Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0ee9c941d56b456…

MALICIOUS

PDF

65.0 KB Created: 2020-12-18 05:58:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 7e083536765e05a73f930905fad75688 SHA-1: e6a9fe226aeeb9a5dcfa482ba76db4a59db61f01 SHA-256: e0ee9c941d56b4568106aa9bb3c2a32e5f0ce56e0373f4a411a4b757d2b09ebb
96 Risk Score

Malware Insights

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

The file is a PDF document detected as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to 'trafftec.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to legal documents ('quitclaim deed texas sample'). No scripts were extracted, but the presence of external URLs and the overall detection profile strongly indicate a malicious intent to redirect the user to a compromised resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=quitclaim+deed+texas+sample PDF link annotation
    • https://sawuraba.weebly.com/uploads/1/3/4/7/134720576/vebabewopu_mezukodolexe_tumewuwazavoj_redozatu.pdfIn PDF document text
    • https://tojezupemizeraw.weebly.com/uploads/1/3/4/6/134629845/f4c1003.pdfIn PDF document text
    • https://xosetumigex.weebly.com/uploads/1/3/4/3/134371377/gejubebinixabezot.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/24b5d300-e6db-465c-9950-1d39ca8b4161/vuzebitivow.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc556b8a3bf4b14abc694f3/t/5fcee5e8798354522d01b06d/1607394793170/49027211412.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dcc9f98d-19e6-442f-ac32-38fde74369b6/cher_just_like_jesse_james_chords.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/principios_basicos_de_administrao_publica.pdfIn PDF document text
    • https://s3.amazonaws.com/juzowilipi/quantum_flash_t2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23287131-7b65-480c-9e5d-90d54d5def7e/gusubopiporelaraledodago.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_off0000c1f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1F6 5252 bytes
SHA-256: 5513b5c5c8d397a28c3e8f6d830a915fba1722ad4fe894a870f4817bd1a74998
font_01_sfnt_off0000d3ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3CA 10628 bytes
SHA-256: be33438e79fedaea219b5138ba5c806bfc63549e8493d129ec5e42424c59d8fb