Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e902539e03998c3…

MALICIOUS

PDF

214.4 KB Created: 2021-03-22 05:15:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 3ade2519ed4d7d81f84601420ed906f8 SHA-1: 880a3db5496f41a032f224d8be4a1bd9507d6bff SHA-256: 9e902539e03998c3bfff122cfb4bb61283e08f6758e05548694a6efd8743555f
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The sample is a PDF document that contains embedded URLs and triggers heuristics related to malicious content and clipboard command lures. The 'SE_CLIPBOARD_COMMAND_LURE' heuristic indicates the document likely instructs the user to copy and paste content into a shell, suggesting an attempt to download and execute a secondary payload. The presence of multiple external URLs further supports this, as they are likely used for hosting or retrieving malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://lozipotod.ru/123?utm_term=feature+update+windows+10+1803+manual PDF link annotation
    • https://lexaxaverewazud.weebly.com/uploads/1/3/1/3/131381910/badapixinunuxi.pdfIn PDF document text
    • https://cdn.sqhk.co/luwiwaduna/UgioiU6/kenapalesaregunarafujawot.pdfIn PDF document text
    • https://nulosogitizibe.weebly.com/uploads/1/3/4/3/134317173/146e8d3dac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456999/normal_5fcedcaab67cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450890/normal_5fdb6693b0e3e.pdfIn PDF document text
    • http://vonurejawata.iblogger.org/21743873605.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369302/normal_6006af564f46e.pdfIn PDF document text
    • https://zirovosenes.weebly.com/uploads/1/3/4/3/134316706/bd5f8df6.pdfIn PDF document text
    • https://cdn.sqhk.co/xegunorasu/igdJBPg/smart_tv_client_for_twitch.pdfIn PDF document text
    • https://newewakezodem.weebly.com/uploads/1/3/4/6/134680802/josoxotoxekipubafiw.pdfIn PDF document text
    • http://zunugopubudo.22web.org/lumbar_spondylolisthesis_exercises_with_pictures.pdfIn PDF document text
    • https://cdn.sqhk.co/marivefigus/dijd5hg/pibowogokobumagixox.pdfIn PDF document text
    • https://nuzunuge.weebly.com/uploads/1/3/5/3/135399682/rivenufefe_gugafupowi_lubexumiba.pdfIn PDF document text
    • http://kopumiwabetare.66ghz.com/66669196470.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446035/normal_602098cae5f52.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vufuxit.epizy.com/50026124729.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/days_of_week_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/vonusirukete/mudanegobobujekeredi.pdfIn PDF document text
    • https://s3.amazonaws.com/jovekus/auriculares_bluetooth_xiaomi_manual.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002f787.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F787 5704 bytes
SHA-256: 3c0ad841d017b55c860da5df13cd4afe0d494a755820ad9e829c2fd140379570
font_01_sfnt_off00030aed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30AED 12620 bytes
SHA-256: 20a55430cf586d185d6dfeef95b2fb3c9f40bec5fc2a78b5166ce9fdb78a9bb1
font_02_sfnt_off0003355e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3355E 16320 bytes
SHA-256: 0cfca3032e5d7b914a5e04b10a4d8435954082c7c86b8090d279c4d4402a0c06

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