Malicious PDF — malware analysis report

Static analysis result for SHA-256 586361e839fc5620…

MALICIOUS

PDF

72.0 KB Created: 2021-03-01 19:40:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 32e265214d121a64ceba840a7d6e26c3 SHA-1: aeb480fdd41bc362c383832ec0b0a795a17ddb86 SHA-256: 586361e839fc5620a7bc804d0926c36a05f78329a5df5347d9100e832b7ac4c1
96 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is malicious and a phishing attempt. It embeds a URL that appears to be a lure, disguised as information about a remote start system. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to a phishing site or download further malware.

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://kuzutuzo.ru/strik?utm_term=avital+4103lx+remote+start+system+with+two+4-button+remote PDF link annotation
    • http://zugemenelil.medianewsonline.com/mens_air_force_1_low_white_size_9.5.pdfIn PDF document text
    • http://mumolazesinidix.getenjoyment.net/wupogonun.pdfIn PDF document text
    • https://cdn.sqhk.co/wagejino/ftJ5xxh/bollywood_instrumental_ringtone_download_pagalworld._com.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457570/normal_5fef6bb61e3e1.pdfIn PDF document text
    • https://cdn.sqhk.co/loziromegon/ihvNjf8/funny_urdu_stickers_for_wafa.pdfIn PDF document text
    • https://cdn.sqhk.co/kixagixupo/Pchipmq/jekemigonu.pdfIn PDF document text
    • https://cdn.sqhk.co/vovomafejuwa/LijHEhd/speed_racing_pro_2_game_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409258/normal_5fee4eeb788bc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413867/normal_5fe5efbd3acca.pdfIn PDF document text
    • https://cdn.sqhk.co/marezotije/ShggeJX/71452491452.pdfIn PDF document text
    • https://cdn.sqhk.co/jidulopavoji/gLhgaI3/64884424349.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwipabobatu/lvxZgfG/did_you_know_facts.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416128/normal_5fec9937d6493.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390383/normal_600457f3bfc96.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuperik/ieoZ1kF/assistir_furia_de_titas_1_filme_completo_dublado.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446272/normal_5fcbdb7116f1f.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://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_off0000cd36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD36 5736 bytes
SHA-256: 861f4fe64e9d492e27c390da81688474b28a0b6d0f7c7fd1308c2a052abffed8
font_01_sfnt_off0000e0bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0BB 10480 bytes
SHA-256: 128d70b9451b1d2b797d00b07fc395340f0121998789feb3e4b76e3a0a582a47
font_02_sfnt_off00010451.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10451 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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