Malicious PDF — malware analysis report

Static analysis result for SHA-256 e22f23772ffd9f66…

MALICIOUS

PDF

69.6 KB Created: 2020-12-06 05:56:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 12f3502306e5a88559ea65c97b27fc90 SHA-1: d9138f03fb392d825756400b897031a22c3bdeed SHA-256: e22f23772ffd9f667e08cc675dc3b7114a86bace039769a9d08306cfa9983c2d
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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://traffine.ru/strik?utm_term=mass+effect+3+missions PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0e0febe9b6939510aa6a3/t/5fc5246c6457125654e0f685/1606755437057/walking_dead_road_to_survival_character_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0fbb61c8c741314323605/t/5fc2643c5147b14804803cee/1606575165143/perisot.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc194132cf09257bd70d589/t/5fc356d9e6d49a06bbfd188c/1606637274058/xbox_360_code_8015d000a.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c3a9b2e-c833-4a99-829f-960a4180f633/gunopifowerelogoreleje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c8d79a9-8bdf-4f65-a10f-6997148f1118/47743002611.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5a0febd14ff0dd2bcca88/t/5fc6948c18e72e5fdbbe1e3c/1606849677017/baxefofaxakidafoweloxol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/223a835a-7aeb-4e76-8cd3-f9ada049edeb/30740442830.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4fc318e72e5fdbce3952/1606373316001/wujeralinajinis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef619f64-7a78-43ab-aa86-7405e5d0b8a3/lizojal.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe088361e25426e1fffb45/1606289544695/weather_bonners_ferry_idaho_7_day.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe105e145a8629dc78497c/1606291552277/didukojibexisediwukakup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52ef0b37-e024-4ca8-8456-cd5b112ef493/resident_evil_5_tips_and_tricks.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/at_t_uverse_outage_report.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_off0000d3c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3C9 5068 bytes
SHA-256: c4e07af5f644ac6cc060f0ee77a7bec4b9b24e8b06bcdf8960db9fda206c0bf8
font_01_sfnt_off0000e50a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE50A 10828 bytes
SHA-256: 534ca17a50b99ec5cf4a9ab5b6e88a85e9548a9b5ac877940212e3cc183250a4

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