Malicious PDF — malware analysis report

Static analysis result for SHA-256 056df2bf23400ac8…

MALICIOUS

PDF

68.2 KB Created: 2021-02-15 19:43:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 9b5b65734b0ef0e95b262d668dba1a34 SHA-1: 145e19e386bb56c437f9240fd909c0c4cb68395f SHA-256: 056df2bf23400ac802da0c429cdf18134e832a1f991a6aac1d4a101e85e3ddc5
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an external URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware-hosting site. The document body, though heavily obfuscated, suggests a lure related to 'Gta 5 manual save', aiming to trick users into clicking the embedded link.

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://leonvi.ru/wix?keyword=gta+5+manual+save PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4496602/normal_5ff2af199d69e.pdfIn PDF document text
    • http://wbigs.space/carteirinha_de_vacinao_pet3r6yk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376354/normal_6004987480d7a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450045/normal_5fe4888e16967.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446636/normal_602043b210867.pdfIn PDF document text
    • http://opencabinets.xyz/screen_video_recorder_for_pck8d2v.pdfIn PDF document text
    • http://obzorov.site/carbon_footprint_analysis_in_plastics_manufacturingsa2xf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482018/normal_6002210a66bbf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426090/normal_6002bbdcbf232.pdfIn PDF document text
    • https://cdn.sqhk.co/jodariwem/iiCAgfn/texas_caregivers_for_compromise.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458413/normal_602768b562756.pdfIn PDF document text
    • http://shimano-stradic.ru/xiboxazepanawiwuzivepu06p2p.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467318/normal_5ffd4ce2248e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487409/normal_601cea7d82f3d.pdfIn PDF document text
    • https://cdn.sqhk.co/govizanorev/frjczha/slots_for_real_money_canada.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/legesiliv/51000012890.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/web_template_psd_vector_free.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d05d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD05D 4952 bytes
SHA-256: 99575a0d49e1b477479b59bd2b48ce4abe7367ceb4584587bc4d6e01e9e9df5e
font_01_sfnt_off0000e133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE133 10284 bytes
SHA-256: 880bdaf909ab43ed719be5f303c2e0540bac476490e6f2f74b58b230606bf433

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