Overview

overview

10

Static

static

3

2026-07-31...om.exe

windows10-2004-x64

10

2026-07-31...om.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    2026-07-31_2ada55d4eeb3bfb6e064fd420d32304b_blankgrabber_cobalt-strike_glassworm_icedid_njrat_satacom
  • Size 12.5MB
  • Sample260731-jjs87afa74
  • SHA256 d224de6205bba9b14084e225282b70190d77ea04be31be0bf3a74aad01f6bfb7
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
sheetratbootkitdefense_evasiondiscoveryevasionexecutionpersistencepyinstallertrojan

Malware Config

Targets

    • Target
      2026-07-31_2ada55d4eeb3bfb6e064fd420d32304b_blankgrabber_cobalt-strike_glassworm_icedid_njrat_satacom
    • Size 12.5MB
    • SHA256 d224de6205bba9b14084e225282b70190d77ea04be31be0bf3a74aad01f6bfb7
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    bootkitdefense_evasiondiscoveryevasionexecutionsheetratpersistencepyinstallertrojan

    • 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

    • Modifies Windows Defender DisableAntiSpyware settings

      evasiontrojan

    • Modifies Windows Defender TamperProtection settings

      evasiontrojan

    • Modifies security service

      defense_evasion

    • UAC bypass

      defense_evasiontrojan

    • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

    • Detects executables (downlaoders) containing URLs to raw contents of a paste

    • Detects executables embedding registry key / value combination indicative of disabling Windows Defen

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Drops file in Drivers directory

    • Sets service image path in registry

      This determines the executable launched when a service starts. It can be used to establish persistence.

      persistence

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Indicator Removal: Clear Windows Event Logs

      Clear Windows Event Logs to hide the activity of an intrusion.

      defense_evasion

    • Loads dropped DLL

    • Stops running service(s)

      defense_evasionexecution

    • Windows security modification

      defense_evasiontrojan

    • Checks whether UAC is enabled

      defense_evasiontrojan

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

      discovery

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • Drops file in System32 directory

    • Hide Artifacts: Hidden Files and Directories

      defense_evasion
    behavioral1behavioral2

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

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

5
T1543

Windows Service

5
T1543.003

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

5
T1543

Windows Service

5
T1543.003

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Impair Defenses

5
T1562

Disable or Modify Tools

4
T1562.001

Indicator Removal

1
T1070

Clear Windows Event Logs

1
T1070.001

Modify Registry

8
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Discovery

Peripheral Device Discovery

2
T1120

Query Registry

7
T1012

Remote System Discovery

1
T1018

System Information Discovery

8
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

2
T1016

Internet Connection Discovery

2
T1016.001

System Time Discovery

1
T1124

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

1
T1489

Tasks