Malicious PDF — malware analysis report

Static analysis result for SHA-256 ada1158ea6a4646b…

MALICIOUS

PDF

167.3 KB Created: 2021-02-15 10:33:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 2fb229cc88643cd010f42ad7772c86e4 SHA-1: b429b9e6fb723262a694d48a0b7b83eeb0433ea6 SHA-256: ada1158ea6a4646b4e1eb87309446eb5c4933442e9f40ba1d9d749a6f224a1ad
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 0.9998

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://baarspo.ru/123?utm_term=virginia+8th+grade+science+sol+review PDF link annotation
    • https://cdn.sqhk.co/fuluzagile/fPZjdjj/god_simulator_games_free_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477156/normal_5fe0489a2f4ce.pdfIn PDF document text
    • https://mikezopa.weebly.com/uploads/1/3/4/3/134366842/e639aac2e7.pdfIn PDF document text
    • https://bezujopejot.weebly.com/uploads/1/3/1/6/131606295/farasinuwubogozaziv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401714/normal_601eecfff1dd3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382948/normal_602891eb6a38f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4527747/normal_5fc7173d7c191.pdfIn PDF document text
    • https://dusalunefawotof.weebly.com/uploads/1/3/4/4/134487283/lagobi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479933/normal_5fefbb6b95350.pdfIn PDF document text
    • https://makifilibavik.weebly.com/uploads/1/3/5/3/135383918/4869542.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/lixasifasi/elm327_bluetooth_pc_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/batman_vs_superman_comics.pdfIn PDF document text
    • https://s3.amazonaws.com/pozokimepe/24415563117.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/banco_frances_sucursal_formosa_capital.pdfIn PDF document text
    • https://s3.amazonaws.com/defujo/esma_liquidity_stress_testing_guidelines.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_off00025591.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25591 5512 bytes
SHA-256: f8a97055f74e0732c5223b87e066cf7a5d818c176d5b82ade70ccabe8fe4e944
font_01_sfnt_off00026860.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26860 11536 bytes
SHA-256: 97d6a0b4d898d3a7dc927f7ea548c8f6cf6f3eccf01078a036208bf04a89b138