General

  • Target

    RobloxPlayerLauncher.exe

  • Size

    2.0MB

  • Sample

    230402-bb4e7afb3t

  • MD5

    6b68f3be3850e9b2ac03bad9f4de5b88

  • SHA1

    57c59090e38d6e0128874ed93f53a4e3c65ee47b

  • SHA256

    159a30c008bb234af56a7c786cb5352e7b96dc62fac6b2ca2ea7fa75fc6841b7

  • SHA512

    de8b266ef96aec59987e025dfccd51d8bd91e7e4523c6bc4ccab73de5819b429033da773c1f155e98607d1d60bd63e1b07deca2b454493bd5b8122cc265bbeb7

  • SSDEEP

    49152:UUvIzhIhn1g5yca9e3j8ITYMao+8k1TymMYPMQ3dS/BTXsb6Hrvd:USnhn6yca9ezeEsbg

Malware Config

Targets

    • Target

      RobloxPlayerLauncher.exe

    • Size

      2.0MB

    • MD5

      6b68f3be3850e9b2ac03bad9f4de5b88

    • SHA1

      57c59090e38d6e0128874ed93f53a4e3c65ee47b

    • SHA256

      159a30c008bb234af56a7c786cb5352e7b96dc62fac6b2ca2ea7fa75fc6841b7

    • SHA512

      de8b266ef96aec59987e025dfccd51d8bd91e7e4523c6bc4ccab73de5819b429033da773c1f155e98607d1d60bd63e1b07deca2b454493bd5b8122cc265bbeb7

    • SSDEEP

      49152:UUvIzhIhn1g5yca9e3j8ITYMao+8k1TymMYPMQ3dS/BTXsb6Hrvd:USnhn6yca9ezeEsbg

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • 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.

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • 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

Modify Registry

2
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks