Overview

overview

10

Static

static

10

Client.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    Client.exe
  • Size 304KB
  • Sample260908-nc6m6ayfqf
  • SHA256 94b60cd4e553d2bf9cf73c8a2fbf4e592e6eb35ae9aa77760db84c614b2fd86e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
sheetratuserexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

  • sheetrat

Version

  • 2.6

Campaign

  • User

C2

  • 192.168.1.109:8848

Mutex

  • Sheet_rjknnhelcnb

Attributes
  • ddr

    IPMODE

  • hidden_file

    true

  • install

    true

  • install_watch_dog

    false

  • path_client

    %CommonDocuments%\xdwdMicrosoft Security Essentials.exe

  • path_watch_dog

    %CommonPictures%\xdwdRainmeter.exe

  • pump

    true

  • rootkit

    true

  • user_init

    true

Targets

    • Target
      Client.exe
    • Size 304KB
    • SHA256 94b60cd4e553d2bf9cf73c8a2fbf4e592e6eb35ae9aa77760db84c614b2fd86e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    userexecutionsheetratpersistenceprivilege_escalationtrojan

    • Detects Sheetrat Payload

      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

    • 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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks