Overview

overview

10

Static

static

10

f7d1ba849b...0b.exe

windows7-x64

10

f7d1ba849b...0b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f7d1ba849bec5c9f1761a6b420f793fa7c350be0e66d40788cde74650bf8a20b

  • Size

    952KB

  • Sample

    241107-xqxf3sxdnj

  • MD5

    2e9644402e12601f1d8161857c48a3ad

  • SHA1

    43b55976d438bc8273932f12a12b7f248165e8a9

  • SHA256

    f7d1ba849bec5c9f1761a6b420f793fa7c350be0e66d40788cde74650bf8a20b

  • SHA512

    4e1efd2ef2a9e9f062c3a9321cb28c34a56edc9b398e857eb3f14ecc6ded5660249a4523b8c21eccf3db524625b05ab1b075d7be20f68d0e27f91e7b403a1662

  • SSDEEP

    24576:Q+O7F9smBDJwWmIezBLwsHuWbxR4AK5ZJXX:z8/KfRTK

Score
10/10
dcratevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      f7d1ba849bec5c9f1761a6b420f793fa7c350be0e66d40788cde74650bf8a20b

    • Size

      952KB

    • MD5

      2e9644402e12601f1d8161857c48a3ad

    • SHA1

      43b55976d438bc8273932f12a12b7f248165e8a9

    • SHA256

      f7d1ba849bec5c9f1761a6b420f793fa7c350be0e66d40788cde74650bf8a20b

    • SHA512

      4e1efd2ef2a9e9f062c3a9321cb28c34a56edc9b398e857eb3f14ecc6ded5660249a4523b8c21eccf3db524625b05ab1b075d7be20f68d0e27f91e7b403a1662

    • SSDEEP

      24576:Q+O7F9smBDJwWmIezBLwsHuWbxR4AK5ZJXX:z8/KfRTK

    Score
    10/10
    dcratevasioninfostealerpersistencerattrojan

    • DcRat

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

      ratinfostealerdcrat

    • Dcrat family

      dcrat

    • Modifies WinLogon for persistence

      persistence

    • 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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

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

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

4
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks