Overview

overview

10

Static

static

10

Tata.exe

windows10-2004-x64

10

Tata.exe

windows10-ltsc_2021-x64

10

Tata.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    Tata.exe
  • Size 294KB
  • Sample260718-v288xagy5p
  • SHA256 cb9b47925d5da045708d5dcde51001b396c4940ad153aa23e9c5be019b169dce
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
sheetratcosturadefense_evasionexecutionpackerpersistencespywarestealertrojan

Malware Config

Extracted

Family

  • sheetrat

Version

  • 1.8

C2

  • 91.92.42.94:1117

Targets

    • Target
      Tata.exe
    • Size 294KB
    • SHA256 cb9b47925d5da045708d5dcde51001b396c4940ad153aa23e9c5be019b169dce
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    executionsheetratpersistencetrojancosturapackerdefense_evasionspywarestealer

    • Detects Sheetrat obfuscated V1.8 and higher

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

    • Family: Sheetrat, NonEuclid rat

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

      trojansheetrat

    • Modifies WinLogon for persistence

      persistence

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Drops desktop.ini file(s)

    • Command and Scripting Interpreter: PowerShell

      Start PowerShell.

      execution

    • Hide Artifacts: Hidden Files and Directories

      defense_evasion
    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

PowerShell

1
T1059.001

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

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

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Modify Registry

2
T1112

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks