Overview

overview

10

Static

static

10

olf1d1kqjx6nkhnz.exe

windows10-2004-x64

10

olf1d1kqjx6nkhnz.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    olf1d1kqjx6nkhnz.exe
  • Size 181KB
  • Sample261023-mtfbvs1y2j
  • SHA256 cc25b8243b1d5dcdd86d74950063ffc3de60516c56585af2414d7bee3efb6936
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
sheetratdiscoveryexecutionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

  • sheetrat

Version

  • 1.8

C2

  • openport.pw:40131

Mutex

Attributes
  • anti_virtual

    false

  • certificate

    cfxobj705xusxlh

  • exclusion_wd

    false

  • hidden_file

    true

  • install

    true

  • install_watch_dog

    true

  • key

    kvkgxv65dh1k

  • path_client

    %LocalApplicationData%\xdwdxd.exe

  • path_watch_dog

    %LocalApplicationData%\xdwdbot.exe

  • pump

    false

  • rootkit

    jozymk4w6rtdpu

  • task_client

    svchost

  • task_watch_dog

    svchost

  • use_install_admin

    false

  • user_init

    true

Targets

    • Target
      olf1d1kqjx6nkhnz.exe
    • Size 181KB
    • SHA256 cc25b8243b1d5dcdd86d74950063ffc3de60516c56585af2414d7bee3efb6936
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    discoveryexecutionsheetratpersistenceprivilege_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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    behavioral1behavioral2

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

1
T1547

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

1
T1547

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

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

System Network Configuration Discovery

1
T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks