Malicious PDF — malware analysis report

Static analysis result for SHA-256 08eb4a1755cac2da…

MALICIOUS

PDF

69.0 KB Created: 2020-12-24 05:16:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7c9a4dd5880b1b688c88f0055da1d8ce SHA-1: 1a496ef476931b7b9eb6aab021f92e38eff098d9 SHA-256: 08eb4a1755cac2daf62e83a7478ab07d4fcdc9f32c12cef07be3f5f443f54ec2
104 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. It uses an urgency-based lure. 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 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://traffine.ru/strik?utm_term=english+grammar+learn+online+free PDF link annotation
    • https://xarupome.weebly.com/uploads/1/3/4/4/134469096/3442f88119ee8c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415934/normal_5fa74b5460e87.pdfIn PDF document text
    • https://misopiwulasi.weebly.com/uploads/1/3/1/8/131856666/d58bda9.pdfIn PDF document text
    • https://xalipifizipig.weebly.com/uploads/1/3/1/3/131379045/munosebedopefiwo.pdfIn PDF document text
    • https://davabodijesofid.weebly.com/uploads/1/3/4/4/134474123/sipemobixa_sakas_riwoxizusumoz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a55408b6-ca23-4c30-a029-73d9bc21d444/ue_mega_boom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbab6a4a-6ebd-4844-8f81-84c12cd89fa8/tadonofisukivufemijugon.pdfIn PDF document text
    • https://s3.amazonaws.com/xupizewuxere/bootstrap_navbar_menu_templates.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5881bcd-344e-4509-8142-ed24ba4fd7e8/24976490839.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/arashiyama_bamboo_forest_japan_guide.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_off0000cf1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF1E 5140 bytes
SHA-256: c55db44a76fdbb253724ded7a2455197568493b9f2b4474dff6859420fae6697
font_01_sfnt_off0000e06f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE06F 11420 bytes
SHA-256: d725aa4e64788537727eb3caf4e5fc21e33263aae25d9b84593b644db15ac9eb