Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ec80c190d1cdf4a…

MALICIOUS

PDF

88.4 KB Created: 2020-11-19 22:21:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 387a1024469dad433caab4b4e25b51d2 SHA-1: b818dc1ffc88ae55aba1fefeada58f9c7c8f1a29 SHA-256: 3ec80c190d1cdf4aea6cf20b16fffbeb9adcdff53725b70b83c559e8e153d957
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9962

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://trafftec.ru/strik?utm_term=lcd+vs.+plasma PDF link annotation
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/vanixepexikadokivak.pdfIn PDF document text
    • https://daxefumusadaja.weebly.com/uploads/1/3/4/7/134763928/noroxivijalujaro.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408879/normal_5f985c66dd095.pdfIn PDF document text
    • https://nirulutot.weebly.com/uploads/1/3/4/7/134700174/guranelanavifit_wobigadolar.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e98f9601-04bc-4468-b79e-c5ab0a7ee726/telozaxukaliluribedoxoti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5960e1b-aea8-4dd3-9bdf-5b2d4c11dfb2/56627777408.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f6d80ed-62f2-4e16-917a-41f89f0de2a3/digeferus.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/beyblade_burst_app_mod_apk_android_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/194a818c-ad01-4113-8216-eab37a33a42a/asa_di_vaar_mp3_download_djpunjab.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_off00011b4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B4C 5156 bytes
SHA-256: 1d58a7dcddd31573595da14f07a8bf9d08ec5f70e0ede8327fab7c79d6ab7889
font_01_sfnt_off00012cd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CD8 12012 bytes
SHA-256: c755723e8a97b2b655ef17bba2d139e64a50d00a97d308bdb11620a2de0b7a23

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