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Overview

overview

10

Static

static

10

36b4c1632f...20.exe

windows7-x64

10

36b4c1632f...20.exe

windows10-2004-x64

10

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General

  • Target

    36b4c1632f6121f74305e5af623f983c9b97b01080470c7daae076dff51b8c20.exe

  • Size

    3.4MB

  • Sample

    240510-blql3sab3t

  • MD5

    1b57989c5c9ef0b64db6fbc2c88b346b

  • SHA1

    75818e0eedd98f90c338edbc2ad6882f6a11fb06

  • SHA256

    36b4c1632f6121f74305e5af623f983c9b97b01080470c7daae076dff51b8c20

  • SHA512

    269cc8c6918a00a1df3e932ca3c7aec08913dfe2d545bc7bdcb9ced00b1038ada214ed167619b96a38a0c865889c0a590d3b8be1aaaa3c036db3ba0c9d65be7a

  • SSDEEP

    49152:h7/RbqaJqrkG24yhaf1hD3uR4S1o+NO6QolF2YpwCgOGE2/xB/r/4ri:F1t5Qa4YowtJwCHG5xBj/4

Score
10/10
dcratevasioninfostealerpersistencerattrojan

Malware Config

Targets

    • Target

      36b4c1632f6121f74305e5af623f983c9b97b01080470c7daae076dff51b8c20.exe

    • Size

      3.4MB

    • MD5

      1b57989c5c9ef0b64db6fbc2c88b346b

    • SHA1

      75818e0eedd98f90c338edbc2ad6882f6a11fb06

    • SHA256

      36b4c1632f6121f74305e5af623f983c9b97b01080470c7daae076dff51b8c20

    • SHA512

      269cc8c6918a00a1df3e932ca3c7aec08913dfe2d545bc7bdcb9ced00b1038ada214ed167619b96a38a0c865889c0a590d3b8be1aaaa3c036db3ba0c9d65be7a

    • SSDEEP

      49152:h7/RbqaJqrkG24yhaf1hD3uR4S1o+NO6QolF2YpwCgOGE2/xB/r/4ri:F1t5Qa4YowtJwCHG5xBj/4

    Score
    10/10
    dcratevasioninfostealerpersistencerattrojan

    • DcRat

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

      ratinfostealerdcrat

    • 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

    • Detects executables packed with SmartAssembly

    • 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

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

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

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