Overview

overview

10

Static

static

3

rassd/BR.M...er.exe

windows10-2004-x64

10

rassd/Blue...01.exe

windows10-2004-x64

6

Sharing

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General

  • Target
    rassd.rar
  • Size 919KB
  • Sample260802-jv3xrsfd58
  • SHA256 9822d680359849cf83aae6da55cb52d1a6d68deb5238bcadc931441d96dffaf2
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
darksideratdefense_evasiondiscoveryexecutionpersistenceprivilege_escalationtrojan

Malware Config

Targets

    • Target
      rassd/BR.Mods.Launcher.exe
    • Size 356KB
    • SHA256 3f6ae50a98ce0ee86eb84532eccb05ff14ebffce95cd30d0291553055781995f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    darksiderattrojan

    • Detects DarkSideRAT

    • Family: DarkSideRAT

      DarkSideRAT is a remote access trojan.

      trojandarksiderat

    • Suspicious use of SetThreadContext

    behavioral1
    • Target
      rassd/BlueStack-5.22.125.1001.exe
    • Size 927KB
    • SHA256 a52babce6f6eabf4f968a7adaa0796ccbe076dcf20645575eafb0265f7f3ca19
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    6/10
    defense_evasiondiscoveryexecutionpersistenceprivilege_escalation

    • Adds Run key to start application

      persistence

    • Downloads MZ/PE file

    • Enumerates connected drives

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

    • Looks up external IP address via web service

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

      discovery

    • Modifies Windows Firewall

      defense_evasion

    • Checks computer location settings

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

    • Discovers running processes

      Running process information can be used to identify security tools or plan follow-on actions.

      discovery

    • Drops file in System32 directory

    • Executes a VBScript file via the Windows Script Host.

      execution
    behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

Visual Basic

1
T1059.005

Windows Command Shell

1
T1059.003

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

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

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

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

1
T1112

Credential Access

Discovery

Browser Information Discovery

1
T1217

Peripheral Device Discovery

1
T1120

Process Discovery

1
T1057

Query Registry

5
T1012

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

System Time Discovery

1
T1124

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks