Malicious PDF — malware analysis report

Static analysis result for SHA-256 d402aef5f2e5c491…

MALICIOUS

PDF

79.7 KB Created: 2021-04-02 18:12:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1bfe2b268e48e552d7dad78db9758155 SHA-1: 8d7d8024517f5fc44ede8a95748b3cdbebe110ab SHA-256: d402aef5f2e5c49120344a7b80e4b9823df88d4f3b1530275e49a18aabf4fcc4
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=a+pro-+forma+financial+statement+shows PDF link annotation
    • https://cdn.sqhk.co/petawelesup/fjhjfgf/topalemadekawimirujuzuk.pdfIn PDF document text
    • http://eeuuurrrrr.space/powerpoint_templates_for_presentation_free1juqs.pdfIn PDF document text
    • https://xizimojagetotom.weebly.com/uploads/1/3/3/9/133997363/mebomonaxa.pdfIn PDF document text
    • https://zuranuwazob.weebly.com/uploads/1/3/5/3/135332575/lufudesozivonola.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490516/normal_6012f03ee151c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419822/normal_60090eda2b3e6.pdfIn PDF document text
    • https://cdn.sqhk.co/wezupobuwab/6hcNjji/64340386564.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376875/normal_6066e02267836.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489028/normal_5fe18b5d80c5c.pdfIn PDF document text
    • http://btsworld.org/2006_nissan_altima_v6_oil_capacity7n0fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392218/normal_605474dbbe08b.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/mivokozibu/jarawa.pdfIn PDF document text
    • http://nemabufebuxabo.epizy.com/mamuxolubutorovem.pdfIn PDF document text
    • https://s3.amazonaws.com/juliziwojatige/wuvorakox.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/cg_navbharat_news.pdfIn PDF document text
    • http://bebidexaroz.rf.gd/21760033566.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/kcet_2018_answer_key_physics_version_a.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_off0000faa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAA4 5368 bytes
SHA-256: 50d051ba2ce4f7406e17bb81f9edc7fe81946c7c951f43263f4e537336867ad7
font_01_sfnt_off00010cce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CCE 10856 bytes
SHA-256: a0999fc4c089e116e00ebaa8bb9080b3240d0ea8865e67edebef1d3200abfe07