Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0a13b249699556e…

MALICIOUS

PDF

70.0 KB Created: 2020-12-10 04:40:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 960dc58e790c0cb8d10f5b7fd17fb9d9 SHA-1: da7df12b5784eafb84273cc3ce77eb005f7c1220 SHA-256: f0a13b249699556eebfe0a302919732855c15c8eca82c12f993f1ad1210f866e
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 0.9997

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://trafftec.ru/strik?utm_term=introduction+for+environmental+issues+essay PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4391302/normal_5f9edfbf31258.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405945/normal_5fa555db7cf1d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412592/normal_5fa5e566b184f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371010/normal_5fd086fc2df1b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc1571bc30a162e0c558f21/t/5fc4da319ee0f32b87ec3d38/1606736435162/ratalijino.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e45f640d-7f82-4a64-aa51-6f4850a0016f/5x5_workout_program.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/67114461652.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/21484281325.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b05f57b-1c96-4308-96b8-3ee947dc9c45/31737332214.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a8ba428-003d-4b4d-ae12-54924cf9004d/xobikanoj.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/bo_staff_fighting_techniques.pdfIn PDF document text
    • https://s3.amazonaws.com/fufaragebo/vonafepaxudej.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/experiment_builder_manual.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_off0000d6b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6B3 5268 bytes
SHA-256: e837d06b73cfb126336d38e81847620ead4feddd3779dd6d4a7ab67754dd3871
font_01_sfnt_off0000e892.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE892 10120 bytes
SHA-256: 27685782242775cbe785ecf2969f5414e66c75fabd325fba6c09394aaf84bd32