Overview

overview

10

Static

static

1

windows-malware

windows10-ltsc 2021-x64

10

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General

  • Target

    windows-malware

  • Size

    239KB

  • Sample

    250113-sbx2vaykdr

  • MD5

    77f8ac1a34b0242dd8dc6583e17257e4

  • SHA1

    f5adfa1320b7844be18795168f049bd534730900

  • SHA256

    6c835a46278657afe1b1f2f7b3a47922e5debf5ab249058fc2b8bbdf772eadd5

  • SHA512

    f0eae5c1b75e046e01e743f1c6dd871281e8d8b52f60f9e1e5b2e6589723c82d6af44e347fc5196f3bb617d357be1f7d4cb1a96655848007745e41314d01a5a6

  • SSDEEP

    6144:Q7NnOpOL/saqkPV9Fe2LtcIDSsmwN9BvZJT3CqbMrhryf65NRPaCieMjAkvCJv11:INnOpOL/saqkPV9Fe2LtcIDSsmwN9Bvo

Score
10/10
dharmacredential_accessdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Targets

    • Target

      windows-malware

    • Size

      239KB

    • MD5

      77f8ac1a34b0242dd8dc6583e17257e4

    • SHA1

      f5adfa1320b7844be18795168f049bd534730900

    • SHA256

      6c835a46278657afe1b1f2f7b3a47922e5debf5ab249058fc2b8bbdf772eadd5

    • SHA512

      f0eae5c1b75e046e01e743f1c6dd871281e8d8b52f60f9e1e5b2e6589723c82d6af44e347fc5196f3bb617d357be1f7d4cb1a96655848007745e41314d01a5a6

    • SSDEEP

      6144:Q7NnOpOL/saqkPV9Fe2LtcIDSsmwN9BvZJT3CqbMrhryf65NRPaCieMjAkvCJv11:INnOpOL/saqkPV9Fe2LtcIDSsmwN9Bvo

    Score
    10/10
    dharmacredential_accessdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

    • Dharma

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

      ransomwaredharma

    • Dharma family

      dharma

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Renames multiple (524) files with added filename extension

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

      ransomware

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

      credential_accessstealer

    • Deletes itself

    • Drops startup file

    • Executes dropped EXE

    • 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

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Direct Volume Access

1
T1006

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

1
T1112

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

3
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

2
T1490

Tasks