General

  • Target

    ovisetup.exe

  • Size

    4.4MB

  • Sample

    230206-y471eaba4y

  • MD5

    1692aec61ddcdda471defa199c62d25a

  • SHA1

    484af221468ddb534b74e12970de80d5dfee2b28

  • SHA256

    84bde632c5bfd2a7ff84e579e6f7561543ca0aad6d8e7275dae5926ba4f561c1

  • SHA512

    19155d0770fc0931ab8ac1bf35f56b32c8c122379adac6866b07cebec28932f92be124638cd7bb9fdaff5edd091f3af0c1fbd0757a99de44e24f11214f13329a

  • SSDEEP

    49152:9Hox6U/D1LbDxklrSWZAhizWV4yFK73bBxaaNNG0pHSdtDLboHTBWpHg6UvM98IQ:2x6qaAVpchNG0pHA57HgR

Malware Config

Targets

    • Target

      ovisetup.exe

    • Size

      4.4MB

    • MD5

      1692aec61ddcdda471defa199c62d25a

    • SHA1

      484af221468ddb534b74e12970de80d5dfee2b28

    • SHA256

      84bde632c5bfd2a7ff84e579e6f7561543ca0aad6d8e7275dae5926ba4f561c1

    • SHA512

      19155d0770fc0931ab8ac1bf35f56b32c8c122379adac6866b07cebec28932f92be124638cd7bb9fdaff5edd091f3af0c1fbd0757a99de44e24f11214f13329a

    • SSDEEP

      49152:9Hox6U/D1LbDxklrSWZAhizWV4yFK73bBxaaNNG0pHSdtDLboHTBWpHg6UvM98IQ:2x6qaAVpchNG0pHA57HgR

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Registers COM server for autorun

    • 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

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

2
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

2
T1120

Tasks