Overview

overview

10

Static

static

3

a44d817c29...dd.exe

windows7-x64

10

a44d817c29...dd.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a44d817c29c97f1418de7f456bd7609c37c774e90f83947b317260a87c48bedd.exe

  • Size

    23.2MB

  • Sample

    240430-b4rbbshb9t

  • MD5

    aabdecc74290221f555bc6400ceef5c6

  • SHA1

    6bf8559dfd409bee873f4e147f31ce313d23f2bc

  • SHA256

    a44d817c29c97f1418de7f456bd7609c37c774e90f83947b317260a87c48bedd

  • SHA512

    880d741faf049b9276c4ab10e6e3a0817ef28cb05f0e00fa3edf814ebf545d3d316dfac022fcff4b8fee9f95e18542e2cf7e89f02702e30409409f40a5fb6bbe

  • SSDEEP

    393216:+/NvciCzO7XohRMU0K611YKvcg7dSVqMXDVZm/3hL1/VYs0tvj1Q3QJrSZ0aP54d:+1ciC6ohRMPK6gKzRctVZmf//VYRtvjR

Score
10/10
mimicevasionpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      a44d817c29c97f1418de7f456bd7609c37c774e90f83947b317260a87c48bedd.exe

    • Size

      23.2MB

    • MD5

      aabdecc74290221f555bc6400ceef5c6

    • SHA1

      6bf8559dfd409bee873f4e147f31ce313d23f2bc

    • SHA256

      a44d817c29c97f1418de7f456bd7609c37c774e90f83947b317260a87c48bedd

    • SHA512

      880d741faf049b9276c4ab10e6e3a0817ef28cb05f0e00fa3edf814ebf545d3d316dfac022fcff4b8fee9f95e18542e2cf7e89f02702e30409409f40a5fb6bbe

    • SSDEEP

      393216:+/NvciCzO7XohRMU0K611YKvcg7dSVqMXDVZm/3hL1/VYs0tvj1Q3QJrSZ0aP54d:+1ciC6ohRMPK6gKzRctVZmf//VYRtvjR

    Score
    10/10
    mimicevasionpersistenceransomwarespywarestealer

    • Detects Mimic ransomware

    • Mimic

      Ransomware family was first exploited in the wild in 2022.

      ransomwaremimic

    • Modifies security service

      evasion

    • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

    • Detects command variations typically used by ransomware

    • Detects executables containing anti-forensic artifacts of deleting USN change journal. Observed in ransomware

    • Detects executables containing commands for clearing Windows Event Logs

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Renames multiple (6742) 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

    • Sets file execution options in registry

      persistence

    • Checks computer location settings

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

    • 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

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Defense Evasion

Indicator Removal

1
T1070

File Deletion

1
T1070.004

Modify Registry

5
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Peripheral Device Discovery

2
T1120

Query Registry

4
T1012

System Information Discovery

4
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2
T1490

Tasks