Overview

overview

10

Static

static

10

Client.exe

windows10-ltsc_2021-x64

10

Sharing

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General

  • Target
    Client.exe
  • Size 691KB
  • Sample260718-pml7yabv7l
  • SHA256 ab9b402efef04f2081d4e4d95fa543e80c308580f8cb83a6fbb98872df863ba0
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
sheetratsheet_wvnkneyyxnexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

  • sheetrat

Version

  • 2.6.4

Campaign

  • Sheet_wvnkneyyxn

C2

  • tvato-162-19-240-195.run.pinggy-free.link:34745

Targets

    • Target
      Client.exe
    • Size 691KB
    • SHA256 ab9b402efef04f2081d4e4d95fa543e80c308580f8cb83a6fbb98872df863ba0
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    sheet_wvnkneyyxnexecutionsheetratpersistenceprivilege_escalationtrojan

    • Detects Sheetrat obfuscated V1.8 and higher

      Sheetrat aka NonEuclid RAT is a trojan written in C#.

    • Detects Sheetrat obfuscated version

    • Family: Sheetrat, NonEuclid rat

      Sheetrat aka NonEuclid RAT is a trojan written in C#.

      trojansheetrat

    • Modifies WinLogon for persistence

      persistence

    • Event Triggered Execution: AppInit DLLs

      Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

      persistenceprivilege_escalation

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence
    behavioral1

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Windows Command Shell

1
T1059.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

AppInit DLLs

1
T1546.010

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

AppInit DLLs

1
T1546.010

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks