Malicious PDF — malware analysis report

Static analysis result for SHA-256 bca20021add58e8f…

MALICIOUS

PDF

82.1 KB Created: 2020-12-08 18:16:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 1baa2e62b11c9fe780f798b10652a605 SHA-1: 905ab592761960e9e93f113d4a5eca77d1093ec9 SHA-256: bca20021add58e8fb4f8ef359d42f45f01fb91b953c404e6aab8f792df2032e7
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafficel.ru/strik?utm_term=andres+carne+de+res+bogota+opening+hours PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4388038/normal_5fc7c3e828cb1.pdfIn PDF document text
    • https://miburinu.weebly.com/uploads/1/3/4/4/134464577/mewebu.pdfIn PDF document text
    • https://pubedazemel.weebly.com/uploads/1/3/4/8/134870130/zisidur.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385021/normal_5f8c51ec02660.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370264/normal_5f89105098708.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498345/normal_5fc3de2fa7803.pdfIn PDF document text
    • https://kigikosofo.weebly.com/uploads/1/3/4/0/134041402/bikuju_wavagezuku.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367665/normal_5f930e312096c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/ritoma/sony_company_introduction.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd07b545ca4f7902678947/1606223797312/19082875144.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc574671c8c74131450b5d2/t/5fcd6aa383d2ac65cc273d92/1607297702116/75711319189.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF501 5316 bytes
SHA-256: 50ad764ee2420fc697478ee5abcbfea1045683d30223542fa7c6b5e4827065a8
font_01_sfnt_off000106f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106F6 10924 bytes
SHA-256: ed7055d515cf740096ad689b3097584328d89777265b79c5f00c92358671bb8c
font_02_sfnt_off00012bac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BAC 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230