Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecc622eef9e5524c…

MALICIOUS

PDF

69.8 KB Created: 2020-11-17 18:59:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: e990ccccf692f88c7977c02d8db63255 SHA-1: 7c6ffb7bc29a0d302640208df35e50d9fbd391e1 SHA-256: ecc622eef9e5524cec6543f92c86379df7e29a89b6c9663d4ccd1325c2aac373
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF was flagged by ClamAV as 'Pdf.Phishing.Trojan' and a machine learning classifier indicated a high probability of maliciousness. It contains an embedded URI pointing to 'https://trafftec.ru/123?utm_term=semicolon+and+colon+worksheet+pdf', which is likely used to deliver a malicious payload or redirect the user to a phishing site. The document body appears to be corrupted or obfuscated, preventing a clear understanding of its content beyond the embedded URI.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/123?utm_term=semicolon+and+colon+worksheet+pdf PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7169b782-e4b1-4263-a4a2-ebe6bceebedb/examples_of_pastoral_societies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4749d765-bbaf-4dce-94dc-3f8f45718e6f/tegupogazewavaki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1fc8323-e072-4ec0-ae92-2a7fda6b37f2/download_movie_the_purge_anarchy_in.pdfIn PDF document text
    • https://s3.amazonaws.com/fizup/dutizozamolaxizo.pdfIn PDF document text
    • https://s3.amazonaws.com/mavixu/2380961667.pdfIn PDF document text
    • https://s3.amazonaws.com/zukukelejurotef/12387034740.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7775b6d9-b0ba-4d8d-9431-6bbd0b198132/mojef.pdfIn PDF document text
    • https://s3.amazonaws.com/wapabefizosumi/oxo_barista_brain_owner_s_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2658256c-e203-443d-a0a8-54e43856ad60/homebrew_warlock_patrons.pdfIn PDF document text
    • https://s3.amazonaws.com/kavugusepe/ingenuity_washable_playard_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f97293fa-fd5f-4cc7-8208-c90e64ee7c5a/whack_your_boss_24.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/ca_dmv_behind_the_wheel_test_score_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1655677f-eeee-43a7-998f-2f795c403208/xujunonugo.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_off0000d244.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD244 5656 bytes
SHA-256: b0f6cd27a02481c8ea8ccf32eabeadc19a5a16c264ccd7422975beba61a43c50
font_01_sfnt_off0000e569.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE569 10908 bytes
SHA-256: 8692c9657fc96f447893a2a2a08d19450643505b202d3d1a7038a65bf31434fd

Open this report in the interactive analyzer, or submit your own file for analysis.