Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3a31118ee2f58bb…

MALICIOUS

PDF

74.2 KB Created: 2020-12-23 19:33:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 6fb2913f89ecb350f8aef93b79adab37 SHA-1: 9954402489c260688903efb76a836059f6864a67 SHA-256: c3a31118ee2f58bbba87ea34468a236547854cc485644366ecbfd61bdfa34dff
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to 'traffking.ru', likely a malicious landing page. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, potentially for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8979

Heuristics 3

  • 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
  • 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://traffking.ru/strik?utm_term=subway+banana+super+hero+fun+race+dashboard PDF link annotation
    • https://cdn.sqhk.co/nugutobudan/ZXkjfhd/biwixunaki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459055/normal_5fdaea9abbdf8.pdfIn PDF document text
    • https://cdn.sqhk.co/fokivetezabu/DRicfUh/titan_quest_multiplayer_quests_not_working.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366385/normal_5fe1c1018b1ab.pdfIn PDF document text
    • https://zudiwimuda.weebly.com/uploads/1/3/1/4/131438079/girerirorexofow_tofakelejixobi_buwamogesu.pdfIn PDF document text
    • https://cdn.sqhk.co/likafupat/QDgehdA/29107400435.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/d4a0c60b-64fc-48ca-b2a0-05aca0891439/planeacion_de_matematicas_segundo_gr.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1072f71-bc76-43e8-81fc-131847aedc78/gitipisumutukavurojuma.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4124c96c-0d58-4e2b-bc1e-cb438e6846de/62902272404.pdfIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/kufebukidib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/573e2532-9452-446b-aab6-f43cf93cf1bc/16035919893.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E3 5648 bytes
SHA-256: 6d50308e01c0edacfb4aa62ca4095e5ca0ce1300e34b2dc8bea95c4917c58686
font_01_sfnt_off0000f62a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF62A 3048 bytes
SHA-256: ac2841101d39d28ba26b05da79f8c943e129bf7e8646fd7c19196daf507b896b
font_02_sfnt_off000102f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102F0 12224 bytes
SHA-256: 42f2ba9f1ebea0f447acee1f18f7d882c0038219b0affa004ab4f91ec2fb9727