Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba46b91312449f4e…

MALICIOUS

PDF

72.7 KB Created: 2020-12-17 23:56:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 14ee42461046de7fde2418cdcf546df2 SHA-1: 0675366ea46358b4f117ddc7c1fa3ff090b66d65 SHA-256: ba46b91312449f4ef9e03d1b2b87319fa3aaba394df75f2bb5b0d7b286095e68
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-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://traffset.ru/strik?utm_term=a+streetcar+named+desire+ap+lit+essay PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369187/normal_5fbeb3392574c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422631/normal_5fa58adbb51d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366306/normal_5f87485016924.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461229/normal_5fcd29eae5af7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465709/normal_5fa383599a6d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403128/normal_5fb5495a57342.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/jevopemosod/new_ringtones_for_android_mobile_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/cardiologia_pediatrica_gratis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77ffac86-c3b0-475b-ae13-7ffc0063215c/download_kuroko_no_basket_last_game.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11cb41df-f3a2-48a1-abdc-6a60a20b3a36/37763576581.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/2951385876.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/nimokez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae3e658d-1613-4de3-8db9-6f88ad59f55b/tcu_graduation_may_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/baritexovopa/andragogy_vs_pedagogy.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_off0000e16c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE16C 5308 bytes
SHA-256: 15756d86e39ef8067a9e31cafc86664d804363f7a96ed4b813b0f8fc2c06a4f3
font_01_sfnt_off0000f36c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF36C 10056 bytes
SHA-256: 2e9e4b26c10cba345d0a9bc9deadfc2ac992905da611b85a9da4f86ef6323482