Overview

overview

8

Static

static

1

Calveroth-...up.msi

windows10-2004-x64

8

Calveroth-...up.msi

windows11-21h2-x64

8

Sharing

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General

  • Target
    Calveroth-1.0.0-setup.msi
  • Size 84.0MB
  • Sample251009-sa685afl91
  • SHA256 31be4c1f37cb8b60d22b5beb2c535263d9273f142cb314e3dc67031549f909b4
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10
defense_evasiondiscoveryexecutionpersistenceprivilege_escalationransomwarespywarestealer

Malware Config

Targets

    • Target
      Calveroth-1.0.0-setup.msi
    • Size 84.0MB
    • SHA256 31be4c1f37cb8b60d22b5beb2c535263d9273f142cb314e3dc67031549f909b4
    • MD5 SHA1 SHA512 SSDEEP
    Score
    8/10
    defense_evasiondiscoveryexecutionpersistenceprivilege_escalationransomwarespywarestealer

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Drops startup file

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

      defense_evasion

    • Checks computer location settings

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

    • Enumerates processes with tasklist

      discovery
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Persistence

Event Triggered Execution

1
T1546

Installer Packages

1
T1546.016

Privilege Escalation

Event Triggered Execution

1
T1546

Installer Packages

1
T1546.016

Defense Evasion

Obfuscated Files or Information

1
T1027

Command Obfuscation

1
T1027.010

System Binary Proxy Execution

1
T1218

Msiexec

1
T1218.007

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Peripheral Device Discovery

2
T1120

Process Discovery

1
T1057

Query Registry

5
T1012

System Information Discovery

6
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Tasks