Malicious PDF — malware analysis report

Static analysis result for SHA-256 58433a4ff96cc2e5…

MALICIOUS

PDF

73.7 KB Created: 2020-12-31 14:50:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: fedd6e4c1f12a1ff3cced1cd77329ca1 SHA-1: e741400645b43b923fd3c9b95b9d4991f78aab0e SHA-256: 58433a4ff96cc2e5398eaddab0dc48c27e2b9dceab81f869dfaa43e1ad9d5df8
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a heuristic indicating an external URI pointing to a suspicious domain, which is also listed among the extracted URLs. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/strik?utm_term=editing+pdf+online+adobe PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4456667/normal_5fdc565204c12.pdfIn PDF document text
    • https://cdn.sqhk.co/mugapowejog/jghiihD/12478069473.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405895/normal_5f9dbfab2283c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387807/normal_5fed6ea3501b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392871/normal_5f916f4b6e0f6.pdfIn PDF document text
    • https://cdn.sqhk.co/lulaxujik/NgdVji4/grove_ok_golf_carts.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413867/normal_5f98be8febd70.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvexudid/Agj5hcL/japamudavibufajitigos.pdfIn PDF document text
    • https://cdn.sqhk.co/lazujanaziri/HKhgBhe/barinujoridizula.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450355/normal_5fdfb075ec6fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384650/normal_5f9c3c66c2cfa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456376/normal_5fbd1b0abc992.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378410/normal_5fa553ec686ec.pdfIn PDF document text
    • https://cdn.sqhk.co/fabukujeb/eKKiijb/movistar_cycling_documentary.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/37965232-4c25-49b5-830d-f6818768c3d2/pba_women_s_bowling_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/154f5f35-de59-437e-99f4-d9aba61a0eaa/92125483668.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_off0000e4e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4E2 5032 bytes
SHA-256: adb4fba9ac636cd0cd11e6c1b533f0cff5f95ce6d07481a95b557971bf4af578
font_01_sfnt_off0000f61d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF61D 10428 bytes
SHA-256: 69728ea9c00ffa107a4804133b6d8472f6434f30828f9d0fd12714006b8bf716

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