Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2591e51c5613435…

MALICIOUS

PDF

69.8 KB Created: 2021-05-17 00:51:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 34020f5bcb5df75fa586c98eea381306 SHA-1: d77c2c889331cacb371c85f59f591f6442261db6 SHA-256: b2591e51c5613435d06f265a349e8b728efec586630ff30ebad55d727124f2f3
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF with high confidence. The document body, though heavily obfuscated, suggests a lure related to 'Adobe Premiere Pro tutorial', likely intended to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://resalured.ru/strik?utm_term=adobe+premiere+pro+tutorial+reddit
    • https://static.s123-cdn-static.com/uploads/4449185/normal_6000ac56581b4.pdf
    • https://static.s123-cdn-static.com/uploads/4451205/normal_60074f3b93fee.pdf
    • https://cdn-cms.f-static.net/uploads/4424027/normal_602903f4c2616.pdf
    • http://zabolojisag.getenjoyment.net/7755062191.pdf
    • https://static.s123-cdn-static.com/uploads/4403539/normal_5fcf471630b03.pdf
    • https://cdn-cms.f-static.net/uploads/4375200/normal_6064323f1b916.pdf
    • https://static.s123-cdn-static.com/uploads/4368489/normal_5fcb490d5d767.pdf
    • http://politach.com/total_war_shogun_2_download_crackf4ebx.pdf
    • http://fotonagosuslugi-01.space/rowediverimuretulifm2bc.pdf
    • http://tpdreport.com/891726225230yo1t.pdf
    • https://cdn.sqhk.co/letarezetap/yziikgg/lutejufe.pdf
    • https://cdn-cms.f-static.net/uploads/4413013/normal_604e10ffde97e.pdf
    • https://static.s123-cdn-static.com/uploads/4471109/normal_5fcf04b51aff9.pdf
    • https://cdn.sqhk.co/golemejexeno/hjaiCgh/75593946089.pdf
    • http://madawuboso.sportsontheweb.net/dagibivaluwixote.pdf
    • http://kolagozisil.mywebcommunity.org/18864711550.pdf
    • https://cdn-cms.f-static.net/uploads/4468836/normal_60183f89e0337.pdf
    • https://static.s123-cdn-static.com/uploads/4483335/normal_5fcfb1391909d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/remufuzu/gadubata.pdf
    • http://lawiferow.myartsonline.com/81557982833.pdf
    • https://s3.amazonaws.com/kasuwevovog/kenenunexagese.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3b6.bin
b6ab859e4703357168dc2d665efb0821668738b2a374b6c6712056d5e9156375
pdf-font-stream PDF embedded font (sfnt) at offset 0xD3B6 5056 bytes
font_01_sfnt_off0000e4c3.bin
c50c879fffdbfe37ed3aef1a923507bd352194156c78935e48be3e826d8e1e72
pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C3 10816 bytes