Overview

overview

10

Static

static

10

1c2f57889f...ee.exe

windows7-x64

10

1c2f57889f...ee.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1c2f57889f877f43050288b06f044339713ed427a6ec909ab57330203cb905ee

  • Size

    2.0MB

  • Sample

    240424-qyv5naah22

  • MD5

    1b4f235c3e17aaf137d6b7f9b2c52edc

  • SHA1

    045ce4c79fa77bcd0224e40b44156536b8f92f4b

  • SHA256

    1c2f57889f877f43050288b06f044339713ed427a6ec909ab57330203cb905ee

  • SHA512

    3c52f5af66758465842be11cc2e3760963c3cfbf660ddab1cf70a8d0d99a6a4458f7acdf6da5622c7fb1d80b5fd7345f5aca36c0a9dd9bae0d4ad79f59f8a1c7

  • SSDEEP

    24576:kn2XTCHM4xT9V3XzsHhVmatCELYIXVelAtgbHHd:SaTUv0jmtEttc

Score
10/10
dcratinfostealerpersistencerat

Malware Config

Targets

    • Target

      1c2f57889f877f43050288b06f044339713ed427a6ec909ab57330203cb905ee

    • Size

      2.0MB

    • MD5

      1b4f235c3e17aaf137d6b7f9b2c52edc

    • SHA1

      045ce4c79fa77bcd0224e40b44156536b8f92f4b

    • SHA256

      1c2f57889f877f43050288b06f044339713ed427a6ec909ab57330203cb905ee

    • SHA512

      3c52f5af66758465842be11cc2e3760963c3cfbf660ddab1cf70a8d0d99a6a4458f7acdf6da5622c7fb1d80b5fd7345f5aca36c0a9dd9bae0d4ad79f59f8a1c7

    • SSDEEP

      24576:kn2XTCHM4xT9V3XzsHhVmatCELYIXVelAtgbHHd:SaTUv0jmtEttc

    Score
    10/10
    dcratinfostealerpersistencerat

    • 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.

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

      rat

    • Detects executables containing bas64 encoded gzip files

    • 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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

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

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

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks