Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0d51f24e403cf39…

MALICIOUS

PDF

65.1 KB Created: 2020-11-25 22:50:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 30b47baa06ab823ccdcef8c9eb74ab34 SHA-1: 252396421854a357fabf9f9179237234f27c5ed2 SHA-256: c0d51f24e403cf39494cad69d2ce42438fc5e0357b4304c611cec5cdd4197ecf
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://trafffi.ru/aws?utm_term=arundhati+tamil+movie+free++tamilyogi PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368782/normal_5f9254598332e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408703/normal_5f959ae9ebc0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413702/normal_5f94dcaa6e54e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366978/normal_5f8807e4b7704.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/fobupojowojon/harry_potter_theme_song_sheet_music_trombone.pdfIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/88713126418.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e942057-5541-4329-b711-ff204cadf30e/exemple_de_discours_pour_un_mariage.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/53156922379.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2916951e-c1c7-4afc-915a-afb265269e52/nys_primary_2020_results.pdfIn PDF document text
    • https://s3.amazonaws.com/kukazowox/68943183772.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/calendar_2019_october_november_december.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/63998664459.pdfIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/wiwefewuxeja.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/xifefixasewilufogolopu.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_off0000c235.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC235 5296 bytes
SHA-256: 125dcdfa9bbb0e4cd1221e1e6b61cae7ac5a49202b78c3844b8f610a4ac9ff36
font_01_sfnt_off0000d421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD421 10448 bytes
SHA-256: b6821134c5a1e74d15c3b258f2667bb79f019fccb1d5189ef10e0c12fc96216c