Malicious PDF — malware analysis report

Static analysis result for SHA-256 372888f7ff4ad50e…

MALICIOUS

PDF

82.8 KB Created: 2020-11-10 00:51:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9b68382eaabc9988a1d6f1de935867a0 SHA-1: 2ad07a374c774e132487c0ae9293d30c25130883 SHA-256: 372888f7ff4ad50e6fe645767909194ed00000b4f059ea0722e3a06e80800089
96 Risk Score

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 0.9997

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://trafffe.ru/123?keyword=roland+jupiter+80+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4373520/normal_5f88b599e4013.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381085/normal_5f8d61af3e1ac.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/sisaxu/gabezil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3482175e-435b-442d-a63b-db039ec5ad86/mevudigadexijo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/245418d5-8589-4108-9920-2a46adc74dde/dwarf_fortress_cage_trap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/284735d9-86cd-4b3b-886e-86f49d44dade/tixemevavib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f11e92f-78cb-45be-9fea-b9d3d2165c28/ziwavujodosujivasabo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d33f130-6af6-403d-b524-f7d5bf542f80/9517421985.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7a7ee55-df24-4853-a14e-712391b57a9a/waberorabune.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8024900-cd44-4477-ace2-3fceb9137379/4513154732.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ba68c94-1144-41d9-a4eb-de08f3446409/monster_led_light_strip.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_off0000e8fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8FB 5344 bytes
SHA-256: fe4312b4f745232e173fd19560b433ee057b8fbaeaeffdc3e0e4cb49f93fd9cb
font_01_sfnt_off0000fb17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB17 12636 bytes
SHA-256: b9f1f170171928893dd9e54b7ec5ca17edc2e9263044925d008bfb63355bdaa2
font_02_sfnt_off000122bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122BD 8392 bytes
SHA-256: 74359f496fb6166fcc3046bd6ce7d41c3794d2abe6981dcf9e37e27c929e7cce