D3 10692 bytes
SHA-256: 04ff89fbc1981a0f7546123cca6904f888915955905ec03c12ec935a4db28ef6

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