Malicious PDF — malware analysis report

Static analysis result for SHA-256 24ce006cd8c013fd…

MALICIOUS

PDF

60.4 KB Created: 2020-11-10 08:42:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 577725abd2494e8abf96a7fe0f35100f SHA-1: 218ebe466f3d6e2167f0eadce1f51d9b1d77a5fa SHA-256: 24ce006cd8c013fddd6bec7a082f7eba762d453d60e57629efae904fe82fdbd4
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The embedded URL is the primary indicator of compromise, suggesting the document's purpose is to redirect the user to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffking.ru/123?keyword=let+god+arise+chris+tomlin+chords PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4373259/normal_5f8cc882e0c37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382960/normal_5f9243e1c12c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446259/normal_5f9e2dfd48fc3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367617/normal_5f9d00fa30530.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369327/normal_5f944f5bc9b62.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365598/normal_5f8963379da0f.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/c97ac6ca-299a-4220-85d5-3cce9a2fd6ee/zarojum.pdfIn PDF document text
    • https://s3.amazonaws.com/bagisi/harbor_freight_franchises.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/cement_and_concrete_institute.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5111a943-179b-4d13-85b1-d0b836e59ff7/ruzis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7007f49e-efb2-4cf2-a3ee-2c881fa1cf08/sobazosisekate.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/waxakutiribafeburi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e75ecb8e-d9ea-494b-86b0-c80efa240577/um_estudo_de_vdeo_de_charlotte_epub.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_off0000b0fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0FA 5292 bytes
SHA-256: a0a668f8818c61f2cea0cbff58b49496e79850ce78c3a49d38a2a0a3e671b7bb
font_01_sfnt_off0000c2d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2D4 9952 bytes
SHA-256: 4ef982078c224c0a612ff3ba51cbe4c22f4b67e82a792176f240ec3b913cd77b