Malicious PDF — malware analysis report

Static analysis result for SHA-256 1952092263615d77…

MALICIOUS

PDF

58.4 KB Created: 2020-11-13 21:30:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 91e3885cedbf629f53b5c5c239ec4dfe SHA-1: de336cbd75ee69a502c4b057f2e7e74baaa449a4 SHA-256: 1952092263615d77d8b881978cfaca6847ce6f5586be8c7035d30e0cc2f567b5
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 0.9996

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://trafffi.ru/123?utm_term=unit+7+vocab+level+e+answers PDF link annotation
    • https://nobinetezo.weebly.com/uploads/1/3/0/9/130969761/2681029.pdfIn PDF document text
    • https://sopulekazixov.weebly.com/uploads/1/3/0/7/130776801/3893384.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404983/normal_5f9d2a762a6aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421471/normal_5f991b8fdfd38.pdfIn PDF document text
    • https://bubiwodepu.weebly.com/uploads/1/3/2/8/132815961/2085043.pdfIn PDF document text
    • https://bizavurodetilu.weebly.com/uploads/1/3/4/3/134391156/xatigorilomuda_morebadawop_jasoduv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nonabafat/dosakiluxurutewerad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cdf12f3d-d07f-41c1-9a26-541490ac82c4/nezule.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/vemewimonu.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/kepitonedabatajo.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/oak_grove_plantation_alabama.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/caballo_de_troya_1_free_download.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_off0000aa23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA23 5156 bytes
SHA-256: c12ba9df5604d1b1d64b30c0da54882205dc112f78416bc854d04ea63113c316
font_01_sfnt_off0000bbda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBDA 10296 bytes
SHA-256: b09ead51c8d94d1b80fe6ef32eabc88a82fc4cb151105c95e535d5336d838354