General

  • Target

    rcsetup153.exe

  • Size

    11.3MB

  • Sample

    230322-2j1x5sdg5w

  • MD5

    90e8564308043d11b65215dcedcdb4c0

  • SHA1

    56f6ac4fda81334483b878cbb5c606312ad783ca

  • SHA256

    c9b7b6b2aa03cfd41164df798f6481eb81fc7260635e7bcc5b7cfc3409660e76

  • SHA512

    0f44dd5abfe7d79fd03f2b9a4ec0970a4b488c1a3e3bf5fabdea88bd61a5a81143f51dc316828ec80feed66e74ba69157294697e473c0f77030d757caa87ffb9

  • SSDEEP

    196608:rEpX2/5WWnKf7YrfS2VwY6Inliwuu02znPyCC4VSC+xShskxOfLWdDSAj2VGHfN:rfWWWYzlwYXS2zP44QxwEfLGSAaVSfN

Malware Config

Targets

    • Target

      rcsetup153.exe

    • Size

      11.3MB

    • MD5

      90e8564308043d11b65215dcedcdb4c0

    • SHA1

      56f6ac4fda81334483b878cbb5c606312ad783ca

    • SHA256

      c9b7b6b2aa03cfd41164df798f6481eb81fc7260635e7bcc5b7cfc3409660e76

    • SHA512

      0f44dd5abfe7d79fd03f2b9a4ec0970a4b488c1a3e3bf5fabdea88bd61a5a81143f51dc316828ec80feed66e74ba69157294697e473c0f77030d757caa87ffb9

    • SSDEEP

      196608:rEpX2/5WWnKf7YrfS2VwY6Inliwuu02znPyCC4VSC+xShskxOfLWdDSAj2VGHfN:rfWWWYzlwYXS2zP44QxwEfLGSAaVSfN

    • 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.

    • Registers COM server for autorun

    • Checks installed software on the system

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

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Bootkit

1
T1067

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

5
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Tasks