Overview

overview

10

Static

static

10

c1fb621cbb...44.exe

windows7-x64

10

c1fb621cbb...44.exe

windows10-2004-x64

10

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General

  • Target

    c1fb621cbb84ba538603cae73960db7969ec4bde877e5692241c82ea25bdf644.exe

  • Size

    828KB

  • Sample

    240523-ce98kshh54

  • MD5

    a452777147dc02f5d8ccacfc0502ac7c

  • SHA1

    da8810335c641f55872b90a6ea7f178a0875721c

  • SHA256

    c1fb621cbb84ba538603cae73960db7969ec4bde877e5692241c82ea25bdf644

  • SHA512

    5015d12dac1a4a6825dcd01adf04b9ea307b3654e851bf07e41087f4ebb1b744b67c397eb0af282b3452cae5849266c7e00c2e41537795d7c78e5c043012d760

  • SSDEEP

    12288:jJx18sm9InH/pOz0KkYXPFSdj+ZygwBEMjdvcGtJN1adr:jBDmqnH/G0KkYXKcedvceN1ar

Score
10/10
dcratinfostealerpersistencerat

Malware Config

Targets

    • Target

      c1fb621cbb84ba538603cae73960db7969ec4bde877e5692241c82ea25bdf644.exe

    • Size

      828KB

    • MD5

      a452777147dc02f5d8ccacfc0502ac7c

    • SHA1

      da8810335c641f55872b90a6ea7f178a0875721c

    • SHA256

      c1fb621cbb84ba538603cae73960db7969ec4bde877e5692241c82ea25bdf644

    • SHA512

      5015d12dac1a4a6825dcd01adf04b9ea307b3654e851bf07e41087f4ebb1b744b67c397eb0af282b3452cae5849266c7e00c2e41537795d7c78e5c043012d760

    • SSDEEP

      12288:jJx18sm9InH/pOz0KkYXPFSdj+ZygwBEMjdvcGtJN1adr:jBDmqnH/G0KkYXKcedvceN1ar

    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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence
    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