Overview

overview

10

Static

static

3

fb41s6bo36isl02p.exe

windows10-ltsc_2021-x64

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General

  • Target
    fb41s6bo36isl02p.exe
  • Size 513KB
  • Sample260827-klg5dagh46
  • SHA256 b360cc7ef0c4d54dfaa4763c8c457e2a5c01b64733537538ac1e7df8b5124cdc
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoveryexecutionpersistenceprivilege_escalation

Malware Config

Targets

    • Target
      fb41s6bo36isl02p.exe
    • Size 513KB
    • SHA256 b360cc7ef0c4d54dfaa4763c8c457e2a5c01b64733537538ac1e7df8b5124cdc
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoveryexecutionpersistenceprivilege_escalation

    • Modifies WinLogon for persistence

      persistence

    • Adds policy Run key to start application

      persistence

    • Disables RegEdit via registry modification

      defense_evasion

    • Disables Task Manager via registry modification

      defense_evasion

    • 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

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

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

      discovery

    • Command and Scripting Interpreter: PowerShell

      Start PowerShell.

      execution

    • Drops file in System32 directory

    behavioral1

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

3
T1547

Registry Run Keys / Startup Folder

2
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

3
T1547

Registry Run Keys / Startup Folder

2
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

4
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks