Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb29bb04dccff68b…

MALICIOUS

PDF

72.9 KB Created: 2021-02-17 03:54:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f69568cc7eaacf01b9fd7cdd33106566 SHA-1: d4eccf56c77a3bc07d80a49920c12404c33ea894 SHA-256: fb29bb04dccff68b2ae04ee792d3a8741c6a1622625c4d4cc7b9cac895b5e5e6
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL and document body suggest a lure related to game hacks, likely leading to a phishing or malware download site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or downloader attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/wix?keyword=critical+ops+hack+apk+obb
    • https://cdn.sqhk.co/birenejar/jbTniht/2600._emu_apk_1._5.pdf
    • http://okrasote.info/jquery_ajax_submit_form_data_exampleabmwt.pdf
    • http://puwaxevajineluk.iblogger.org/peaky_blinders_trilha_sonora.pdf
    • https://gituwelogasof.weebly.com/uploads/1/3/2/8/132814340/turilageziwasuripejo.pdf
    • https://static.s123-cdn-static.com/uploads/4376404/normal_5fee3ead73523.pdf
    • https://cdn.sqhk.co/xarepunekifa/ftohB6I/knife_smash_no_ads.pdf
    • http://zinusefubowewet.22web.org/rojabobexubi.pdf
    • https://cdn-cms.f-static.net/uploads/4427526/normal_6014d73c71a1b.pdf
    • https://vixagukire.weebly.com/uploads/1/3/4/3/134364056/3920411.pdf
    • https://static.s123-cdn-static.com/uploads/4388820/normal_600107611ebf2.pdf
    • https://static.s123-cdn-static.com/uploads/4447878/normal_5fe2a18a1ede3.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://gitogopafo.epizy.com/90951485389.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_off0000e358.bin
3e5e6f7c1515449b4ca3efe6c379a9a108df63f7cd7215f019379aed61f0f134		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE358 5132 bytes
font_01_sfnt_off0000f4bc.bin
ed0a3248233d5d6686f5c53286392e322fcc491e2a41a039c3e51bbdfed39886		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4BC 9980 bytes

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