Overview

overview

10

Static

static

10

5fc67c6c7c...4N.exe

windows7-x64

10

5fc67c6c7c...4N.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    5fc67c6c7caec34905dbcaf6d4eb90f1115bc71d57b0ee07f9481620cfd12b14N.exe

  • Size

    3.4MB

  • Sample

    241117-yrdwsssjgr

  • MD5

    2940f67b5851b30f69161aa3b45ba520

  • SHA1

    2f0c61903289e0321a7fd6af12b2f347a5c57184

  • SHA256

    5fc67c6c7caec34905dbcaf6d4eb90f1115bc71d57b0ee07f9481620cfd12b14

  • SHA512

    ccfe70dd9f94f8102b8860077e834ba45c8283619f2f8d1235bdbe63622e64b516ed9d9ec5cf59dcb4f5983a8c377f9bf901b42a47c28b21bfc17ea855bd4b82

  • SSDEEP

    49152:xZXrXU/5+Zc5SVROVisjq7miG9vv2SNty1kIP2XMxARdp:xZzU4c5SMXq7miAX2SNty1xPuMyHp

Score
10/10
dcratevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      5fc67c6c7caec34905dbcaf6d4eb90f1115bc71d57b0ee07f9481620cfd12b14N.exe

    • Size

      3.4MB

    • MD5

      2940f67b5851b30f69161aa3b45ba520

    • SHA1

      2f0c61903289e0321a7fd6af12b2f347a5c57184

    • SHA256

      5fc67c6c7caec34905dbcaf6d4eb90f1115bc71d57b0ee07f9481620cfd12b14

    • SHA512

      ccfe70dd9f94f8102b8860077e834ba45c8283619f2f8d1235bdbe63622e64b516ed9d9ec5cf59dcb4f5983a8c377f9bf901b42a47c28b21bfc17ea855bd4b82

    • SSDEEP

      49152:xZXrXU/5+Zc5SVROVisjq7miG9vv2SNty1kIP2XMxARdp:xZzU4c5SMXq7miAX2SNty1xPuMyHp

    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
    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