Overview

overview

10

Static

static

1

.html

windows10-2004-x64

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General

  • Target

    .

  • Size

    147KB

  • Sample

    240613-r6wltstbmg

  • MD5

    1d1dde49e7a7a16fa3162be50e6acd20

  • SHA1

    21175d8fed3392f6f6192296a52905165bededda

  • SHA256

    28e2a197b82bb1175920fe0e897b6c5fe809ee1ddde507fb213db334594b1163

  • SHA512

    a3565cde92e851032d423ddeb27d9212f4ea985297e61017e50022c8fc27821682e080444a9d206b052080d24f069bdf5175cee2391473c0f068223d97ea7fc0

  • SSDEEP

    1536:onvk6HxYfrVCCRldR4DWll6Q9Ut30vD932ks4DZHhqiS:8kRf5RDpllXawrHhqiS

Score
10/10
dharmaagilenetdefense_evasionevasionexecutionimpactpersistenceransomwaretrojan

Malware Config

Targets

    • Target

      .

    • Size

      147KB

    • MD5

      1d1dde49e7a7a16fa3162be50e6acd20

    • SHA1

      21175d8fed3392f6f6192296a52905165bededda

    • SHA256

      28e2a197b82bb1175920fe0e897b6c5fe809ee1ddde507fb213db334594b1163

    • SHA512

      a3565cde92e851032d423ddeb27d9212f4ea985297e61017e50022c8fc27821682e080444a9d206b052080d24f069bdf5175cee2391473c0f068223d97ea7fc0

    • SSDEEP

      1536:onvk6HxYfrVCCRldR4DWll6Q9Ut30vD932ks4DZHhqiS:8kRf5RDpllXawrHhqiS

    Score
    10/10
    dharmaagilenetdefense_evasionevasionexecutionimpactpersistenceransomwaretrojan

    • Dharma

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

      ransomwaredharma

    • Modifies WinLogon for persistence

      persistence

    • UAC bypass

      evasiontrojan

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Renames multiple (212) 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

    • Downloads MZ/PE file

    • 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

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

      agilenet

    • Adds Run key to start application

      persistence

    • Drops desktop.ini file(s)

    • 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

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Matrix ATT&CK v13

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

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

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Defense Evasion

Modify Registry

5
T1112

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Credential Access

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

2
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Inhibit System Recovery

2
T1490

Resource Development

Reconnaissance

Tasks