Malicious PDF — malware analysis report

Static analysis result for SHA-256 24eec4deabf92a05…

MALICIOUS

PDF

69.1 KB Created: 2020-11-17 18:42:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 52f0828dc9055777a38f5d3ccd024e0e SHA-1: 5c132eba59c95a1f677aa25e6769580007c7e10a SHA-256: 24eec4deabf92a05d36b38eb8d0ce9310378f1a5c8087104f9cf1c157e512c21
214 Risk Score

Malware Insights

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

This PDF file contains a critical heuristic firing for a malicious redirector link, directing users to 'traffmen.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including 's3.amazonaws.com/watajive/sony_mdr-zx110nc_manual.pdf'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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://traffmen.ru/strik?utm_term=fallout+4+settler+mod In PDF document text
    • https://cdn-cms.f-static.net/uploads/4367621/normal_5f8750bb15857.pdfIn PDF document text
    • https://tinijaxiri.weebly.com/uploads/1/3/4/4/134440903/8513725.pdfIn PDF document text
    • https://nozitobolilijaz.weebly.com/uploads/1/3/4/4/134473425/vekukisekamirono.pdfIn PDF document text
    • https://ritibamubube.weebly.com/uploads/1/3/1/4/131437410/kobozevejivipojozuri.pdfIn PDF document text
    • https://zakewurez.weebly.com/uploads/1/3/4/4/134471700/a9e2f6fe8568c3e.pdfIn PDF document text
    • https://levivododusot.weebly.com/uploads/1/3/4/3/134307397/metifom.pdfIn PDF document text
    • https://sakuvajavabese.weebly.com/uploads/1/3/1/3/131383602/321949.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/watajive/sony_mdr-zx110nc_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/bejideba/72006846382.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/731d426c-6634-412f-8926-73f5a7de9889/bitesutaketuxawit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e8829c3-4060-4177-b540-37fbc98edadc/47096189349.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/biology_classification_webquest_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/free_letter_e_preschool_worksheets.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_off0000c911.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC911 5012 bytes
SHA-256: 6e441929c1c7c419980aafa3c75a7b24a90d8cd73ff0f17a077f184c2c5ab410
font_01_sfnt_off0000da0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA0A 14780 bytes
SHA-256: c46b59669e0f34c67927f2f8e81981b108939af274d56ffa2d2cbcc123dc12e0

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