General

  • Target

    84056f0ddc342942d07c8a50214f2ab493e74adea8c9ce125de4d7ee35bc6efe.exe

  • Size

    3.0MB

  • Sample

    240423-bxrnhsba9z

  • MD5

    d0189cdd22cfaa374b55017aa04d9399

  • SHA1

    6661f132b1e119f5c93357b0320651ea88fcda18

  • SHA256

    84056f0ddc342942d07c8a50214f2ab493e74adea8c9ce125de4d7ee35bc6efe

  • SHA512

    9a8149a0f7d6b33df3a92976a892da3638a02e35ebb6494bd7aaf01638a619a14325fec5667a2fb164a89f7eaf6a9c47fe8f687d7b70cc8903ccbb13f07f4f81

  • SSDEEP

    49152:zBS0q9ZcpcbbCMg4OywrgnoS2pnMEbmwk3XqT1S5I/iziNl1andabnpddVE:NGOaTU2AdZIq1SiiaEdabnpddVE

Malware Config

Extracted

Family

redline

C2

37.220.87.13:48790

Attributes
  • auth_value

    ad9ddedcc84f0f07f1c53ae5fd0df093

Targets

    • Target

      84056f0ddc342942d07c8a50214f2ab493e74adea8c9ce125de4d7ee35bc6efe.exe

    • Size

      3.0MB

    • MD5

      d0189cdd22cfaa374b55017aa04d9399

    • SHA1

      6661f132b1e119f5c93357b0320651ea88fcda18

    • SHA256

      84056f0ddc342942d07c8a50214f2ab493e74adea8c9ce125de4d7ee35bc6efe

    • SHA512

      9a8149a0f7d6b33df3a92976a892da3638a02e35ebb6494bd7aaf01638a619a14325fec5667a2fb164a89f7eaf6a9c47fe8f687d7b70cc8903ccbb13f07f4f81

    • SSDEEP

      49152:zBS0q9ZcpcbbCMg4OywrgnoS2pnMEbmwk3XqT1S5I/iziNl1andabnpddVE:NGOaTU2AdZIq1SiiaEdabnpddVE

    • DcRat

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

    • Detect ZGRat V1

    • Modifies WinLogon for persistence

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • UAC bypass

    • ZGRat

      ZGRat is remote access trojan written in C#.

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Detects executables packed with SmartAssembly

    • Disables Task Manager via registry modification

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

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

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

5
T1112

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Tasks