Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ad61a072d791dd9…

MALICIOUS

PDF

79.1 KB Created: 2021-03-12 12:23:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7aa078d608bc49cec2394d88b802af98 SHA-1: 12de5fb660d4caf45c8ac0fa959f0db46e0ddb9d SHA-256: 2ad61a072d791dd98d53fd6a360e8ea8dc08b514b5feaea0e293fb928ca86a0d
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL pointing to a domain that appears to be part of a phishing campaign, specifically a fake award lure. ClamAV detection and ML classification strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect users to malicious content, likely a phishing page or a further payload.

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://midufefew.ru/award?keyword=agile+software+engineering+pdf
    • http://migriruy.ru/36966607031mjtd6.pdf
    • http://prizinsta24.online/rituwizimenujejazovuteni589qy.pdf
    • http://profit-makers.club/60437631980z7ky3.pdf
    • http://shopyou.online/how_to_reset_check_engine_light_2011_nissan_sentrapcq7g.pdf
    • http://xoziduso.mypressonline.com/colt_ar15_pistol_lower.pdf
    • http://mujudesuxiropa.sportsontheweb.net/71671049342.pdf
    • http://gojavodevagajuw.mygamesonline.org/65030661835.pdf
    • http://pet-guru.shop/wrox_professional_java_for_web_applications3p2qg.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://vubedarav.epizy.com/rukogoropofajosadeniveg.pdf
    • http://vunonam.atwebpages.com/79299987840.pdf
    • https://1923692e-f727-4f58-80a8-3583160180e3.filesusr.com/ugd/c4ccc4_8311a1dc002a4c53b0f43d6358aa0771.pdf?index=true
    • https://s3.amazonaws.com/midizaxopazeji/kopawekiw.pdf
    • https://s3.amazonaws.com/lezerawe/44050052921.pdf
    • http://vavubal.epizy.com/najewubisevavagukikiwijo.pdf
    • http://rowomasogig.epizy.com/ccitt_compression.pdf
    • http://visisobaropa.epizy.com/35193636396.pdf
    • http://timojakizufijad.rf.gd/98648718714.pdf
    • https://s3.amazonaws.com/senodiw/31055984544.pdf
    • https://s3.amazonaws.com/jofunozuzof/clinical_trial_protocol_template.pdf
    • https://be1d055c-b83b-422e-9e68-1bf13cef350c.filesusr.com/ugd/5b1e3c_0705b02c372c46298e62a7be9c433361.pdf?index=true
    • https://s3.amazonaws.com/xomepixo/brussels_midi_platform_map.pdf
    • https://486bfeb6-87d8-40a3-812f-3449909c9139.filesusr.com/ugd/81b904_205bf69dd56f4e07937c10645f440080.pdf?index=true
    • 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_off0000fa37.bin
937edb295d62023d0f4fdde4fd128433c65469d8adef6bdcad810b1a4ca54685		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA37 5288 bytes
font_01_sfnt_off00010c60.bin
0e77662a2819c2ec9384e16a6a520381ace4f79666195fa90d57b2f6f1f7c79e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C60 10196 bytes

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