Overview

overview

10

Static

static

10

rdpHelper.exe

windows7-x64

10

rdpHelper.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    rdpHelper.exe

  • Size

    3.0MB

  • Sample

    230201-sv5k2acc4v

  • MD5

    1e8b35b160feb419cb6f58b915c11307

  • SHA1

    818cf033de3b72e18b70ca832653e27e54a22302

  • SHA256

    13f25202cd0885dfdeb0c24e856a66a920e1feb0fd87468f928768131c84ab8c

  • SHA512

    00c06e83e8e45757d5228b9101ab3cf034f547bd0d766b95c216ce1abe735291d20068facbfe8221a1684fd4bf3bab76b75cbbb415f72774be9f169a8c5d0b83

  • SSDEEP

    49152:RbA3lgViq4EdTp49JkoIoAAeM4hSIW4hxSVkhl0FiHA9nIWAz/FiKJ86RSQMJ3lk:RbfV7dTpholAfhFByien5W8KJ5HMJ3g9

Score
10/10
dcratevasioninfostealerrattrojan

Malware Config

Targets

    • Target

      rdpHelper.exe

    • Size

      3.0MB

    • MD5

      1e8b35b160feb419cb6f58b915c11307

    • SHA1

      818cf033de3b72e18b70ca832653e27e54a22302

    • SHA256

      13f25202cd0885dfdeb0c24e856a66a920e1feb0fd87468f928768131c84ab8c

    • SHA512

      00c06e83e8e45757d5228b9101ab3cf034f547bd0d766b95c216ce1abe735291d20068facbfe8221a1684fd4bf3bab76b75cbbb415f72774be9f169a8c5d0b83

    • SSDEEP

      49152:RbA3lgViq4EdTp49JkoIoAAeM4hSIW4hxSVkhl0FiHA9nIWAz/FiKJ86RSQMJ3lk:RbfV7dTpholAfhFByien5W8KJ5HMJ3g9

    Score
    10/10
    dcratevasioninfostealerrattrojan

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

      ratinfostealerdcrat

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • UAC bypass

      evasiontrojan

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

      rat

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Checks whether UAC is enabled

      evasiontrojan
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Bypass User Account Control

1
T1088

Scheduled Task

1
T1053

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks