Overview

overview

10

Static

static

3

weave.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    weave.exe

  • Size

    17.8MB

  • Sample

    240921-z9jqfavbrg

  • MD5

    b9ec0212995c8dd4b78a72446c228d4a

  • SHA1

    cb754a76810593ae00c4d67fd21cd4eadd5c7eca

  • SHA256

    f10ced67a54ca6ec4b98bae2c08f638497a40577313a606501d795606fcc7bfc

  • SHA512

    b5b1287af9f0792b99f7f899d09de2984fea119b44bfc79c55a2c6744ff366ea4a5334bd9a3b193aa7995f2f26c0eb1462c14fc80277046c84f66c0f045e6b58

  • SSDEEP

    393216:JRpSJkWPZL21pW14nw8qXknD1jSq/CLP9WU/8bJB+x/XQFWe:JRpSJkeYWCnaXUD1jSq/Ckf+x/XQ

Score
10/10
defense_evasiondiscoveryevasionexecutionpersistencethemidatrojan

Malware Config

Targets

    • Target

      weave.exe

    • Size

      17.8MB

    • MD5

      b9ec0212995c8dd4b78a72446c228d4a

    • SHA1

      cb754a76810593ae00c4d67fd21cd4eadd5c7eca

    • SHA256

      f10ced67a54ca6ec4b98bae2c08f638497a40577313a606501d795606fcc7bfc

    • SHA512

      b5b1287af9f0792b99f7f899d09de2984fea119b44bfc79c55a2c6744ff366ea4a5334bd9a3b193aa7995f2f26c0eb1462c14fc80277046c84f66c0f045e6b58

    • SSDEEP

      393216:JRpSJkWPZL21pW14nw8qXknD1jSq/CLP9WU/8bJB+x/XQFWe:JRpSJkeYWCnaXUD1jSq/Ckf+x/XQ

    Score
    10/10
    defense_evasiondiscoveryevasionexecutionpersistencethemidatrojan

    • Suspicious use of NtCreateUserProcessOtherParentProcess

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

      evasion

    • Command and Scripting Interpreter: PowerShell

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

      execution

    • Stops running service(s)

      evasionexecution

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • Indicator Removal: Clear Windows Event Logs

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

      defense_evasion

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Checks whether UAC is enabled

      evasiontrojan

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

      persistence

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

System Services

1
T1569

Service Execution

1
T1569.002

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Power Settings

1
T1653

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Impair Defenses

1
T1562

Indicator Removal

1
T1070

Clear Windows Event Logs

1
T1070.001

Modify Registry

1
T1112

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Virtualization/Sandbox Evasion

1
T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

1
T1489

Tasks