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Overview

overview

10

Static

static

3

81423f5454...72.exe

windows7-x64

10

81423f5454...72.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    81423f5454208e958aa183c2850809620676485c63aab07d91a6f85c1d9b4e72

  • Size

    2.6MB

  • Sample

    250115-177j6aymfm

  • MD5

    4dedefe4431f91c920d9aaaceb99e2ee

  • SHA1

    9a20559fa8a3e670c734837de16fa508d5e25b41

  • SHA256

    81423f5454208e958aa183c2850809620676485c63aab07d91a6f85c1d9b4e72

  • SHA512

    cb7d2fe42cd44f7b1c31102961c579d7ba5a6e8f5071dfdb372dade85f56572dd870f54ca32b160faa58536f0f40e4ceb39745ae076fb8d546dd358ebe96f086

  • SSDEEP

    49152:wgwReifu1DBgutBPN4gJEkSBz4aPUAigHrBYlHYw/s5CH5Ie71yAmiESeJKeqy:wgwRevguPPjg946UAFLBEYw/s5CX7tmj

Score
10/10
mimicdiscoveryevasionexecutionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      81423f5454208e958aa183c2850809620676485c63aab07d91a6f85c1d9b4e72

    • Size

      2.6MB

    • MD5

      4dedefe4431f91c920d9aaaceb99e2ee

    • SHA1

      9a20559fa8a3e670c734837de16fa508d5e25b41

    • SHA256

      81423f5454208e958aa183c2850809620676485c63aab07d91a6f85c1d9b4e72

    • SHA512

      cb7d2fe42cd44f7b1c31102961c579d7ba5a6e8f5071dfdb372dade85f56572dd870f54ca32b160faa58536f0f40e4ceb39745ae076fb8d546dd358ebe96f086

    • SSDEEP

      49152:wgwReifu1DBgutBPN4gJEkSBz4aPUAigHrBYlHYw/s5CH5Ie71yAmiESeJKeqy:wgwRevguPPjg946UAFLBEYw/s5CX7tmj

    Score
    10/10
    mimicdiscoveryevasionexecutionpersistenceransomwarespywarestealertrojan

    • Detects Mimic ransomware

    • Mimic

      Ransomware family was first exploited in the wild in 2022.

      ransomwaremimic

    • Mimic family

      mimic

    • Modifies security service

      evasion

    • UAC bypass

      evasiontrojan

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (6327) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Deletes System State backups

      Uses wbadmin.exe to inhibit system recovery.

      ransomware

    • Event Triggered Execution: Image File Execution Options Injection

      persistence

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

      persistence

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Enumerates connected drives

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

    • 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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

PowerShell

1
T1059.001

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

2
T1546

Change Default File Association

1
T1546.001

Image File Execution Options Injection

1
T1546.012

Power Settings

1
T1653

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

2
T1546

Change Default File Association

1
T1546.001

Image File Execution Options Injection

1
T1546.012

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Indicator Removal

1
T1070

File Deletion

1
T1070.004

Modify Registry

6
T1112

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

Query Registry

4
T1012

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2
T1490

Tasks