General

  • Target

    09040999.exe

  • Size

    779KB

  • Sample

    230603-klez1sge7s

  • MD5

    a37c22ea76ce8b8be657dc03617de33a

  • SHA1

    cb409c880a786925d233bc6e107e42ca818d9268

  • SHA256

    f37f10f313f25d4193e7c028475ac84ce803c70d1982c6f89a4bd2f35b7e98a9

  • SHA512

    c6963d4023ebe0e44f2b38add9978b7fb0486a28a40f924356ab1a44d4dc0f2a92c42cf0374a8f675d4c76574befa682a5f98059cb89d5004a650b78c793c54e

  • SSDEEP

    12288:wMrVy90okEoOg5ixeEjgwQ+ONRE8XK9kky7pAoMlRm0Y5PZfdJuQG8q/:1yDoZix1Mnp6OD7pAllNY5rJXG8q/

Malware Config

Extracted

Family

redline

Botnet

maxi

C2

83.97.73.126:19046

Attributes
  • auth_value

    6a3f22e5f4209b056a3fd330dc71956a

Extracted

Family

redline

Botnet

metro

C2

83.97.73.126:19046

Attributes
  • auth_value

    f7fd4aa816bdbaad933b45b51d9b6b1a

Targets

    • Target

      09040999.exe

    • Size

      779KB

    • MD5

      a37c22ea76ce8b8be657dc03617de33a

    • SHA1

      cb409c880a786925d233bc6e107e42ca818d9268

    • SHA256

      f37f10f313f25d4193e7c028475ac84ce803c70d1982c6f89a4bd2f35b7e98a9

    • SHA512

      c6963d4023ebe0e44f2b38add9978b7fb0486a28a40f924356ab1a44d4dc0f2a92c42cf0374a8f675d4c76574befa682a5f98059cb89d5004a650b78c793c54e

    • SSDEEP

      12288:wMrVy90okEoOg5ixeEjgwQ+ONRE8XK9kky7pAoMlRm0Y5PZfdJuQG8q/:1yDoZix1Mnp6OD7pAllNY5rJXG8q/

    • Modifies Windows Defender Real-time Protection settings

    • RedLine

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

2
T1112

Disabling Security Tools

1
T1089

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Tasks