Malicious PDF — malware analysis report

Static analysis result for SHA-256 13d04163d6e7ddcb…

MALICIOUS

PDF

73.8 KB Created: 2020-12-27 20:51:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: d89fb81f451c5fef68a087ee6c01a284 SHA-1: 78a3ae73e95500700ff717883b61b2ab88ee5ae0 SHA-256: 13d04163d6e7ddcbee528a6b2891aa3c2129b3274bdefbffc9c54d31f477ba30
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. An external URI pointing to 'trafftec.ru' was extracted, suggesting a phishing or malware delivery attempt. The document body, though heavily obfuscated, appears to contain text related to a product, likely serving as a lure.

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://trafftec.ru/123?utm_term=how+to+set+citizen+eco+drive+wr200 PDF link annotation
    • https://cdn.sqhk.co/marixefe/ahiuKjb/mutiwavixaxamakubupaz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388428/normal_5f9351f92eb67.pdfIn PDF document text
    • https://cdn.sqhk.co/xulawajikigi/igfAhfe/hide_and_seek_among_us_discord_server.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465704/normal_5fc42b047bd73.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413862/normal_5fa587e65fb15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374199/normal_5faa895e15f61.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420224/normal_5fc4b56726569.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475582/normal_5fd14aa9ddd58.pdfIn PDF document text
    • https://cdn.sqhk.co/sirejeforox/fjjgfZL/laundry_room_washing_clothes.pdfIn PDF document text
    • https://cdn.sqhk.co/lilapanorup/8ghihjf/juxagewide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451355/normal_5fcf27378a759.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/16de6a0c-3812-4a66-886d-9ebe340eb5d2/la_dchirure_film_complet.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d8cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8CD 4916 bytes
SHA-256: 00867ffe102f2826e1293b248cda18dbbe28ebf310d79dad05d9a984eb36e3e4
font_01_sfnt_off0000e9a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9A9 10152 bytes
SHA-256: ee515b9b2da6a8bb02e82ec1a9946fcf9b180ae635ab275ea5d1bd3fab5a1a84
font_02_sfnt_off00010c66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C66 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3