Malicious PDF — malware analysis report

Static analysis result for SHA-256 30574ffe5f8c5b0c…

MALICIOUS

PDF

72.0 KB Created: 2021-02-11 14:55:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 67fe5e8e86bbbcc491cc25bd39be7b54 SHA-1: 8003bfa806c0961c8b4b259fbb485ef3c2a296b7 SHA-256: 30574ffe5f8c5b0cbfb3922e9890bb6237a985f23e3e8eeff3d172042ab03e8d
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URL leading to 'baarspo.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, contains references that suggest a lure related to online games, aligning with spearphishing tactics.

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://baarspo.ru/wix?keyword=trollface+quest+2+unblocked+games+77 PDF link annotation
    • http://datujizid.iblogger.org/bunuwugu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475219/normal_6018326da1f93.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421627/normal_601656854d8db.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409814/normal_6006719343b04.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389816/normal_5fcc7bc73d99d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372682/normal_602050bd76bcd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381971/normal_5ffb59c1abad0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407316/normal_6004b2cab34e0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366010/normal_5fe2541b21172.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://binasizula.rf.gd/vikamef.pdfIn PDF document text
    • http://fotiworoz.epizy.com/nabamifumu.pdfIn PDF document text
    • http://pamiwumewamem.epizy.com/61005952215.pdfIn PDF document text
    • http://fisejotigu.epizy.com/cardo_font_free.pdfIn PDF document text
    • http://rewifavad.epizy.com/zexida.pdfIn PDF document text
    • http://beninoduvewer.epizy.com/85564185730.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF01 5668 bytes
SHA-256: fc7f9147234b67f98c4052044b2fa8f715570413f9a8cb71d5f9998074a619d4
font_01_sfnt_off0000e231.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE231 10216 bytes
SHA-256: 3f600f3099eabee6b17cba5cc7281832f34cebf1b5426b7aa83eeaf2bec162f3
font_02_sfnt_off000104da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104DA 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3