Overview

overview

10

Static

static

7

para-triag...os.zip

windows11-ltsc_2024-x64

1

audiodg.exe

windows11-ltsc_2024-x64

9

taskhost.exe

windows11-ltsc_2024-x64

10

taskhostw.exe

windows11-ltsc_2024-x64

9

unsecapp.exe

windows11-ltsc_2024-x64

9

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General

  • Target
    para-triage-somente-binarios.zip
  • Size 54.4MB
  • Sample261107-vybs8sdv8x
  • SHA256 d954621bc71c8c391ad4aaa3a158b1d4cc9bb499e8927149d04da30d468752cd
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
xmrigdefense_evasiondiscoveryexecutionminerpersistencethemidatrojan

Malware Config

Targets

    • Target
      para-triage-somente-binarios.zip
    • Size 54.4MB
    • SHA256 d954621bc71c8c391ad4aaa3a158b1d4cc9bb499e8927149d04da30d468752cd
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    behavioral1
    • Target
      audiodg.exe
    • Size 4.5MB
    • SHA256 3f68c47b27c7d7bf247e54e69925221fe9b71efc898929913acc507e926077fa
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    9/10
    defense_evasiondiscoverypersistencethemidatrojan

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      defense_evasion

    • Checks BIOS information in registry

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

    • Executes a file named after a Windows system binary

      The file runs from a user directory while carrying the name of an executable that normally only exists in System32.

      defense_evasion

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • 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.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

      defense_evasion
    behavioral2
    • Target
      taskhost.exe
    • Size 16.9MB
    • SHA256 71477ac7eef1f3dfeae332aa7bf6c5d9a18c0dab238b2e5d75ba4c4b17cd0985
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoveryexecutionxmrigminerthemidatrojan

    • Family: xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

      minerxmrig

    • Modifies visibility of hidden/system files in Explorer

      defense_evasion

    • XMRig Miner payload

      miner

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      defense_evasion

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • Modifies file permissions

      discovery

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Checks whether UAC is enabled

      defense_evasiontrojan

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

      defense_evasion

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

      defense_evasion
    behavioral3
    • Target
      taskhostw.exe
    • Size 21.0MB
    • SHA256 459963495bf0c71e1d1654f51e004fc0b3b8c919fd8931571f9b94209cc7389d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    9/10
    defense_evasiondiscoveryexecutionpersistencethemidatrojan

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      defense_evasion

    • Drops file in Drivers directory

    • Checks BIOS information in registry

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

    • Executes a file named after a Windows system binary

      The file runs from a user directory while carrying the name of an executable that normally only exists in System32.

      defense_evasion

    • Modifies file permissions

      discovery

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      defense_evasiontrojan

    • Looks up external IP address via web service

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

      discovery

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

      defense_evasion
    behavioral4
    • Target
      unsecapp.exe
    • Size 13.0MB
    • SHA256 d30a26d6f6676d700f86db8ff522cccfea285e1272f2dba210cf99c3b676a773
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    9/10
    defense_evasionthemidatrojan

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      defense_evasion

    • Checks BIOS information in registry

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Checks whether UAC is enabled

      defense_evasiontrojan

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

      defense_evasion
    behavioral5

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

Windows Command Shell

1
T1059.003

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Debugger Evasion

1
T1622

File and Directory Permissions Modification

1
T1222

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Indicator Removal

1
T1070

File Deletion

1
T1070.004

Masquerading

1
T1036

Match Legitimate Name or Location

1
T1036.005

Modify Registry

2
T1112

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Discovery

Debugger Evasion

1
T1622

Peripheral Device Discovery

2
T1120

Query Registry

7
T1012

System Information Discovery

7
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

2
T1016

Internet Connection Discovery

1
T1016.001

Virtualization/Sandbox Evasion

1
T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks