Overview

overview

10

Static

static

3

Void A-B.dll

windows11-21h2-x64

1

Void V-B.exe

windows11-21h2-x64

WinDivert.dll

windows11-21h2-x64

1

WinDivert64.sys

windows11-21h2-x64

1

Sharing

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General

  • Target

    Void_antikick_and_antibanned.rar

  • Size

    361KB

  • Sample

    241227-c1ptrszmcz

  • MD5

    157111f87cf7ffd6472484a8e919325f

  • SHA1

    b0b4125f4cfaa5a66f9dc9a4879750d677a6b7c8

  • SHA256

    dd4694bfe86880e9cdc215804b0a61ff320664702660adf91eb1986d44c3e76c

  • SHA512

    b116af6aa5ca5e6b138632b3c11da77e1f57ae87c641bdf6d206029aacdfb5a3611fd59e7871d831b4745614d86da18f61d8c4b14264f88f160706e990944e14

  • SSDEEP

    6144:Zld0SQjGkxCGyt2fnludJm+vpe/Bd5pHZlZrrI25BH1lDh8rsxF5ioxbQ:ZTQakxCR+nfm0/75LfV1ll8rsxFcoRQ

Score
10/10
dharmacredential_accessdefense_evasiondiscoveryevasionexecutionimpactpersistenceprivilege_escalationransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      Void A-B.dll

    • Size

      15KB

    • MD5

      1b1284100327d972e017f565dbecf80e

    • SHA1

      5b4f0c122a80478973eb6f9cb3bbcaf186295aea

    • SHA256

      9444a6e6b66f13f666f9c60d1935824f61c7256e35a8cf0440e29baa7fbe42c7

    • SHA512

      4ccb9e233a3573f6eded0efa8fa54ed929818394cdf2153623d902c749d37751da6f489354aa50968e53d42d5ce339f6368dedb7858a4ff43a1927b4338954a4

    • SSDEEP

      384:EHGiP0PYf9pHuGvATXlQRNq/EbUKxcneWuDlE:E9MQf90GvQXlQvAEcehD

    Score
    1/10
    behavioral1

    • Target

      Void V-B.exe

    • Size

      1.1MB

    • MD5

      1043dd9ad98e1d290bb38597da832236

    • SHA1

      d4ed17f479ed0675ff1dc1a35072a76ece4963e3

    • SHA256

      4c1adfe7948b25780e81ea03175989e9c890e863691a22644785beab86399246

    • SHA512

      dfb2f085261dba405f2f780fd55e8952b4bd0c134da9563ef3a6b96f65c6d9714078c8ef8aedfdde2d5a30f986776ab46f4749bd75539f17a7b49bae2bd32050

    • SSDEEP

      24576:WdQOhDsVixFXYnS6mjHSgRqH9RcEhqsUst:WJYViIS6mjJR0cE0sUst

    Score
    10/10
    dharmacredential_accessdefense_evasiondiscoveryevasionexecutionimpactpersistenceprivilege_escalationransomwarespywarestealertrojan

    • Dharma

      Dharma is a ransomware that uses security software installation to hide malicious activities.

      ransomwaredharma

    • Dharma family

      dharma

    • Modifies WinLogon for persistence

      persistence

    • Modifies Windows Defender Real-time Protection settings

      evasiontrojan

    • UAC bypass

      evasiontrojan

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Renames multiple (552) files with added filename extension

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

      ransomware

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      evasion

    • Disables use of System Restore points

      evasion

    • Downloads MZ/PE file

    • Event Triggered Execution: Image File Execution Options Injection

      persistence

    • Modifies Windows Firewall

      evasion

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

      credential_accessstealer

    • Deletes itself

    • Drops startup file

    • Executes dropped EXE

    • Impair Defenses: Safe Mode Boot

      defense_evasion

    • Loads dropped DLL

    • 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

    • Checks whether UAC is enabled

      evasiontrojan

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral2

    • Target

      WinDivert.dll

    • Size

      15KB

    • MD5

      1b1284100327d972e017f565dbecf80e

    • SHA1

      5b4f0c122a80478973eb6f9cb3bbcaf186295aea

    • SHA256

      9444a6e6b66f13f666f9c60d1935824f61c7256e35a8cf0440e29baa7fbe42c7

    • SHA512

      4ccb9e233a3573f6eded0efa8fa54ed929818394cdf2153623d902c749d37751da6f489354aa50968e53d42d5ce339f6368dedb7858a4ff43a1927b4338954a4

    • SSDEEP

      384:EHGiP0PYf9pHuGvATXlQRNq/EbUKxcneWuDlE:E9MQf90GvQXlQvAEcehD

    Score
    1/10
    behavioral3

    • Target

      WinDivert64.sys

    • Size

      37KB

    • MD5

      3bd5ac2e9d96e680f5dbdd183a58c47d

    • SHA1

      83b08cb5e61c7b37bd710ea01196a26fc8f38610

    • SHA256

      208c092fe77f161c5a313b916d73fa7f6d10dd289bab8bb5dfb3d59aacb27f25

    • SHA512

      6cccd7971f423f72f5dbd01a83a2d27bb2bde63c4d1f5e127d77cfa0df85c289a2c3cd95c110ce38b58b9ea9a49aad18ae50f352ac6b21740d0294f771fbcb78

    • SSDEEP

      768:R5VorUqgJs3/KtdrbYiZdNSRUYjbMUYOUaCdHUZ9fdCrYc:vVorUn9cRUuILLd07fdCU

    Score
    1/10
    behavioral4

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

2
T1546

Image File Execution Options Injection

1
T1546.012

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Event Triggered Execution

2
T1546

Image File Execution Options Injection

1
T1546.012

Netsh Helper DLL

1
T1546.007

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Direct Volume Access

1
T1006

Impair Defenses

4
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

2
T1562.001

Safe Mode Boot

1
T1562.009

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

5
T1112

Subvert Trust Controls

1
T1553

SIP and Trust Provider Hijacking

1
T1553.003

Credential Access

Credentials from Password Stores

2
T1555

Credentials from Web Browsers

1
T1555.003

Windows Credential Manager

1
T1555.004

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Query Registry

3
T1012

System Information Discovery

4
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

Inhibit System Recovery

3
T1490

Tasks